Commit graph

96,010 commits

Author SHA1 Message Date
Andreas Gruenbacher
97d7929922 posix acls: Remove duplicate xattr name definitions
Remove POSIX_ACL_XATTR_{ACCESS,DEFAULT} and GFS2_POSIX_ACL_{ACCESS,DEFAULT}
and replace them with the definitions in <include/uapi/linux/xattr.h>.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-06 21:25:17 -05:00
Andreas Gruenbacher
80602324d5 vfs: Remove vfs_xattr_cmp
This function was only briefly used in security/integrity/evm, between
commits 66dbc325 and 15647eb3.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-06 21:25:16 -05:00
Yaowei Bai
d37177bacd fs/attr.c: is_sxid can be boolean
This patch makes is_sxid return bool to improve readability
due to this particular function only using either one or zero
as its return value.

No functional change.

Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-06 21:17:14 -05:00
Yaowei Bai
0e3ef1fe45 fs/bad_inode.c: is_bad_inode can be boolean
This patch makes is_bad_inode return bool to improve
readability due to this particular function only using either
one or zero as its return value.

No functional change.

Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-06 21:17:14 -05:00
Yaowei Bai
a6e5787fc8 fs/dcache.c: is_subdir can be boolean
This patch makes is_subdir return bool to improve
readability due to this particular function only using either
one or zero as its return value.

No functional change.

Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-06 21:17:13 -05:00
Yaowei Bai
25ab4c9b1c fs/namespace.c: path_is_under can be boolean
This patch makes path_is_under return bool to improve
readability due to this particular function only using either
one or zero as its return value.

No functional change.

Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-06 21:17:13 -05:00
Yaowei Bai
3e004eea56 fs/block_dev.c: make sb_is_blkdev_sb return bool when CONFIG_BLOCK undefined
Currently when CONFIG_BLOCK is defined sb_is_blkdev_sb returns bool,
while when CONFIG_BLOCK is not defined it returns int. Let's keep
consistent to make sb_is_blkdev_sb return bool as well when CONFIG_BLOCK
isn't defined.

No functional change.

Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-06 21:17:12 -05:00
Al Viro
36f7a8a4cd iov_iter: constify {csum_and_,}copy_to_iter()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-06 20:42:15 -05:00
Andy Shevchenko
4d215cabc7 mfd: core: propagate device properties to sub devices drivers
In the similar way like we do for the platform data we propagate the device
properties. For example, in case of Intel LPSS drivers we may provide a
specific property to tell the actual device driver an additional information
such as platform name.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-07 02:29:23 +01:00
Mika Westerberg
00bbc1d8e4 driver core: platform: Add support for built-in device properties
Make it possible to pass built-in device properties to platform device
drivers. This is useful if the system does not have any firmware interface
like Device Tree or ACPI which provides these.

Properties associated with the platform device will be automatically
released when the corresponding device is removed.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-07 02:29:23 +01:00
Mika Westerberg
13141e1cb8 device property: Take a copy of the property set
It is convenient if the property set associated with the device secondary
firmware node is a copy of the original. This allows passing property set
from a stack for example for devices created dynamically. This also ties
the property set lifetime to the associated device.

Because of that we provide new function device_remove_property_set() that
is used to disassociate and release memory allocated for the property set.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-07 02:29:23 +01:00
Andy Shevchenko
1d656fb757 device property: improve readability of macros
There is no functional change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-07 02:29:23 +01:00
Heikki Krogerus
a85f420475 device property: helper macros for property entry creation
Marcos for easier creation of build-in property entries.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-07 02:29:22 +01:00
Andy Shevchenko
66586baba5 device property: keep single value inplace
We may save a lot of lines of code and space by keeping single values inside
the struct property_entry. Refactor the implementation to do so.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-07 02:29:22 +01:00
Andy Shevchenko
318a197182 device property: refactor built-in properties support
Instead of using the type and nval fields we will use length (in bytes) of the
value. The sanity check is done in the accessors.

The built-in property accessors are split in the same way such as device tree.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-12-07 02:29:22 +01:00
Russell King
ce657b1cdd component: add support for releasing match data
The component helper treats the void match data pointer as an opaque
object which needs no further management.  When device nodes being
passed, this is not true: the caller should pass its refcount to the
component helper, and there should be a way to drop the refcount when
the matching information is destroyed.

This patch provides a per-match release method in addition to the match
method to solve this issue.  Rather than using component_match_add(),
users should use component_match_add_release() which takes an additional
function pointer for releasing this reference.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-12-07 00:02:05 +00:00
Russell King
fae9e2e07a component: remove old add_components method
Now that drivers create an array of component matches at probe time, we
can retire the old methods.  This involves removing the add_components
master method, and removing component_master_add_child() from public
view.  We also remove component_add_master() as that interface is no
longer useful.

Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-12-07 00:02:00 +00:00
Linus Torvalds
19190f5ea9 SCSI fixes on 20151205
This is quite a bumper crop of fixes: Three from Arnd correcting various build
 issues in some configurations, a lock recursion in qla2xxx.  Two potentially
 exploitable issues in hpsa and mvsas, a potential null deref in st, A revert
 of a bdi registration fix that turned out to cause even more problems, a set
 of fixes to allow people who only defined MPT2SAS to still work after the
 mpt2/mpt3sas merger and a couple of fixes for issues turned up by the hyper-v
 storvsc driver.
 
 Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is quite a bumper crop of fixes: three from Arnd correcting
  various build issues in some configurations, a lock recursion in
  qla2xxx.  Two potentially exploitable issues in hpsa and mvsas, a
  potential null deref in st, a revert of a bdi registration fix that
  turned out to cause even more problems, a set of fixes to allow people
  who only defined MPT2SAS to still work after the mpt2/mpt3sas merger
  and a couple of fixes for issues turned up by the hyper-v storvsc
  driver"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  mpt3sas: fix Kconfig dependency problem for mpt2sas back compatibility
  Revert "scsi: Fix a bdi reregistration race"
  mpt3sas: Add dummy Kconfig option for backwards compatibility
  Fix a memory leak in scsi_host_dev_release()
  block/sd: Fix device-imposed transfer length limits
  scsi_debug: fix prevent_allow+verify regressions
  MAINTAINERS: Add myself as co-maintainer of the SCSI subsystem.
  sd: Make discard granularity match logical block size when LBPRZ=1
  scsi: hpsa: select CONFIG_SCSI_SAS_ATTR
  scsi: advansys needs ISA dma api for ISA support
  scsi_sysfs: protect against double execution of __scsi_remove_device()
  st: fix potential null pointer dereference.
  scsi: report 'INQUIRY result too short' once per host
  advansys: fix big-endian builds
  qla2xxx: Fix rwlock recursion
  hpsa: logical vs bitwise AND typo
  mvsas: don't allow negative timeouts
  mpt3sas: Fix use sas_is_tlr_enabled API before enabling MPI2_SCSIIO_CONTROL_TLR_ON flag
2015-12-06 08:02:25 -08:00
Andi Kleen
bd2a634d9e tracepoints: Move struct tracepoint to new tracepoint-defs.h header
Steven recommended open coding access to tracepoint->key to add
trace points to headers. Unfortunately this is difficult for some
headers (such as x86 asm/msr.h) because including tracepoint.h
includes so many other headers that it causes include loops.
The main problem is the include of linux/rcupdate.h, which
pulls in a lot of other headers. The rcu header is only needed
when actually defining trace points.

Move the struct tracepoint into a separate tracepoint-defs.h
header that can be included without pulling in all of RCU.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1449018060-1742-2-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-12-06 12:56:06 +01:00
Igor Mammedov
8dd3303001 x86/mm: Introduce max_possible_pfn
max_possible_pfn will be used for tracking max possible
PFN for memory that isn't present in E820 table and
could be hotplugged later.

By default max_possible_pfn is initialized with max_pfn,
but later it could be updated with highest PFN of
hotpluggable memory ranges declared in ACPI SRAT table
if any present.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: akataria@vmware.com
Cc: fujita.tomonori@lab.ntt.co.jp
Cc: konrad.wilk@oracle.com
Cc: pbonzini@redhat.com
Cc: revers@redhat.com
Cc: riel@redhat.com
Link: http://lkml.kernel.org/r/1449234426-273049-2-git-send-email-imammedo@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-12-06 12:46:31 +01:00
Marcelo Ricardo Leitner
01ce63c901 sctp: update the netstamp_needed counter when copying sockets
Dmitry Vyukov reported that SCTP was triggering a WARN on socket destroy
related to disabling sock timestamp.

When SCTP accepts an association or peel one off, it copies sock flags
but forgot to call net_enable_timestamp() if a packet timestamping flag
was copied, leading to extra calls to net_disable_timestamp() whenever
such clones were closed.

The fix is to call net_enable_timestamp() whenever we copy a sock with
that flag on, like tcp does.

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05 22:23:22 -05:00
Linus Torvalds
a2dbb7b56f Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "A bunch of change across the board, the main things are some vblank
  fallout in radeon and nouveau required some work, but I think this
  should fix it all.  There is also one drm fix for an oops in vmwgfx
  with how we pass the drm master around.

  The rest is just some amdgpu, i915, imx and rockchip fixes.

  Probably more than I'd like at this point, but hopefully things settle
  down now"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (40 commits)
  drm/amdgpu: Fixup hw vblank counter/ts for new drm_update_vblank_count() (v3)
  drm/radeon: Fixup hw vblank counter/ts for new drm_update_vblank_count() (v2)
  drm/radeon: Retry DDC probing on DVI on failure if we got an HPD interrupt
  drm/amdgpu: add spin lock to protect freed list in vm (v2)
  drm/amdgpu: partially revert "drm/amdgpu: fix VM_CONTEXT*_PAGE_TABLE_END_ADDR" v2
  drm/amdgpu: take a BO reference for the user fence
  drm/amdgpu: take a BO reference in the display code
  drm/amdgpu: set snooped flags only on system addresses v2
  drm/nouveau: Fix pre-nv50 pageflip events (v4)
  drm: Fix an unwanted master inheritance v2
  drm/amdgpu: fix race condition in amd_sched_entity_push_job
  drm/amdgpu: add err check for pin userptr
  drm/i915: take a power domain reference while checking the HDMI live status
  drm/i915: add MISSING_CASE to a few port/aux power domain helpers
  drm/i915/ddi: fix intel_display_port_aux_power_domain() after HDMI detect
  drm/i915: Introduce a gmbus power domain
  drm/i915: Clean up AUX power domain handling
  drm/rockchip: Use CRTC vblank event interface
  drm/rockchip: Fix module autoload for OF platform driver
  drm/rockchip: vop: fix window origin calculation
  ...
2015-12-05 16:06:30 -08:00
Jiri Pirko
b618aaa91b net: constify netif_is_* helpers net_device param
As suggested by Eric, these helpers should have const dev param.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05 18:16:27 -05:00
Jiri Benc
c5fb8caaf9 vxlan: fix incorrect RCO bit in VXLAN header
Commit 3511494ce2 ("vxlan: Group Policy extension") changed definition of
VXLAN_HF_RCO from 0x00200000 to BIT(24). This is obviously incorrect. It's
also in violation with the RFC draft.

Fixes: 3511494ce2 ("vxlan: Group Policy extension")
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Tom Herbert <therbert@google.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05 18:15:29 -05:00
Andrew Lunn
2f8364a291 WAN: HDLC: Call notifiers before and after changing device type
An HDLC device can change type when the protocol driver is changed.
Calling the notifier change allows potential users of the interface
know about this planned change, and even block it. After the change
has occurred, send a second notification to users can evaluate the new
device type etc.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-05 17:41:42 -05:00
Jonathan Cameron
8d6c16dd72 iio:configfs: Introduce iio/configfs.h to provide a location for the configfs_subsystem
This exported element needs to be accesible to all drivers using configfs
within IIO.  Previously it was in the sw_trig.h file which only convered one
such usecase.  This also fixes a sparse warning as it is now in a header
that makes sense to include from industrialio-configfs.c

Signed-off-by: Jonathan Cameron < jic23@kernel.org>
2015-12-05 16:25:30 +00:00
Lars-Peter Clausen
b1d6ab1aa8 dmaengine: Add might_sleep() to dmaengine_synchronize()
Implementations of dmaengine_synchronize() are allowed to sleep, hence the
function must not be called to from atomic context. Add might_sleep() to
dmaengine_synchronize() to make it easier to detect non-compliant callers.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-12-05 13:43:30 +05:30
Andrew F. Davis
703df6c097 power: bq27xxx_battery: Reorganize I2C into a module
Separate out I2C functionality into a module. This fixes several small
issues and simplifies the driver initialization.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-12-05 02:06:51 +01:00
Jiri Kosina
fc284d6318 Merge branch 'from-rusty/modules-next' into for-4.5/core
As agreed with Rusty, we're taking a current module-next pile through
livepatching.git, as it contains solely patches that are pre-requisity
for module page protection cleanups in livepatching. Rusty will be
restarting module-next from scratch.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-12-04 22:48:30 +01:00
Rusty Russell
85c898db63 module: clean up RO/NX handling.
Modules have three sections: text, rodata and writable data.  The code
handled the case where these overlapped, however they never can:
debug_align() ensures they are always page-aligned.

This is why we got away with manually traversing the pages in
set_all_modules_text_rw() without rounding.

We create three helper functions: frob_text(), frob_rodata() and
frob_writable_data().  We then call these explicitly at every point,
so it's clear what we're doing.

We also expose module_enable_ro() and module_disable_ro() for
livepatch to use.

Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-12-04 22:46:26 +01:00
Rusty Russell
7523e4dc50 module: use a structure to encapsulate layout.
Makes it easier to handle init vs core cleanly, though the change is
fairly invasive across random architectures.

It simplifies the rbtree code immediately, however, while keeping the
core data together in the same cachline (now iff the rbtree code is
enabled).

Acked-by: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-12-04 22:46:25 +01:00
Paul E. McKenney
2f073848c3 list: Use WRITE_ONCE() when initializing list_head structures
Code that does lockless emptiness testing of non-RCU lists is relying
on INIT_LIST_HEAD() to write the list head's ->next pointer atomically,
particularly when INIT_LIST_HEAD() is invoked from list_del_init().
This commit therefore adds WRITE_ONCE() to this function's pointer stores
that could affect the head's ->next pointer.

Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-12-04 12:34:33 -08:00
Petko Manolov
7d86dccf28 list: Introduces generic list_splice_tail_init_rcu()
The list_splice_init_rcu() can be used as a stack onto which full lists
are pushed, but queue-like behavior is now needed by some security
policies.  This requires a list_splice_tail_init_rcu().

This commit therefore supplies a list_splice_tail_init_rcu() by
pulling code common it and to list_splice_init_rcu() into a new
__list_splice_init_rcu() function.  This new function is based on the
existing list_splice_init_rcu() implementation.

Signed-off-by: Petko Manolov <petkan@mip-labs.com>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-12-04 12:34:32 -08:00
Paul E. McKenney
46a5d164db rcu: Stop disabling interrupts in scheduler fastpaths
We need the scheduler's fastpaths to be, well, fast, and unnecessarily
disabling and re-enabling interrupts is not necessarily consistent with
this goal.  Especially given that there are regions of the scheduler that
already have interrupts disabled.

This commit therefore moves the call to rcu_note_context_switch()
to one of the interrupts-disabled regions of the scheduler, and
removes the now-redundant disabling and re-enabling of interrupts from
rcu_note_context_switch() and the functions it calls.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
[ paulmck: Shift rcu_note_context_switch() to avoid deadlock, as suggested
  by Peter Zijlstra. ]
2015-12-04 12:27:31 -08:00
Paul E. McKenney
5a9be7c628 rcu: Add rcu_normal kernel parameter to suppress expediting
Although expedited grace periods can be quite useful, and although their
OS jitter has been greatly reduced, they can still pose problems for
extreme real-time workloads.  This commit therefore adds a rcu_normal
kernel boot parameter (which can also be manipulated via sysfs)
to suppress expedited grace periods, that is, to treat requests for
expedited grace periods as if they were requests for normal grace periods.
If both rcu_expedited and rcu_normal are specified, rcu_normal wins.
This means that if you are relying on expedited grace periods to speed up
boot, you will want to specify rcu_expedited on the kernel command line,
and then specify rcu_normal via sysfs once boot completes.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-12-04 12:26:53 -08:00
Herbert Xu
3cf92222a3 rhashtable: Prevent spurious EBUSY errors on insertion
Thomas and Phil observed that under stress rhashtable insertion
sometimes failed with EBUSY, even though this error should only
ever been seen when we're under attack and our hash chain length
has grown to an unacceptable level, even after a rehash.

It turns out that the logic for detecting whether there is an
existing rehash is faulty.  In particular, when two threads both
try to grow the same table at the same time, one of them may see
the newly grown table and thus erroneously conclude that it had
been rehashed.  This is what leads to the EBUSY error.

This patch fixes this by remembering the current last table we
used during insertion so that rhashtable_insert_rehash can detect
when another thread has also done a resize/rehash.  When this is
detected we will give up our resize/rehash and simply retry the
insertion with the new table.

Reported-by: Thomas Graf <tgraf@suug.ch>
Reported-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-04 14:38:26 -05:00
Mika Kuoppala
15620206ae drm/i915/skl: Add SKL GT4 PCI IDs
Add Skylake Intel Graphics GT4 PCI IDs

v2: Rebase

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446811876-303-1-git-send-email-mika.kuoppala@intel.com
2015-12-04 19:03:50 +00:00
Linus Torvalds
8cdef96980 sound fixes for 4.4-rc4
This time we've got a larger number of updates, mainly from ASoC
 world.  The only significant LOCs found here are for Realtek codecs,
 where most of changes are quite systematic replacements.
 
 There are also a few fixes in ASoC core side: one is the PM call order
 fix to ensure the DPAM resume working properly.  Another is the proper
 cleanup call after freeing DAPM widgets, and the correction of the
 wrong callback set in topology API.
 
 The rest are a wide range of driver-specific small fixes, including
 HD-audio.
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Merge tag 'sound-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This time we've got a larger number of updates, mainly from ASoC
  world.  The only significant LOCs found here are for Realtek codecs,
  where most of changes are quite systematic replacements.

  There are also a few fixes in ASoC core side: one is the PM call order
  fix to ensure the DPAM resume working properly.  Another is the proper
  cleanup call after freeing DAPM widgets, and the correction of the
  wrong callback set in topology API.

  The rest are a wide range of driver-specific small fixes, including
  HD-audio"

* tag 'sound-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits)
  ALSA: hda - Add Conexant CX8200 (14f1:2008) codec entry
  ALSA: hda - Correct codec names for 14f1:50f1 and 14f1:50f3
  ALSA: hda - Skip ELD notification during system suspend
  ASoC: core: Change power state before rechecking endpoint
  ASoC: fix kernel-doc warnings in sound/soc/soc-ops.c
  ASoC: rt5645: Add dmi_system_id "Google Terra"
  ASoC: rockchip: Fix incorrect VDW value for 24 bit
  ASoC: fsl: clarify ac97 dependency
  ASoC: Intel: Skylake: fix memory leak
  ASoC: davinci-mcasp: Fix master capture only mode
  ASoC: es8328: Fix shifts for mixer switches
  ASoC: rt5645: Add dmi_system_id "Google Wizpig"
  ASoC: sti: set player private data
  ASoC: sti: rename ST proprietary DT properties
  ASoC: sti: remove wrong error message
  ASoC: Intel: Skylake: Add I2C depends for SKL machine
  ASoC: topology: fix info callback for TLV byte control
  ASoC: rt5670: fix wrong bit def for pll src
  ASoC: nau8825: add pm function
  ASoC: rt5645: Add struct dmi_system_id "Google Edgar" for Chrome OS
  ...
2015-12-04 09:16:26 -08:00
Linus Torvalds
b1007e73ae Power management and ACPI fixes for v4.4-rc4
- Fix a regression in the ACPI PCI host bridge initialization code
    introduced by the recent consolidation of the host bridge handling
    on x86 and ia64 that forgot to take one special piece of code
    related to NUMA on x86 into account (Liu Jiang).
 
  - Improve the Kconfig help description of the new ACPI AML debugger
    support option to avoid possible confusion (Peter Zijlstra).
 
  - Remove a piece of code in the generic power domains framework
    that should have been removed by one of the recent commits
    modifying that code (Ulf Hansson).
 
  - Reduce the log level of a PCI PM message that generates a lot
    of false-positive log noise for some drivers and improve the
    message itself while at it (Imre Deak).
 
  - Fix the OF-based domain lookup code in the generic power domains
    framework to make it drop references to DT nodes correctly (Eric
    Anholt).
 
  - Prevent the cpufreq core from setting the policy back to the
    default after a CPU offline/online cycle for cpufreq drivers
    providing the ->setpolicy callback (Srinivas Pandruvada).
 
  - Fix a build problem for CONFIG_ACPI unset in the device
    properties framework (Hanjun Guo).
 
  - Fix a stale file path in the ACPI backlight driver entry in
    MAINTAINERS (Dan Carpenter).
 
 /
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Merge tag 'pm+acpi-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI fixes from Rafael Wysocki:
 "These fix a recent regression in the ACPI PCI host bridge
  initialization code, clean up some recent changes (generic power
  domains framework, ACPI AML debugger support), fix three older but
  annoying bugs (PCI power management.  generic power domains framework,
  cpufreq) and a build problem (device properties framework), and update
  a stale MAINTAINERS entry (ACPI backlight driver).

  Specifics:

   - Fix a regression in the ACPI PCI host bridge initialization code
     introduced by the recent consolidation of the host bridge handling
     on x86 and ia64 that forgot to take one special piece of code
     related to NUMA on x86 into account (Liu Jiang).

   - Improve the Kconfig help description of the new ACPI AML debugger
     support option to avoid possible confusion (Peter Zijlstra).

   - Remove a piece of code in the generic power domains framework that
     should have been removed by one of the recent commits modifying
     that code (Ulf Hansson).

   - Reduce the log level of a PCI PM message that generates a lot of
     false-positive log noise for some drivers and improve the message
     itself while at it (Imre Deak).

   - Fix the OF-based domain lookup code in the generic power domains
     framework to make it drop references to DT nodes correctly (Eric
     Anholt).

   - Prevent the cpufreq core from setting the policy back to the
     default after a CPU offline/online cycle for cpufreq drivers
     providing the ->setpolicy callback (Srinivas Pandruvada).

   - Fix a build problem for CONFIG_ACPI unset in the device properties
     framework (Hanjun Guo).

   - Fix a stale file path in the ACPI backlight driver entry in
     MAINTAINERS (Dan Carpenter)"

* tag 'pm+acpi-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / Domains: Fix bad of_node_put() in failure paths of genpd_dev_pm_attach()
  cpufreq: use last policy after online for drivers with ->setpolicy
  PCI / PM: Tune down retryable runtime suspend error messages
  PM / Domains: Validate cases of a non-bound driver in genpd governor
  MAINTAINERS: ACPI / video: update a file name in drivers/acpi/
  ACPI / property: fix compile error for acpi_node_get_property_reference() when CONFIG_ACPI=n
  x86/PCI/ACPI: Fix regression caused by commit 4d6b4e69a2
  ACPI: Better describe ACPI_DEBUGGER
2015-12-04 08:59:10 -08:00
Alex Williamson
ae5515d663 Revert: "vfio: Include No-IOMMU mode"
Revert commit 033291eccb ("vfio: Include No-IOMMU mode") due to lack
of a user.  This was originally intended to fill a need for the DPDK
driver, but uptake has been slow so rather than support an unproven
kernel interface revert it and revisit when userspace catches up.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-12-04 08:38:42 -07:00
Vidyullatha Kanchanapally
91d3ab4673 cfg80211: Add support for aborting an ongoing scan
Implement new functionality for aborting an ongoing scan.

Add NL80211_CMD_ABORT_SCAN to the nl80211 interface. After
aborting the scan, driver shall provide the scan status by
calling cfg80211_scan_done().

Reviewed-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Vidyullatha Kanchanapally <vkanchan@qti.qualcomm.com>
Signed-off-by: Sunil Dutt <usdutt@qti.qualcomm.com>
[change command to take wdev instead of netdev so that it
 can be used on p2p-device scans]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04 14:43:32 +01:00
Janusz.Dziedzic@tieto.com
b115b97299 mac80211: add new IEEE80211_VIF_GET_NOA_UPDATE flag
Add new VIF flag, that will allow get NOA update
notification when driver will request this, even
this is not pure P2P vif (eg. STA vif).

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04 14:43:32 +01:00
Eliad Peller
ef044763a3 mac80211: add atomic uploaded keys iterator
add ieee80211_iter_keys_rcu() to iterate over uploaded
keys in atomic context (when rcu is locked)

The station removal code removes the keys only after
calling synchronize_net(), so it's not safe to iterate
the keys at this point (and postponing the actual key
deletion with call_rcu() might result in some
badly-ordered ops calls).

Add a flag to indicate a station is being removed,
and skip the configured keys if it's set.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04 14:43:32 +01:00
Emmanuel Grumbach
0ead2510f8 mac80211: allow the driver to send EOSP when needed
This can happen when the driver needs to send less frames
than expected and then needs to close the SP.
Mac80211 still needs to set the more_data properly based
on its buffer state (ps_tx_buffer and buffered frames on
other TIDs).
To that end, refactor the code that delivers frames upon
uAPSD trigger frames to be able to get only the more_data
bit without actually delivering those frames in case the
driver is just asking to set a NDP with EOSP and MORE_DATA
bit properly set.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04 14:43:32 +01:00
Luca Coelho
cf595922b9 nl80211: clarify NL80211_ATTR_SCHED_SCAN_DELAY usage with net-detect
In this attribute's documentation, it was not clear whether the delay
started counting when WoWLAN net-detect was enabled or when the system
was suspended.  The correct answer is that it starts when the system
suspends (which is when, in practice, the scan is scheduled).  Clarify
that in the nl80211.h documentation.

Suggested-by: Samuel Tan <samueltan@google.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04 14:43:32 +01:00
Johannes Berg
0483eeac59 cfg80211: replace ieee80211_ie_split() with an inline
The function is a very simple wrapper around another one,
just adds a few default parameters, so replace it with a
static inline instead of using EXPORT_SYMBOL, reducing
the module size slightly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04 14:43:32 +01:00
Johannes Berg
3110489117 mac80211: allow driver to prevent two stations w/ same address
Some devices or drivers cannot deal with having the same station
address for different virtual interfaces, say as a client to two
virtual AP interfaces. Rather than requiring each driver with a
limitation like that to enforce it, add a hardware flag for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04 14:43:32 +01:00
Johannes Berg
d9d3ac7afd Merge remote-tracking branch 'mac80211/master' into HEAD
I want to get the full off-channel bugfix since later code depends on
it, as well as the AP client state change so I can revert it correctly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-12-04 14:43:05 +01:00
Rafael J. Wysocki
d441fe25e7 Merge branches 'pm-domains' and 'pm-cpufreq'
* pm-domains:
  PM / Domains: Fix bad of_node_put() in failure paths of genpd_dev_pm_attach()
  PM / Domains: Validate cases of a non-bound driver in genpd governor

* pm-cpufreq:
  cpufreq: use last policy after online for drivers with ->setpolicy
2015-12-04 14:01:42 +01:00
Rafael J. Wysocki
3e5050e60e Merge branches 'acpica', 'acpi-video' and 'device-properties'
* acpica:
  ACPI: Better describe ACPI_DEBUGGER

* acpi-video:
  MAINTAINERS: ACPI / video: update a file name in drivers/acpi/

* device-properties:
  ACPI / property: fix compile error for acpi_node_get_property_reference() when CONFIG_ACPI=n
2015-12-04 14:01:17 +01:00