Commit Graph

24009 Commits

Author SHA1 Message Date
Linus Torvalds
0f0836b7eb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull livepatching updates from Jiri Kosina:

 - RO/NX attribute fixes for patch module relocations from Josh
   Poimboeuf.  As part of this effort, module.c has been cleaned up as
   well and livepatching is piggy-backing on this cleanup.  Rusty is OK
   with this whole lot going through livepatching tree.

 - symbol disambiguation support from Chris J Arges.  That series is
   also

        Reviewed-by: Miroslav Benes <mbenes@suse.cz>

   but this came in only after I've alredy pushed out.  Didn't want to
   rebase because of that, hence I am mentioning it here.

 - symbol lookup fix from Miroslav Benes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
  livepatch: Cleanup module page permission changes
  module: keep percpu symbols in module's symtab
  module: clean up RO/NX handling.
  module: use a structure to encapsulate layout.
  gcov: use within_module() helper.
  module: Use the same logic for setting and unsetting RO/NX
  livepatch: function,sympos scheme in livepatch sysfs directory
  livepatch: add sympos as disambiguator field to klp_reloc
  livepatch: add old_sympos as disambiguator field to klp_func
2016-01-14 16:38:02 -08:00
Linus Torvalds
63f729cb4a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fix from Al Viro:
 "Don't put symlink bodies in pagecache into highmem"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  Make sure that highmem pages are not added to symlink page cache
2016-01-14 16:03:57 -08:00
Rodrigo Freire
0bc126d460 Documentation/filesystems: describe the shared memory usage/accounting
The Shared Memory accounting support is present in Kernel since commit
4b02108ac1 ("mm: oom analysis: add shmem vmstat") and in userland
free(1) since 2014.  This patch updates the Documentation to reflect
this change.

Signed-off-by: Rodrigo Freire <rfreire@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-14 16:00:49 -08:00
Johannes Weiner
f7e1cb6ec5 mm: memcontrol: account socket memory in unified hierarchy memory controller
Socket memory can be a significant share of overall memory consumed by
common workloads.  In order to provide reasonable resource isolation in
the unified hierarchy, this type of memory needs to be included in the
tracking/accounting of a cgroup under active memory resource control.

Overhead is only incurred when a non-root control group is created AND
the memory controller is instructed to track and account the memory
footprint of that group.  cgroup.memory=nosocket can be specified on the
boot commandline to override any runtime configuration and forcibly
exclude socket memory from active memory resource control.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-14 16:00:49 -08:00
Daniel Cashman
d07e22597d mm: mmap: add new /proc tunable for mmap_base ASLR
Address Space Layout Randomization (ASLR) provides a barrier to
exploitation of user-space processes in the presence of security
vulnerabilities by making it more difficult to find desired code/data
which could help an attack.  This is done by adding a random offset to
the location of regions in the process address space, with a greater
range of potential offset values corresponding to better protection/a
larger search-space for brute force, but also to greater potential for
fragmentation.

The offset added to the mmap_base address, which provides the basis for
the majority of the mappings for a process, is set once on process exec
in arch_pick_mmap_layout() and is done via hard-coded per-arch values,
which reflect, hopefully, the best compromise for all systems.  The
trade-off between increased entropy in the offset value generation and
the corresponding increased variability in address space fragmentation
is not absolute, however, and some platforms may tolerate higher amounts
of entropy.  This patch introduces both new Kconfig values and a sysctl
interface which may be used to change the amount of entropy used for
offset generation on a system.

The direct motivation for this change was in response to the
libstagefright vulnerabilities that affected Android, specifically to
information provided by Google's project zero at:

  http://googleprojectzero.blogspot.com/2015/09/stagefrightened.html

The attack presented therein, by Google's project zero, specifically
targeted the limited randomness used to generate the offset added to the
mmap_base address in order to craft a brute-force-based attack.
Concretely, the attack was against the mediaserver process, which was
limited to respawning every 5 seconds, on an arm device.  The hard-coded
8 bits used resulted in an average expected success rate of defeating
the mmap ASLR after just over 10 minutes (128 tries at 5 seconds a
piece).  With this patch, and an accompanying increase in the entropy
value to 16 bits, the same attack would take an average expected time of
over 45 hours (32768 tries), which makes it both less feasible and more
likely to be noticed.

The introduced Kconfig and sysctl options are limited by per-arch
minimum and maximum values, the minimum of which was chosen to match the
current hard-coded value and the maximum of which was chosen so as to
give the greatest flexibility without generating an invalid mmap_base
address, generally a 3-4 bits less than the number of bits in the
user-space accessible virtual address space.

When decided whether or not to change the default value, a system
developer should consider that mmap_base address could be placed
anywhere up to 2^(value) bits away from the non-randomized location,
which would introduce variable-sized areas above and below the mmap_base
address such that the maximum vm_area_struct size may be reduced,
preventing very large allocations.

This patch (of 4):

ASLR only uses as few as 8 bits to generate the random offset for the
mmap base address on 32 bit architectures.  This value was chosen to
prevent a poorly chosen value from dividing the address space in such a
way as to prevent large allocations.  This may not be an issue on all
platforms.  Allow the specification of a minimum number of bits so that
platforms desiring greater ASLR protection may determine where to place
the trade-off.

Signed-off-by: Daniel Cashman <dcashman@google.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Nick Kralevich <nnk@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Hector Marco-Gisbert <hecmargi@upv.es>
Cc: Borislav Petkov <bp@suse.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-14 16:00:49 -08:00
Jerome Marchand
8cee852ec5 mm, procfs: breakdown RSS for anon, shmem and file in /proc/pid/status
There are several shortcomings with the accounting of shared memory
(SysV shm, shared anonymous mapping, mapping of a tmpfs file).  The
values in /proc/<pid>/status and <...>/statm don't allow to distinguish
between shmem memory and a shared mapping to a regular file, even though
theirs implication on memory usage are quite different: during reclaim,
file mapping can be dropped or written back on disk, while shmem needs a
place in swap.

Also, to distinguish the memory occupied by anonymous and file mappings,
one has to read the /proc/pid/statm file, which has a field for the file
mappings (again, including shmem) and total memory occupied by these
mappings (i.e.  equivalent to VmRSS in the <...>/status file.  Getting
the value for anonymous mappings only is thus not exactly user-friendly
(the statm file is intended to be rather efficiently machine-readable).

To address both of these shortcomings, this patch adds a breakdown of
VmRSS in /proc/<pid>/status via new fields RssAnon, RssFile and
RssShmem, making use of the previous preparatory patch.  These fields
tell the user the memory occupied by private anonymous pages, mapped
regular files and shmem, respectively.  Other existing fields in /status
and /statm files are left without change.  The /statm file can be
extended in the future, if there's a need for that.

Example (part of) /proc/pid/status output including the new Rss* fields:

VmPeak:  2001008 kB
VmSize:  2001004 kB
VmLck:         0 kB
VmPin:         0 kB
VmHWM:      5108 kB
VmRSS:      5108 kB
RssAnon:              92 kB
RssFile:            1324 kB
RssShmem:           3692 kB
VmData:      192 kB
VmStk:       136 kB
VmExe:         4 kB
VmLib:      1784 kB
VmPTE:      3928 kB
VmPMD:        20 kB
VmSwap:        0 kB
HugetlbPages:          0 kB

[vbabka@suse.cz: forward-porting, tweak changelog]
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-14 16:00:49 -08:00
Vlastimil Babka
c261e7d94f mm, proc: account for shmem swap in /proc/pid/smaps
Currently, /proc/pid/smaps will always show "Swap: 0 kB" for
shmem-backed mappings, even if the mapped portion does contain pages
that were swapped out.  This is because unlike private anonymous
mappings, shmem does not change pte to swap entry, but pte_none when
swapping the page out.  In the smaps page walk, such page thus looks
like it was never faulted in.

This patch changes smaps_pte_entry() to determine the swap status for
such pte_none entries for shmem mappings, similarly to how
mincore_page() does it.  Swapped out shmem pages are thus accounted for.
For private mappings of tmpfs files that COWed some of the pages, swaped
out status of the original shmem pages is naturally ignored.  If some of
the private copies was also swapped out, they are accounted via their
page table swap entries, so the resulting reported swap usage is then a
sum of both swapped out private copies, and swapped out shmem pages that
were not COWed.  No double accounting can thus happen.

The accounting is arguably still not as precise as for private anonymous
mappings, since now we will count also pages that the process in
question never accessed, but another process populated them and then let
them become swapped out.  I believe it is still less confusing and
subtle than not showing any swap usage by shmem mappings at all.
Swapped out counter might of interest of users who would like to prevent
from future swapins during performance critical operation and pre-fault
them at their convenience.  Especially for larger swapped out regions
the cost of swapin is much higher than a fresh page allocation.  So a
differentiation between pte_none vs.  swapped out is important for those
usecases.

One downside of this patch is that it makes /proc/pid/smaps more
expensive for shmem mappings, as we consult the radix tree for each
pte_none entry, so the overal complexity is O(n*log(n)).  I have
measured this on a process that creates a 2GB mapping and dirties single
pages with a stride of 2MB, and time how long does it take to cat
/proc/pid/smaps of this process 100 times.

Private anonymous mapping:

real    0m0.949s
user    0m0.116s
sys     0m0.348s

Mapping of a /dev/shm/file:

real    0m3.831s
user    0m0.180s
sys     0m3.212s

The difference is rather substantial, so the next patch will reduce the
cost for shared or read-only mappings.

In a less controlled experiment, I've gathered pids of processes on my
desktop that have either '/dev/shm/*' or 'SYSV*' in smaps.  This
included the Chrome browser and some KDE processes.  Again, I've run cat
/proc/pid/smaps on each 100 times.

Before this patch:

real    0m9.050s
user    0m0.518s
sys     0m8.066s

After this patch:

real    0m9.221s
user    0m0.541s
sys     0m8.187s

This suggests low impact on average systems.

Note that this patch doesn't attempt to adjust the SwapPss field for
shmem mappings, which would need extra work to determine who else could
have the pages mapped.  Thus the value stays zero except for COWed
swapped out pages in a shmem mapping, which are accounted as usual.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-14 16:00:49 -08:00
Vlastimil Babka
bf9683d699 mm, documentation: clarify /proc/pid/status VmSwap limitations for shmem
This series is based on Jerome Marchand's [1] so let me quote the first
paragraph from there:

There are several shortcomings with the accounting of shared memory
(sysV shm, shared anonymous mapping, mapping to a tmpfs file).  The
values in /proc/<pid>/status and statm don't allow to distinguish
between shmem memory and a shared mapping to a regular file, even though
their implications on memory usage are quite different: at reclaim, file
mapping can be dropped or written back on disk while shmem needs a place
in swap.  As for shmem pages that are swapped-out or in swap cache, they
aren't accounted at all.

The original motivation for myself is that a customer found (IMHO
rightfully) confusing that e.g.  top output for process swap usage is
unreliable with respect to swapped out shmem pages, which are not
accounted for.

The fundamental difference between private anonymous and shmem pages is
that the latter has PTE's converted to pte_none, and not swapents.  As
such, they are not accounted to the number of swapents visible e.g.  in
/proc/pid/status VmSwap row.  It might be theoretically possible to use
swapents when swapping out shmem (without extra cost, as one has to
change all mappers anyway), and on swap in only convert the swapent for
the faulting process, leaving swapents in other processes until they
also fault (so again no extra cost).  But I don't know how many
assumptions this would break, and it would be too disruptive change for
a relatively small benefit.

Instead, my approach is to document the limitation of VmSwap, and
provide means to determine the swap usage for shmem areas for those who
are interested and willing to pay the price, using /proc/pid/smaps.
Because outside of ipcs, I don't think it's possible to currently to
determine the usage at all.  The previous patchset [1] did introduce new
shmem-specific fields into smaps output, and functions to determine the
values.  I take a simpler approach, noting that smaps output already has
a "Swap: X kB" line, where currently X == 0 always for shmem areas.  I
think we can just consider this a bug and provide the proper value by
consulting the radix tree, as e.g.  mincore_page() does.  In the patch
changelog I explain why this is also not perfect (and cannot be without
swapents), but still arguably much better than showing a 0.

The last two patches are adapted from Jerome's patchset and provide a
VmRSS breakdown to RssAnon, RssFile and RssShm in /proc/pid/status.
Hugh noted that this is a welcome addition, and I agree that it might
help e.g.  debugging process memory usage at albeit non-zero, but still
rather low cost of extra per-mm counter and some page flag checks.

[1] http://lwn.net/Articles/611966/

This patch (of 6):

The documentation for /proc/pid/status does not mention that the value
of VmSwap counts only swapped out anonymous private pages, and not
swapped out pages of the underlying shmem objects (for shmem mappings).
This is not obvious, so document this limitation.

Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-14 16:00:49 -08:00
Al Viro
e8ecde25f5 Make sure that highmem pages are not added to symlink page cache
inode_nohighmem() is sufficient to make sure that page_get_link()
won't try to allocate a highmem page.  Moreover, it is sufficient
to make sure that page_symlink/__page_symlink won't do the same
thing.  However, any filesystem that manually preseeds the symlink's
page cache upon symlink(2) needs to make sure that the page it
inserts there won't be a highmem one.

Fortunately, only nfs and shmem have run afoul of that...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-14 17:56:54 -05:00
Leo Yan
ec3fc58b1e thermal: add description for integral_cutoff unit
Add more explicitly description for unit of integral_cutoff which used
by power allocator governor.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-01-14 13:29:08 -07:00
SeongJae Park
ceec86ec06 Documentation: update libhugetlbfs site url
The site for libhugetlbfs has moved from sourceforge to github. This
commit updates the old url.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-01-14 13:27:48 -07:00
Borislav Petkov
afd8c08446 Documentation: Explain pci=conf1,conf2 more verbosely
People complained that setting the PCI config space access mechanism
through "pci=conf1" or "pci=conf2" on the command line is not really
documented. Yeah, can you blame them? Look at what we have now.

So try to improve the situation a bit by explaining what those "conf1"
and "conf2" things actually mean.

See http://wiki.osdev.org/PCI for more info.

Suggested-by: Eric Morton <Eric.Morton@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
[jc: Added the above URL to the document too]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-01-14 13:24:54 -07:00
Linus Torvalds
32250e4a5f Merge branch 'i2c/for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "Quite some driver updates:
   - piix4 can now handle multiplexed adapters
   - brcmstb, xlr, eg20t, designware drivers support more SoCs
   - emev2 gained i2c slave support
   - img-scb and rcar got bigger refactoring to remove issues
   - lots of common driver updates

  i2c core changes:
   - new quirk flag when an adapter does not support clock stretching,
     so clients can be configured to avoid that if possible
   - added a helper function to retrieve timing parameters from firmware
     (with rcar being the first user)
   - "multi-master" DT binding added so drivers can adapt to this
     setting (like disabling PM to keep arbitration working)
   - RuntimePM for the logical adapter device is now always enabled by
     the core to ensure propagation from childs to the parent (the HW
     device)
   - new macro builtin_i2c_driver to reduce boilerplate"

* 'i2c/for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (70 commits)
  i2c: create builtin_i2c_driver to avoid registration boilerplate
  i2c: imx: fix i2c resource leak with dma transfer
  dt-bindings: i2c: eeprom: add another EEPROM device
  dt-bindings: move I2C eeprom descriptions to the proper file
  i2c: designware: Do not require clock when SSCN and FFCN are provided
  DT: i2c: trivial-devices: Add Epson RX8010 and MPL3115
  i2c: s3c2410: remove superfluous runtime PM calls
  i2c: always enable RuntimePM for the adapter device
  i2c: designware: retry transfer on transient failure
  i2c: ibm_iic: rename i2c_timings struct due to clash with generic version
  i2c: designware: Add support for AMD Seattle I2C
  i2c: imx: Remove unneeded comments
  i2c: st: use to_platform_device()
  i2c: designware: use to_pci_dev()
  i2c: brcmstb: Adding support for CM and DSL SoCs
  i2c: mediatek: fix i2c multi transfer issue in high speed mode
  i2c: imx: improve code readability
  i2c: imx: Improve message log when DMA is not used
  i2c: imx: add runtime pm support to improve the performance
  i2c: imx: init bus recovery info before adding i2c adapter
  ...
2016-01-14 11:25:37 -08:00
Linus Torvalds
5339f9d4c2 DeviceTree updates for 4.5:
- Rework and export the changeset API to make it available to users
 other than DT overlays
 
 - ARM secure devices binding
 
 - OCTEON USB binding
 
 - Clean-up of various SRAM binding docs
 
 - Various other binding doc updates
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Merge tag 'devicetree-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - Rework and export the changeset API to make it available to users
   other than DT overlays

 - ARM secure devices binding

 - OCTEON USB binding

 - Clean-up of various SRAM binding docs

 - Various other binding doc updates

* tag 'devicetree-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (21 commits)
  drivers/of: Export OF changeset functions
  Fix documentation for adp1653 DT
  ARM: psci: Fix indentation in DT bindings
  of/platform: export of_default_bus_match_table
  of/unittest: Show broken behaviour in the platform bus
  of: fix declaration of of_io_request_and_map
  of/address: replace printk(KERN_ERR ...) with pr_err(...)
  of/irq: optimize device node matching loop in of_irq_init()
  dt-bindings: tda998x: Document the required 'port' node.
  net/macb: bindings doc: Merge cdns-emac to macb
  dt-bindings: Misc fix for the ATH79 DDR controllers
  dt-bindings: Misc fix for the ATH79 MISC interrupt controllers
  Documentation: dt: Add bindings for Secure-only devices
  dt-bindings: ARM: add arm,cortex-a72 compatible string
  ASoC: Atmel: ClassD: add GCK's parent clock in DT binding
  DT: add Olimex to vendor prefixes
  Documentation: fsl-quadspi: Add fsl,ls1021-qspi compatible string
  Documentation/devicetree: document OCTEON USB bindings
  usb: misc: usb3503: Describe better how to bind clock to the hub
  dt-bindings: Consolidate SRAM bindings from all vendors
  ...
2016-01-14 11:13:28 -08:00
Linus Torvalds
cf8d7e3850 - New Device Support
- Add support for s2mps15; sec-core
    - Add support for Lewisburg; lpc_ich
    - Add support for cs47l24 and wm1831; arizona
  - New Functionality
    - Allow user to select syscon register width; syscon
  - Fix-ups
    - Lots of Checkpatch fixes
    - Rename -pmic/-regulator; s2mps11
    - Build driver components into a single module; wm8994-*
    - Better handing of IRQ during suspend/resume; as3722
    - Constify things; da903x
    - Remove unused code; ab8500-core
    - Improve error handing; qcom_rpm
    - Simplify code: wm831x-otp, sta2x11-mfd
    - Improve locking; cros_ec_spi
    - Fix incorrect DT binding filename reference; arizona, palmas,
                                                   snps-dwapb-gpio, wm8994
  - Bug Fixes
    - Fix broken SYSFS 'show ID' call; wm831x-otp
    - Protect reads from non-existent registers; qcom-spmi-pmic
    - Repair build warnings; as3722
    - Fix IRQ request ordering; arizona-irq
    - Ensure return value is boolean; ucb1x00-core, tps65010, tc6393xb,
                                      htc-egpio, dm355evm_msp, asic3,
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Merge tag 'mfd-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Device Support:
   - Add support for s2mps15; sec-core
   - Add support for Lewisburg; lpc_ich
   - Add support for cs47l24 and wm1831; arizona

  New Functionality:
   - Allow user to select syscon register width; syscon

  Fix-ups:
   - Lots of Checkpatch fixes
   - Rename -pmic/-regulator; s2mps11
   - Build driver components into a single module; wm8994-*
   - Better handing of IRQ during suspend/resume; as3722
   - Constify things; da903x
   - Remove unused code; ab8500-core
   - Improve error handing; qcom_rpm
   - Simplify code: wm831x-otp, sta2x11-mfd
   - Improve locking; cros_ec_spi
   - Fix incorrect DT binding filename reference; arizona, palmas,
     snps-dwapb-gpio, wm8994

  Bug Fixes:
   - Fix broken SYSFS 'show ID' call; wm831x-otp
   - Protect reads from non-existent registers; qcom-spmi-pmic
   - Repair build warnings; as3722
   - Fix IRQ request ordering; arizona-irq
   - Ensure return value is boolean; ucb1x00-core, tps65010, tc6393xb,
     htc-egpio, dm355evm_msp, asic3"

* tag 'mfd-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (58 commits)
  mfd: davinci_voicecodec: Remove pointless 'out of memory' error message
  mfd: da9052-irq: Fix trivial 'space before comma' error
  mfd: da9052-i2c: Fix tabbing/whitespace issue
  mfd: da903x: Fix white space and split string issues
  mfd: cs5535-mfd: Add missing line spacing and make local array static
  mfd: cros_ec_spi: Repair comparison ordering issue
  mfd: cros_ec_i2c: Fix trivial 'tabs before spaces' whitespace issue.
  mfd: asic3: Fix a plethora of Checkpatch errors and warnings
  mfd: as3711: Repair OOM and 'line over 80 chars' formatting warnings
  mfd: arizona-i2c: Add blank line formatting after declaration
  mfd: arizona-core: msleep() is unreliable for anything <20ms use usleep_range() instead
  mfd: adp5520: Some trivial 'no space before tab' fixes
  mfd: ab8500-sysctrl: Fix Constify, printk => pr_info and formatting issues
  mfd: ab8500-gpadc: Squash a whole bunch of Checkpatch warnings and one error
  mfd: ab8500-debugfs: Clean-up non-conforming commenting and print formatting
  mfd: ab8500-core: Fix many warnings reported by Checkpatch
  mfd: ab2100-otp: Remove pointless 'out of memory' error message
  mfd: ab3100-core.c: Fix multiple warnings reported by Checkpatch
  mfd: aat2870-core: Remove unnecessary 'out of memory' message
  mfd: 88pm860x-core: Fix commenting and declaration spacing
  ...
2016-01-14 10:53:15 -08:00
Charles Keepax
0b81995148 mfd: arizona: Add device tree binding documentation for new clock driver
Specify the device tree binding for the input clocks to Arizona devices.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-01-14 08:43:51 +00:00
Krzysztof Kozlowski
5d1d147f04 dt-bindings: regulator/mfd: Reorganize S2MPA01 bindings
The mfd/s2mpa01.txt duplicates some of the information about bindings
with old mfd/s2mps11.txt. Now common part exists entirely in
mfd/samsung,sec-core.txt so:
 - add company prefix to file name (regulator/samsung,s2mpa01.txt),
 - remove duplicated information,
 - reorganize the contents to match style of
   regulator/samsung,s2mps11.txt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-01-14 08:43:49 +00:00
Krzysztof Kozlowski
27383ca93b dt-bindings: regulator/mfd: Reorganize S5M8767 bindings
The regulator/s5m8767-regulator.txt duplicates some of the information
about bindings with old mfd/s2mps11.txt. Now common part exists entirely
in mfd/samsung,sec-core.txt so:
 - add company prefix to file name (regulator/samsung,s5m8767.txt),
 - remove duplicated information,
 - reorganize the contents to match style of
   regulator/samsung,s2mps11.txt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-01-14 08:43:48 +00:00
Krzysztof Kozlowski
a13c7c51fd dt-bindings: regulator/clock/mfd: Reorganize S2MPS-family bindings
Bindings for Samsung S2M and S5M family PMICs are in mess. They are
spread over different files and subdirectories in a non-consistent way.
The devices and respective drivers for them share a lot in common so
everything could be organized in a more readable way.

Reorganize the S2MPS11/13/14/15 Device Tree bindings to match the
drivers for this family of devices:
 - move mfd/s2mps11.txt to mfd/samsung,sec-core.txt for the main MFD
   driver (common for entire family),
 - split clock block to clock/samsung,s2mps11.txt,
 - split regulator block to regulator/samsung,s2mps11.txt.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Michael Turquette <mturquette@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-01-14 08:43:48 +00:00
Linus Torvalds
f9a03ae123 Merge tag 'for-f2fs-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
 "This series adds two ioctls to control cached data and fragmented
  files.  Most of the rest fixes missing error cases and bugs that we
  have not covered so far.  Summary:

  Enhancements:
   - support an ioctl to execute online file defragmentation
   - support an ioctl to flush cached data
   - speed up shrinking of extent_cache entries
   - handle broken superblock
   - refector dirty inode management infra
   - revisit f2fs_map_blocks to handle more cases
   - reduce global lock coverage
   - add detecting user's idle time

  Major bug fixes:
   - fix data race condition on cached nat entries
   - fix error cases of volatile and atomic writes"

* tag 'for-f2fs-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (87 commits)
  f2fs: should unset atomic flag after successful commit
  f2fs: fix wrong memory condition check
  f2fs: monitor the number of background checkpoint
  f2fs: detect idle time depending on user behavior
  f2fs: introduce time and interval facility
  f2fs: skip releasing nodes in chindless extent tree
  f2fs: use atomic type for node count in extent tree
  f2fs: recognize encrypted data in f2fs_fiemap
  f2fs: clean up f2fs_balance_fs
  f2fs: remove redundant calls
  f2fs: avoid unnecessary f2fs_balance_fs calls
  f2fs: check the page status filled from disk
  f2fs: introduce __get_node_page to reuse common code
  f2fs: check node id earily when readaheading node page
  f2fs: read isize while holding i_mutex in fiemap
  Revert "f2fs: check the node block address of newly allocated nid"
  f2fs: cover more area with nat_tree_lock
  f2fs: introduce max_file_blocks in sbi
  f2fs crypto: check CONFIG_F2FS_FS_XATTR for encrypted symlink
  f2fs: introduce zombie list for fast shrinking extent trees
  ...
2016-01-13 21:01:44 -08:00
Linus Torvalds
1289ace5b4 SCSI misc on 20160113
This pull includes driver updates from the usual suspects (bfa, arcmsr,
 scsi_dh_alua, lpfc, storvsc, cxlflash).  The major change is the addition of
 the hisi_sas driver, which is an ARM platform device for SAS.  The other
 change of note is an enormous style transformation to the atp870u driver
 (which is our worst written SCSI driver).
 
 Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "This includes driver updates from the usual suspects (bfa, arcmsr,
  scsi_dh_alua, lpfc, storvsc, cxlflash).

  The major change is the addition of the hisi_sas driver, which is an
  ARM platform device for SAS.  The other change of note is an enormous
  style transformation to the atp870u driver (which is our worst written
  SCSI driver)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (169 commits)
  cxlflash: Enable device id for future IBM CXL adapter
  cxlflash: Resolve oops in wait_port_offline
  cxlflash: Fix to resolve cmd leak after host reset
  cxlflash: Removed driver date print
  cxlflash: Fix to avoid virtual LUN failover failure
  cxlflash: Fix to escalate LINK_RESET also on port 1
  storvsc: Tighten up the interrupt path
  storvsc: Refactor the code in storvsc_channel_init()
  storvsc: Properly support Fibre Channel devices
  storvsc: Fix a bug in the layout of the hv_fc_wwn_packet
  mvsas: Add SGPIO support to Marvell 94xx
  mpt3sas: A correction in unmap_resources
  hpsa: Add box and bay information for enclosure devices
  hpsa: Change SAS transport devices to bus 0.
  hpsa: fix path_info_show
  cciss: print max outstanding commands as a hex value
  scsi_debug: Increase the reported optimal transfer length
  lpfc: Update version to 11.0.0.10 for upstream patch set
  lpfc: Use kzalloc instead of kmalloc
  lpfc: Delete unnecessary checks before the function call "mempool_destroy"
  ...
2016-01-13 19:37:36 -08:00
Linus Torvalds
cbd88cd4c0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
 "Among the traditional bug fixes and cleanups are some improvements:

   - A tool to generated the facility lists, generating the bit fields
     by hand has been a source of bugs in the past

   - The spinlock loop is reordered to avoid bursts of hypervisor calls

   - Add support for the open-for-business interface to the service
     element

   - The get_cpu call is added to the vdso

   - A set of tracepoints is defined for the common I/O layer

   - The deprecated sclp_cpi module is removed

   - Update default configuration"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (56 commits)
  s390/sclp: fix possible control register corruption
  s390: fix normalization bug in exception table sorting
  s390/configs: update default configurations
  s390/vdso: optimize getcpu system call
  s390: drop smp_mb in vdso_init
  s390: rename struct _lowcore to struct lowcore
  s390/mem_detect: use unsigned longs
  s390/ptrace: get rid of long longs in psw_bits
  s390/sysinfo: add missing SYSIB 1.2.2 multithreading fields
  s390: get rid of CONFIG_SCHED_MC and CONFIG_SCHED_BOOK
  s390/Kconfig: remove pointless 64 bit dependencies
  s390/dasd: fix failfast for disconnected devices
  s390/con3270: testing return kzalloc retval
  s390/hmcdrv: constify hmcdrv_ftp_ops structs
  s390/cio: add NULL test
  s390/cio: Change I/O instructions from inline to normal functions
  s390/cio: Introduce common I/O layer tracepoints
  s390/cio: Consolidate inline assemblies and related data definitions
  s390/cio: Fix incorrect xsch opcode specification
  s390/cio: Remove unused inline assemblies
  ...
2016-01-13 13:16:16 -08:00
Linus Torvalds
77a76b04d2 media updates for v4.5-rc1
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Merge tag 'media/v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull second batch of media updates from Mauro Carvalho Chehab:
 "This is the second part of the media patches.  It contains the media
  controller next generation patches, with is the result of one year of
  discussions and development.  It also contains patches to enable media
  controller support at the DVB subsystem.

  The goal is to improve the media controller to allow proper support
  for other types of Video4Linux devices (radio and TV ones) and to
  extend the media controller functionality to allow it to be used by
  other subsystems like DVB, ALSA and IIO.

  In order to use the new functionality, a new ioctl is needed
  (MEDIA_IOC_G_TOPOLOGY).  As we're still discussing how to pack the
  struct fields of this ioctl in order to avoid compat32 issues, I
  decided to add a patch at the end of this series commenting out the
  new ioctl, in order to postpone the addition of the new ioctl to the
  next Kernel version (4.6).

  With that, no userspace visible changes should happen at the media
  controller API, as the existing ioctls are untouched.  Yet, it helps
  DVB, ALSA and IIO developers to develop and test the patches adding
  media controller support there, as the core will contain all required
  internal changes to allow adding support for devices that belong to
  those subsystems"

* tag 'media/v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (177 commits)
  [media] Postpone the addition of MEDIA_IOC_G_TOPOLOGY
  [media] mxl111sf: Add a tuner entity
  [media] dvbdev: create links on devices with multiple frontends
  [media] media-entitiy: add a function to create multiple links
  [media] dvb-usb-v2: postpone removal of media_device
  [media] dvbdev: Add RF connector if needed
  [media] dvbdev: remove two dead functions if !CONFIG_MEDIA_CONTROLLER_DVB
  [media] call media_device_init() before registering the V4L2 device
  [media] uapi/media.h: Use u32 for the number of graph objects
  [media] media-entity: don't sleep at media_device_register_entity()
  [media] media-entity: increase max number of PADs
  [media] media-entity.h: document the remaining functions
  [media] media-device.h: use just one u32 counter for object ID
  [media] media-entity.h fix documentation for several parameters
  [media] DocBook: document media_entity_graph_walk_cleanup()
  [media] move documentation to the header files
  [media] media: Move MEDIA_ENTITY_MAX_PADS from media-entity.h to media-entity.c
  [media] media: Remove pre-allocated entity enumeration bitmap
  [media] staging: v4l: davinci_vpbe: Use the new media graph walk interface
  [media] staging: v4l: omap4iss: Use the new media graph walk interface
  ...
2016-01-13 11:46:37 -08:00
Linus Torvalds
50ae833e47 spi: Updates for v4.5
A quiet release for SPI, not even many driver updates:
 
  - Add a dummy loopback driver for use in exercising framework features
    during development.
  - Move the test utilities to tools/ and add support for transferring
    data to and from a file instead of stdin and stdout to spidev_test.
  - Support for Mediatek MT2701 and Renesas AG5 deices.
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Merge tag 'spi-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "A quiet release for SPI, not even many driver updates:

   - Add a dummy loopback driver for use in exercising framework
     features during development.

   - Move the test utilities to tools/ and add support for transferring
     data to and from a file instead of stdin and stdout to spidev_test.

   - Support for Mediatek MT2701 and Renesas AG5 deices"

* tag 'spi-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (69 commits)
  spi: loopback: fix typo in MODULE_PARM_DESC
  spi: sun4i: Prevent chip-select from being activated twice before a transfer
  spi: loopback-test: spi_check_rx_ranges can get always done
  spi: loopback-test: rename method spi_test_fill_tx to spi_test_fill_pattern
  spi: loopback-test: write rx pattern also when running without tx_buf
  spi: fsl-espi: expose maximum transfer size limit
  spi: expose master transfer size limitation.
  spi: zynq: use to_platform_device()
  spi: cadence: use to_platform_device()
  spi: mediatek: Add spi support for mt2701 IC
  spi: mediatek: merge all identical compat to mtk_common_compat
  spi: mtk: Add bindings for mediatek MT2701 soc platform
  spi: mediatek: Prevent overflows in FIFO transfers
  spi: s3c64xx: Remove unused platform_device_id entries
  spi: use to_spi_device
  spi: dw: Use SPI_TMOD_TR rather than magic const 0 to set tmode
  spi: imx: defer spi initialization, if DMA engine is
  spi: imx: return error from dma channel request
  spi: imx: enable loopback only for ECSPI controller family
  spi: imx: fix loopback mode setup after controller reset
  ...
2016-01-13 11:38:27 -08:00
Linus Torvalds
ac53b2e053 MTD updates for v4.5:
Generic MTD
 
  * populate the MTD device 'of_node' field (and get a proper 'of_node' symlink
    in sysfs)
    - This yielded some new helper functions, and changes across a variety of
      drivers
 
  * partitioning cleanups, to prepare for better device-tree based partitioning
    in the future
    - Eliminate a lot of boilerplate for drivers that want to use OF-based
      partition parsing
    - The DT bindings for this didn't settle yet, so most non-cleanup portions
      are deferred for a future release
 
 NAND
 
  * embed a struct mtd_info inside struct nand_chip
    - This is really long overdue; too many drivers have to do the same silly
      boilerplate to allocate and link up two "independent" structs, when in
      fact, everyone is assuming there is an exact 1:1 relationship between a
      NAND chips struct and its underlying MTD. This aids improved helpers and
      should make certain abstractions easier in the future.
    - Also causes a lot of churn, helped along by some automated code
      transformations
 
  * add more core support for detecting (and "correcting") bitflips in erased
    pages; requires opt-in by drivers, but at least we kill a few bad
    implementations and hopefully stave off future ones
 
  * pxa3xx_nand: cleanups, a few fixes, and PM improvements
 
  * new JZ4780 NAND driver
 
 SPI NOR
 
  * provide default erase function, for controllers that just want to send the
    SECTOR_ERASE command directly
 
  * fix some module auto-loading issues with device tree ("jedec,spi-nor")
 
  * error handling fixes
 
  * new Mediatek QSPI flash driver
 
 Other
 
  * cfi: force valid geometry Kconfig (finally!)
    - this one used to trip up randconfigs occasionally, since bots aren't
      deterred by big scary "advanced configuration" menus
 
 More? Probably. See the commit logs.
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Merge tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "Generic MTD:

   - populate the MTD device 'of_node' field (and get a proper 'of_node'
     symlink in sysfs)

     This yielded some new helper functions, and changes across a
     variety of drivers

   - partitioning cleanups, to prepare for better device-tree based
     partitioning in the future

     Eliminate a lot of boilerplate for drivers that want to use
     OF-based partition parsing

     The DT bindings for this didn't settle yet, so most non-cleanup
     portions are deferred for a future release

  NAND:

   - embed a struct mtd_info inside struct nand_chip

     This is really long overdue; too many drivers have to do the same
     silly boilerplate to allocate and link up two "independent"
     structs, when in fact, everyone is assuming there is an exact 1:1
     relationship between a NAND chips struct and its underlying MTD.
     This aids improved helpers and should make certain abstractions
     easier in the future.

     Also causes a lot of churn, helped along by some automated code
     transformations

   - add more core support for detecting (and "correcting") bitflips in
     erased pages; requires opt-in by drivers, but at least we kill a
     few bad implementations and hopefully stave off future ones

   - pxa3xx_nand: cleanups, a few fixes, and PM improvements

   - new JZ4780 NAND driver

  SPI NOR:

   - provide default erase function, for controllers that just want to
     send the SECTOR_ERASE command directly

   - fix some module auto-loading issues with device tree
     ("jedec,spi-nor")

   - error handling fixes

   - new Mediatek QSPI flash driver

  Other:

   - cfi: force valid geometry Kconfig (finally!)

     This one used to trip up randconfigs occasionally, since bots
     aren't deterred by big scary "advanced configuration" menus

  More? Probably. See the commit logs"

* tag 'for-linus-20160112' of git://git.infradead.org/linux-mtd: (168 commits)
  mtd: jz4780_nand: replace if/else blocks with switch/case
  mtd: nand: jz4780: Update ecc correction error codes
  mtd: nandsim: use nand_get_controller_data()
  mtd: jz4780_nand: remove useless mtd->priv = chip assignment
  staging: mt29f_spinand: make use of nand_set/get_controller_data() helpers
  mtd: nand: make use of nand_set/get_controller_data() helpers
  ARM: make use of nand_set/get_controller_data() helpers
  mtd: nand: add helpers to access ->priv
  mtd: nand: jz4780: driver for NAND devices on JZ4780 SoCs
  mtd: nand: jz4740: remove custom 'erased check' implementation
  mtd: nand: diskonchip: remove custom 'erased check' implementation
  mtd: nand: davinci: remove custom 'erased check' implementation
  mtd: nand: use nand_check_erased_ecc_chunk in default ECC read functions
  mtd: nand: return consistent error codes in ecc.correct() implementations
  doc: dt: mtd: new binding for jz4780-{nand,bch}
  mtd: cfi_cmdset_0001: fixing memory leak and handling failed kmalloc
  mtd: spi-nor: wait until lock/unlock operations are ready
  mtd: tests: consolidate kmalloc/memset 0 call to kzalloc
  jffs2: use to_delayed_work
  mtd: nand: assign reasonable default name for NAND drivers
  ...
2016-01-13 11:25:54 -08:00
Linus Torvalds
1c5ff2ab7b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 - new driver for eGalaxTouch serial touchscreen
 - new driver for TS-4800 touchscreen
 - an update for Goodix touchscreen driver
 - PS/2 mouse module was reworked to limit number of protocols we try on
   pass-through ports to speed up their detection time
 - wacom_w8001 touchscreen driver now reports pen and touch via separate
   instances of input devices
 - other driver changes

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (42 commits)
  Input: elantech - mark protocols v2 and v3 as semi-mt
  Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE
  Input: gpio-keys - fix check for disabling unsupported keys
  Input: omap-keypad - remove dead check
  Input: ti_am335x_tsc - fix HWPEN interrupt handling
  Input: omap-keypad - set tasklet data earlier
  Input: rohm_bu21023 - fix handling of retrying firmware update
  Input: ALPS - report v3 pinnacle trackstick device only if is present
  Input: ALPS - detect trackstick presence for v7 protocol
  Input: pcap_ts - use to_delayed_work
  Input: bma150 - constify bma150_cfg structure
  Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
  Input: egalax_ts_serial - fix potential NULL dereference on error
  Input: uinput - sanity check on ff_effects_max and EV_FF
  Input: uinput - rework ABS validation
  Input: uinput - add new UINPUT_DEV_SETUP and UI_ABS_SETUP ioctl
  Input: goodix - use "inverted_[xy]" flags instead of "rotated_screen"
  Input: goodix - add axis swapping and axis inversion support
  Input: goodix - use goodix_i2c_write_u8 instead of i2c_master_send
  Input: goodix - add power management support
  ...
2016-01-13 11:14:05 -08:00
Linus Torvalds
d6a322774c dmaengine updates for 4.5-rc1
This round we have few new features, new driver and updates to few drivers.
 
 The new features to dmaengine core are:
 - Synchronized transfer termination API to terminate the dmaengine
     transfers in synchronized and async fashion as required by users.
     We have its user now in ALSA dmaengine lib, img, at_xdma, axi_dmac
     drivers.
 - Universal API for channel request and start consolidation of request
     flows. It's user is ompa-dma driver.
 - Introduce reuse of descriptors and use in pxa_dma driver
 
 Add/Remove:
 - STM32 DMA driver
 - Removal of unused R-Car HPB-DMAC driver
 
 Updates:
 - ti-dma-crossbar updates for supporting eDMA
 - tegra-apb pm updates
 - idma64
 - mv_xor updates
 - ste_dma updates
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Merge tag 'dmaengine-4.5-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "This round we have few new features, new driver and updates to few
  drivers.

  The new features to dmaengine core are:
   - Synchronized transfer termination API to terminate the dmaengine
     transfers in synchronized and async fashion as required by users.
     We have its user now in ALSA dmaengine lib, img, at_xdma, axi_dmac
     drivers.
   - Universal API for channel request and start consolidation of
     request flows.  It's user is ompa-dma driver.
   - Introduce reuse of descriptors and use in pxa_dma driver

  Add/Remove:
   - New STM32 DMA driver
   - Removal of unused R-Car HPB-DMAC driver

  Updates:
   - ti-dma-crossbar updates for supporting eDMA
   - tegra-apb pm updates
   - idma64
   - mv_xor updates
   - ste_dma updates"

* tag 'dmaengine-4.5-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (54 commits)
  dmaengine: mv_xor: add suspend/resume support
  dmaengine: mv_xor: de-duplicate mv_chan_set_mode*()
  dmaengine: mv_xor: remove mv_xor_chan->current_type field
  dmaengine: omap-dma: Add support for DMA filter mapping to slave devices
  dmaengine: edma: Add support for DMA filter mapping to slave devices
  dmaengine: core: Introduce new, universal API to request a channel
  dmaengine: core: Move and merge the code paths using private_candidate
  dmaengine: core: Skip mask matching when it is not provided to private_candidate
  dmaengine: mdc: Correct terminate_all handling
  dmaengine: edma: Add probe callback to edma_tptc_driver
  dmaengine: dw: fix potential memory leak in dw_dma_parse_dt()
  dmaengine: stm32-dma: Fix unchecked deference of chan->desc
  dmaengine: sh: Remove unused R-Car HPB-DMAC driver
  dmaengine: usb-dmac: Document SoC specific compatibility strings
  ste_dma40: Delete an unnecessary variable initialisation in d40_probe()
  ste_dma40: Delete another unnecessary check in d40_probe()
  ste_dma40: Delete an unnecessary check before the function call "kmem_cache_destroy"
  dmaengine: tegra-apb: Free interrupts before killing tasklets
  dmaengine: tegra-apb: Update driver to use GFP_NOWAIT
  dmaengine: tegra-apb: Only save channel state for those in use
  ...
2016-01-13 10:59:52 -08:00
Linus Torvalds
4c257ec37b char/misc patches for 4.5-rc1
Here's the big set of char/misc patches for 4.5-rc1.
 
 Nothing major, lots of different driver subsystem updates, full details
 in the shortlog.  All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc updates from Greg KH:
 "Here's the big set of char/misc patches for 4.5-rc1.

  Nothing major, lots of different driver subsystem updates, full
  details in the shortlog.  All of these have been in linux-next for a
  while"

* tag 'char-misc-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (71 commits)
  mei: fix fasync return value on error
  parport: avoid assignment in if
  parport: remove unneeded space
  parport: change style of NULL comparison
  parport: remove unnecessary out of memory message
  parport: remove braces
  parport: quoted strings should not be split
  parport: code indent should use tabs
  parport: fix coding style
  parport: EXPORT_SYMBOL should follow function
  parport: remove trailing white space
  parport: fix a trivial typo
  coresight: Fix a typo in Kconfig
  coresight: checking for NULL string in coresight_name_match()
  Drivers: hv: vmbus: Treat Fibre Channel devices as performance critical
  Drivers: hv: utils: fix hvt_op_poll() return value on transport destroy
  Drivers: hv: vmbus: fix the building warning with hyperv-keyboard
  extcon: add Maxim MAX3355 driver
  Drivers: hv: ring_buffer: eliminate hv_ringbuffer_peek()
  Drivers: hv: remove code duplication between vmbus_recvpacket()/vmbus_recvpacket_raw()
  ...
2016-01-13 10:23:36 -08:00
Linus Torvalds
39272dde8f Staging patches for 4.5-rc1
Here is the big staging driver pull request for 4.5-rc1.  Lots of
 cleanups and fixes here, not as many as some releases, but 800+ isn't
 that bad.  Full details in the shortlog.  All of these have been in
 linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here is the big staging driver pull request for 4.5-rc1.

  Lots of cleanups and fixes here, not as many as some releases, but
  800+ isn't that bad.  Full details in the shortlog.  All of these have
  been in linux-next for a while"

* tag 'staging-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (843 commits)
  Revert "arm64: dts: Add dts files to enable ION on Hi6220 SoC."
  staging: gdm724x: constify tty_port_operations structs
  staging: gdm72xx: add userspace data struct
  staging: gdm72xx: Replace timeval with ktime_t
  iio: adc: ina2xx: Fix incorrect report of data endianness to userspace.
  iio: light: us5182d: Refactor read_raw function
  iio: light: us5182d: Add interrupt support and events
  iio: light: us5182d: Fix enable status inconcistency
  iio: Make IIO value formating function globally available.
  staging: emxx_udc: use list_first_entry_or_null()
  staging/emxx_udc: fix 64-bit warnings
  STAGING: COMEDI: Using kernel types in plx9080.h
  STAGING: COMEDI: Added spaces around binary operators in plx9080.h
  STAGING: COMEDI: Fixed format of comments in plx9080.h
  staging: comedi: comedilib.h: Coding style warning fix for block comments
  staging: comedi: s526: add macros for counter control reg values
  staging: comedi: s526: replace counter mode bitfield struct
  staging: comedi: check for more errors for zero-length write
  staging: comedi: simplify returned errors for comedi_write()
  staging: comedi: return error on "write" if no command set up
  ...
2016-01-13 10:13:36 -08:00
Linus Torvalds
67ad058d97 TTY/Serial patches for 4.5-rc1
Here is the big serial/tty driver updates for 4.5-rc1.  Lots of driver
 updates and some tty core changes.  All of these have been in linux-next
 and the details are in the shortlog.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the big serial/tty driver update for 4.5-rc1.

  Lots of driver updates and some tty core changes.  All of these have
  been in linux-next and the details are in the shortlog"

* tag 'tty-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (127 commits)
  drivers/tty/serial: delete unused MODULE_DEVICE_TABLE from atmel_serial.c
  serial: sh-sci: Remove cpufreq notifier to fix crash/deadlock
  serial: 8250: of: Fix the driver and actually compile the 8250_of
  tty: amba-pl011: use iotype instead of access_32b to track 32-bit I/O
  tty: amba-pl011: fix earlycon register offsets
  serial: sh-sci: Drop the sci_fck clock fallback
  sh: sh7734: Correct SCIF type for BRG
  sh: Remove sci_ick clock alias
  sh: Rename sci_ick and sci_fck clock to fck
  serial: sh-sci: Add support for optional BRG on (H)SCIF
  serial: sh-sci: Add support for optional external (H)SCK input
  serial: sh-sci: Prepare for multiple sampling clock sources
  serial: sh-sci: Correct SCIF type on R-Car for BRG
  serial: sh-sci: Correct SCIF type on RZ/A1H
  serial: sh-sci: Replace struct sci_port_info by type/regtype encoding
  serial: sh-sci: Add BRG register definitions
  serial: sh-sci: Take into account sampling rate for max baud rate
  serial: sh-sci: Merge sci_scbrr_calc() and sci_baud_calc_hscif()
  serial: sh-sci: Avoid calculating the receive margin for HSCIF
  serial: sh-sci: Improve bit rate error calculation for HSCIF
  ...
2016-01-13 10:02:05 -08:00
Linus Torvalds
237f38c3b3 USB patches for 4.5-rc1
Here is the big USB drivers update for 4.5-rc1.  Lots of gadget driver
 updates and fixes, like usual, and a mix of other USB driver updates as
 well.  Full details in the shortlog.  All of these have been in
 linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB drivers update for 4.5-rc1.

  Lots of gadget driver updates and fixes, like usual, and a mix of
  other USB driver updates as well.  Full details in the shortlog.  All
  of these have been in linux-next for a while"

* tag 'usb-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (191 commits)
  MAINTAINERS: change my email address
  USB: usbmon: remove assignment from IS_ERR argument
  USB: mxu11x0: drop redundant function name from error messages
  USB: mxu11x0: fix debug-message typos
  USB: mxu11x0: rename usb-serial driver
  USB: mxu11x0: fix modem-control handling on B0-transitions
  USB: mxu11x0: fix memory leak on firmware download
  USB: mxu11x0: fix memory leak in port-probe error path
  USB: serial: add Moxa UPORT 11x0 driver
  USB: cp210x: add ID for ELV Marble Sound Board 1
  usb: chipidea: otg: use usb autosuspend to suspend bus for HNP
  usb: chipidea: host: set host to be null after hcd is freed
  usb: chipidea: removing of_find_property
  usb: chipidea: implement platform shutdown callback
  usb: chipidea: clean up CONFIG_USB_CHIPIDEA_DEBUG reference
  usb: chipidea: delete static debug support
  usb: chipidea: support debugfs without CONFIG_USB_CHIPIDEA_DEBUG
  usb: chipidea: udc: improve error handling on _hardware_enqueue
  usb: chipidea: udc: _ep_queue and _hw_queue cleanup
  usb: dwc3: of-simple: fix build warning on !PM
  ...
2016-01-13 09:26:40 -08:00
Laxman Dewangan
c4dc5f8c95 Input: gpio-keys - allow setting input device name in DT
Allow specifying name if input device via device tree property. This helps
userspace code to get name and perform proper event to key mapping in some
cases (for example, on Android).

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-01-13 00:18:05 -08:00
Linus Torvalds
67990608c8 Power management and ACPI updates for v4.5-rc1
- Add a debugfs-based interface for interacting with the ACPICA's
    AML debugger introduced in the previous cycle and a new user
    space tool for that, fix some bugs related to the AML debugger
    and clean up the code in question (Lv Zheng, Dan Carpenter,
    Colin Ian King, Markus Elfring).
 
  - Update ACPICA to upstream revision 20151218 including a number
    of fixes and cleanups in the ACPICA core (Bob Moore, Lv Zheng,
    Labbe Corentin, Prarit Bhargava, Colin Ian King, David E Box,
    Rafael Wysocki).
 
    In particular, the previously added erroneous support for the
    _SUB object is dropped, the concatenate operator will support
    all ACPI objects now, the Debug Object handling is improved,
    the SuperName handling of parameters being control methods is
    fixed, the ObjectType operator handling is updated to follow
    ACPI 5.0A and the handling of CondRefOf and RefOf is updated
    accordingly, module-level code will be executed after loading
    each ACPI table now (instead of being run once after all tables
    containing AML have been loaded), the Operation Region handlers
    management is updated to fix some reported problems and a the
    ACPICA code in the kernel is more in line with the upstream
    now.
 
  - Update the ACPI backlight driver to provide information on
    whether or not it will generate key-presses for brightness
    change hotkeys and update some platform drivers (dell-wmi,
    thinkpad_acpi) to use that information to avoid sending double
    key-events to users pace for these, add new ACPI backlight
    quirks (Hans de Goede, Aaron Lu, Adrien Schildknecht).
 
  - Improve the ACPI handling of interrupt GPIOs (Christophe Ricard).
 
  - Fix the handling of the list of device IDs of device objects
    found in the ACPI namespace and add a helper for checking if
    there is a device object for a given device ID (Lukas Wunner).
 
  - Change the logic in the ACPI namespace scanning code to create
    struct acpi_device objects for all ACPI device objects found in
    the namespace even if _STA fails for them which helps to avoid
    device enumeration problems on Microsoft Surface 3 (Aaron Lu).
 
  - Add support for the APM X-Gene ACPI I2C device to the ACPI
    driver for AMD SoCs (Loc Ho).
 
  - Fix the long-standing issue with the DMA controller on Intel
    SoCs where ACPI tables have no power management support for
    the DMA controller itself, but it can be powered off automatically
    when the last (other) device on the SoC is powered off via ACPI
    and clean up the ACPI driver for Intel SoCs (acpi-lpss) after
    previous attempts to fix that problem (Andy Shevchenko).
 
  - Assorted ACPI fixes and cleanups (Andy Lutomirski, Colin Ian King,
    Javier Martinez Canillas, Ken Xue, Mathias Krause, Rafael Wysocki,
    Sinan Kaya).
 
  - Update the device properties framework for better handling of
    built-in properties, add support for built-in properties to
    the platform bus type, update the MFD subsystem's handling
    of device properties and add support for passing default
    configuration data as device properties to the intel-lpss MFD
    drivers, convert the designware I2C driver to use the unified
    device properties API and add a fallback mechanism for using
    default built-in properties if the platform firmware fails
    to provide the properties as expected by drivers (Andy Shevchenko,
    Mika Westerberg, Heikki Krogerus, Andrew Morton).
 
  - Add new Device Tree bindings to the Operating Performance Points
    (OPP) framework and update the exynos4412 DT binding accordingly,
    introduce debugfs support for the OPP framework (Viresh Kumar,
    Bartlomiej Zolnierkiewicz).
 
  - Migrate the mt8173 cpufreq driver to the new OPP bindings
    (Pi-Cheng Chen).
 
  - Update the cpufreq core to make the handling of governors
    more efficient, especially on systems where policy objects
    are shared between multiple CPUs (Viresh Kumar, Rafael Wysocki).
 
  - Fix cpufreq governor handling on configurations with
    CONFIG_HZ_PERIODIC set (Chen Yu).
 
  - Clean up the cpufreq core code related to the boost sysfs knob
    support and update the ACPI cpufreq driver accordingly (Rafael
    Wysocki).
 
  - Add a new cpufreq driver for ST platforms and corresponding
    Device Tree bindings (Lee Jones).
 
  - Update the intel_pstate driver to allow the P-state selection
    algorithm used by it to depend on the CPU ID of the processor it
    is running on, make it use a special P-state selection algorithm
    (with an IO wait time compensation tweak) on Atom CPUs based on
    the Airmont and Silvermont cores so as to reduce their energy
    consumption and improve intel_pstate documentation (Philippe
    Longepe, Srinivas Pandruvada).
 
  - Update the cpufreq-dt driver to support registering cooling
    devices that use the (P * V^2 * f) dynamic power draw formula
    where V is the voltage, f is the frequency and P is a constant
    coefficient provided by Device Tree and update the arm_big_little
    cpufreq driver to use that support (Punit Agrawal).
 
  - Assorted cpufreq driver (cpufreq-dt, qoriq, pcc-cpufreq,
    blackfin-cpufreq) updates (Andrzej Hajda, Hongtao Jia,
    Jacob Tanenbaum, Markus Elfring).
 
  - cpuidle core tweaks related to polling and measured_us
    calculation (Rik van Riel).
 
  - Removal of modularity from a few cpuidle drivers (clps711x,
    ux500, exynos) that cannot be built as modules in practice
    (Paul Gortmaker).
 
  - PM core update to prevent devices from being probed during
    system suspend/resume which is generally problematic and may
    lead to inconsistent behavior (Grygorii Strashko).
 
  - Assorted updates of the PM core and related code (Julia Lawall,
    Manuel Pégourié-Gonnard, Maruthi Bayyavarapu, Rafael Wysocki,
    Ulf Hansson).
 
  - PNP bus type updates (Christophe Le Roy, Heiner Kallweit).
 
  - PCI PM code cleanups (Jarkko Nikula, Julia Lawall).
 
  - cpupower tool updates (Jacob Tanenbaum, Thomas Renninger).
 
 /
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Merge tag 'pm+acpi-4.5-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull oower management and ACPI updates from Rafael Wysocki:
 "As far as the number of commits goes, ACPICA takes the lead this time,
  followed by cpufreq and the device properties framework changes.

  The most significant new feature is the debugfs-based interface to the
  ACPICA's AML debugger added in the previous cycle and a new user space
  tool for accessing it.

  On the cpufreq front, the core is updated to handle governors more
  efficiently, particularly on systems where a single cpufreq policy
  object is shared between multiple CPUs, and there are quite a few
  changes in drivers (intel_pstate, cpufreq-dt etc).

  The device properties framework is updated to handle built-in (ie
  included in the kernel itself) device properties better, among other
  things by adding a fallback mechanism that will allow drivers to
  provide default properties to be used in case the plaform firmware
  doesn't provide the properties expected by them.

  The Operating Performance Points (OPP) framework gets new DT bindings
  and debugfs support.

  A new cpufreq driver for ST platforms is added and the ACPI driver for
  AMD SoCs will now support the APM X-Gene ACPI I2C device.

  The rest is mostly fixes and cleanups all over.

  Specifics:

   - Add a debugfs-based interface for interacting with the ACPICA's AML
     debugger introduced in the previous cycle and a new user space tool
     for that, fix some bugs related to the AML debugger and clean up
     the code in question (Lv Zheng, Dan Carpenter, Colin Ian King,
     Markus Elfring).

   - Update ACPICA to upstream revision 20151218 including a number of
     fixes and cleanups in the ACPICA core (Bob Moore, Lv Zheng, Labbe
     Corentin, Prarit Bhargava, Colin Ian King, David E Box, Rafael
     Wysocki).

     In particular, the previously added erroneous support for the _SUB
     object is dropped, the concatenate operator will support all ACPI
     objects now, the Debug Object handling is improved, the SuperName
     handling of parameters being control methods is fixed, the
     ObjectType operator handling is updated to follow ACPI 5.0A and the
     handling of CondRefOf and RefOf is updated accordingly, module-
     level code will be executed after loading each ACPI table now
     (instead of being run once after all tables containing AML have
     been loaded), the Operation Region handlers management is updated
     to fix some reported problems and a the ACPICA code in the kernel
     is more in line with the upstream now.

   - Update the ACPI backlight driver to provide information on whether
     or not it will generate key-presses for brightness change hotkeys
     and update some platform drivers (dell-wmi, thinkpad_acpi) to use
     that information to avoid sending double key-events to users pace
     for these, add new ACPI backlight quirks (Hans de Goede, Aaron Lu,
     Adrien Schildknecht).

   - Improve the ACPI handling of interrupt GPIOs (Christophe Ricard).

   - Fix the handling of the list of device IDs of device objects found
     in the ACPI namespace and add a helper for checking if there is a
     device object for a given device ID (Lukas Wunner).

   - Change the logic in the ACPI namespace scanning code to create
     struct acpi_device objects for all ACPI device objects found in the
     namespace even if _STA fails for them which helps to avoid device
     enumeration problems on Microsoft Surface 3 (Aaron Lu).

   - Add support for the APM X-Gene ACPI I2C device to the ACPI driver
     for AMD SoCs (Loc Ho).

   - Fix the long-standing issue with the DMA controller on Intel SoCs
     where ACPI tables have no power management support for the DMA
     controller itself, but it can be powered off automatically when the
     last (other) device on the SoC is powered off via ACPI and clean up
     the ACPI driver for Intel SoCs (acpi-lpss) after previous attempts
     to fix that problem (Andy Shevchenko).

   - Assorted ACPI fixes and cleanups (Andy Lutomirski, Colin Ian King,
     Javier Martinez Canillas, Ken Xue, Mathias Krause, Rafael Wysocki,
     Sinan Kaya).

   - Update the device properties framework for better handling of
     built-in properties, add support for built-in properties to the
     platform bus type, update the MFD subsystem's handling of device
     properties and add support for passing default configuration data
     as device properties to the intel-lpss MFD drivers, convert the
     designware I2C driver to use the unified device properties API and
     add a fallback mechanism for using default built-in properties if
     the platform firmware fails to provide the properties as expected
     by drivers (Andy Shevchenko, Mika Westerberg, Heikki Krogerus,
     Andrew Morton).

   - Add new Device Tree bindings to the Operating Performance Points
     (OPP) framework and update the exynos4412 DT binding accordingly,
     introduce debugfs support for the OPP framework (Viresh Kumar,
     Bartlomiej Zolnierkiewicz).

   - Migrate the mt8173 cpufreq driver to the new OPP bindings (Pi-Cheng
     Chen).

   - Update the cpufreq core to make the handling of governors more
     efficient, especially on systems where policy objects are shared
     between multiple CPUs (Viresh Kumar, Rafael Wysocki).

   - Fix cpufreq governor handling on configurations with
     CONFIG_HZ_PERIODIC set (Chen Yu).

   - Clean up the cpufreq core code related to the boost sysfs knob
     support and update the ACPI cpufreq driver accordingly (Rafael
     Wysocki).

   - Add a new cpufreq driver for ST platforms and corresponding Device
     Tree bindings (Lee Jones).

   - Update the intel_pstate driver to allow the P-state selection
     algorithm used by it to depend on the CPU ID of the processor it is
     running on, make it use a special P-state selection algorithm (with
     an IO wait time compensation tweak) on Atom CPUs based on the
     Airmont and Silvermont cores so as to reduce their energy
     consumption and improve intel_pstate documentation (Philippe
     Longepe, Srinivas Pandruvada).

   - Update the cpufreq-dt driver to support registering cooling devices
     that use the (P * V^2 * f) dynamic power draw formula where V is
     the voltage, f is the frequency and P is a constant coefficient
     provided by Device Tree and update the arm_big_little cpufreq
     driver to use that support (Punit Agrawal).

   - Assorted cpufreq driver (cpufreq-dt, qoriq, pcc-cpufreq,
     blackfin-cpufreq) updates (Andrzej Hajda, Hongtao Jia, Jacob
     Tanenbaum, Markus Elfring).

   - cpuidle core tweaks related to polling and measured_us calculation
     (Rik van Riel).

   - Removal of modularity from a few cpuidle drivers (clps711x, ux500,
     exynos) that cannot be built as modules in practice (Paul
     Gortmaker).

   - PM core update to prevent devices from being probed during system
     suspend/resume which is generally problematic and may lead to
     inconsistent behavior (Grygorii Strashko).

   - Assorted updates of the PM core and related code (Julia Lawall,
     Manuel Pégourié-Gonnard, Maruthi Bayyavarapu, Rafael Wysocki, Ulf
     Hansson).

   - PNP bus type updates (Christophe Le Roy, Heiner Kallweit).

   - PCI PM code cleanups (Jarkko Nikula, Julia Lawall).

   - cpupower tool updates (Jacob Tanenbaum, Thomas Renninger)"

* tag 'pm+acpi-4.5-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (177 commits)
  PM / clk: don't leave clocks enabled when driver not bound
  i2c: dw: Add APM X-Gene ACPI I2C device support
  ACPI / APD: Add APM X-Gene ACPI I2C device support
  ACPI / LPSS: change 'does not have' to 'has' in comment
  Revert "dmaengine: dw: platform: provide platform data for Intel"
  dmaengine: dw: return immediately from IRQ when DMA isn't in use
  dmaengine: dw: platform: power on device on shutdown
  ACPI / LPSS: override power state for LPSS DMA device
  PM / OPP: Use snprintf() instead of sprintf()
  Documentation: cpufreq: intel_pstate: enhance documentation
  ACPI, PCI, irq: remove redundant check for null string pointer
  ACPI / video: driver must be registered before checking for keypresses
  cpufreq-dt: fix handling regulator_get_voltage() result
  cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC
  PM / sleep: Add support for read-only sysfs attributes
  ACPI: Fix white space in a structure definition
  ACPI / SBS: fix inconsistent indenting inside if statement
  PNP: respect PNP_DRIVER_RES_DO_NOT_CHANGE when detaching
  ACPI / PNP: constify device IDs
  ACPI / PCI: Simplify acpi_penalize_isa_irq()
  ...
2016-01-12 20:25:09 -08:00
Linus Torvalds
34a9304a96 Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:

 - cgroup v2 interface is now official.  It's no longer hidden behind a
   devel flag and can be mounted using the new cgroup2 fs type.

   Unfortunately, cpu v2 interface hasn't made it yet due to the
   discussion around in-process hierarchical resource distribution and
   only memory and io controllers can be used on the v2 interface at the
   moment.

 - The existing documentation which has always been a bit of mess is
   relocated under Documentation/cgroup-v1/. Documentation/cgroup-v2.txt
   is added as the authoritative documentation for the v2 interface.

 - Some features are added through for-4.5-ancestor-test branch to
   enable netfilter xt_cgroup match to use cgroup v2 paths.  The actual
   netfilter changes will be merged through the net tree which pulled in
   the said branch.

 - Various cleanups

* 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: rename cgroup documentations
  cgroup: fix a typo.
  cgroup: Remove resource_counter.txt in Documentation/cgroup-legacy/00-INDEX.
  cgroup: demote subsystem init messages to KERN_DEBUG
  cgroup: Fix uninitialized variable warning
  cgroup: put controller Kconfig options in meaningful order
  cgroup: clean up the kernel configuration menu nomenclature
  cgroup_pids: fix a typo.
  Subject: cgroup: Fix incomplete dd command in blkio documentation
  cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends
  cpuset: Replace all instances of time_t with time64_t
  cgroup: replace unified-hierarchy.txt with a proper cgroup v2 documentation
  cgroup: rename Documentation/cgroups/ to Documentation/cgroup-legacy/
  cgroup: replace __DEVEL__sane_behavior with cgroup2 fs type
2016-01-12 19:20:32 -08:00
Linus Torvalds
aee3bfa330 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from Davic Miller:

 1) Support busy polling generically, for all NAPI drivers.  From Eric
    Dumazet.

 2) Add byte/packet counter support to nft_ct, from Floriani Westphal.

 3) Add RSS/XPS support to mvneta driver, from Gregory Clement.

 4) Implement IPV6_HDRINCL socket option for raw sockets, from Hannes
    Frederic Sowa.

 5) Add support for T6 adapter to cxgb4 driver, from Hariprasad Shenai.

 6) Add support for VLAN device bridging to mlxsw switch driver, from
    Ido Schimmel.

 7) Add driver for Netronome NFP4000/NFP6000, from Jakub Kicinski.

 8) Provide hwmon interface to mlxsw switch driver, from Jiri Pirko.

 9) Reorganize wireless drivers into per-vendor directories just like we
    do for ethernet drivers.  From Kalle Valo.

10) Provide a way for administrators "destroy" connected sockets via the
    SOCK_DESTROY socket netlink diag operation.  From Lorenzo Colitti.

11) Add support to add/remove multicast routes via netlink, from Nikolay
    Aleksandrov.

12) Make TCP keepalive settings per-namespace, from Nikolay Borisov.

13) Add forwarding and packet duplication facilities to nf_tables, from
    Pablo Neira Ayuso.

14) Dead route support in MPLS, from Roopa Prabhu.

15) TSO support for thunderx chips, from Sunil Goutham.

16) Add driver for IBM's System i/p VNIC protocol, from Thomas Falcon.

17) Rationalize, consolidate, and more completely document the checksum
    offloading facilities in the networking stack.  From Tom Herbert.

18) Support aborting an ongoing scan in mac80211/cfg80211, from
    Vidyullatha Kanchanapally.

19) Use per-bucket spinlock for bpf hash facility, from Tom Leiming.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1375 commits)
  net: bnxt: always return values from _bnxt_get_max_rings
  net: bpf: reject invalid shifts
  phonet: properly unshare skbs in phonet_rcv()
  dwc_eth_qos: Fix dma address for multi-fragment skbs
  phy: remove an unneeded condition
  mdio: remove an unneed condition
  mdio_bus: NULL dereference on allocation error
  net: Fix typo in netdev_intersect_features
  net: freescale: mac-fec: Fix build error from phy_device API change
  net: freescale: ucc_geth: Fix build error from phy_device API change
  bonding: Prevent IPv6 link local address on enslaved devices
  IB/mlx5: Add flow steering support
  net/mlx5_core: Export flow steering API
  net/mlx5_core: Make ipv4/ipv6 location more clear
  net/mlx5_core: Enable flow steering support for the IB driver
  net/mlx5_core: Initialize namespaces only when supported by device
  net/mlx5_core: Set priority attributes
  net/mlx5_core: Connect flow tables
  net/mlx5_core: Introduce modify flow table command
  net/mlx5_core: Managing root flow table
  ...
2016-01-12 18:57:02 -08:00
Linus Torvalds
c597b6bcd5 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 "Algorithms:
   - Add RSA padding algorithm

  Drivers:
   - Add GCM mode support to atmel
   - Add atmel support for SAMA5D2 devices
   - Add cipher modes to talitos
   - Add rockchip driver for rk3288
   - Add qat support for C3XXX and C62X"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (103 commits)
  crypto: hifn_795x, picoxcell - use ablkcipher_request_cast
  crypto: qat - fix SKU definiftion for c3xxx dev
  crypto: qat - Fix random config build issue
  crypto: ccp - use to_pci_dev and to_platform_device
  crypto: qat - Rename dh895xcc mmp firmware
  crypto: 842 - remove WARN inside printk
  crypto: atmel-aes - add debug facilities to monitor register accesses.
  crypto: atmel-aes - add support to GCM mode
  crypto: atmel-aes - change the DMA threshold
  crypto: atmel-aes - fix the counter overflow in CTR mode
  crypto: atmel-aes - fix atmel-ctr-aes driver for RFC 3686
  crypto: atmel-aes - create sections to regroup functions by usage
  crypto: atmel-aes - fix typo and indentation
  crypto: atmel-aes - use SIZE_IN_WORDS() helper macro
  crypto: atmel-aes - improve performances of data transfer
  crypto: atmel-aes - fix atmel_aes_remove()
  crypto: atmel-aes - remove useless AES_FLAGS_DMA flag
  crypto: atmel-aes - reduce latency of DMA completion
  crypto: atmel-aes - remove unused 'err' member of struct atmel_aes_dev
  crypto: atmel-aes - rework crypto request completion
  ...
2016-01-12 18:51:14 -08:00
Linus Torvalds
420d12d6ad Configfs changes for the 4.5 merge window:
- I'm assisting Joel as co-maintainer and patch monkey now, and you will
    see pull reuquests from me for a while
  - Besides the MAINTAINERS update there is just a single change, which
    adds support for binary attributes to configfs, which are very similar
    to the sysfs binary attributes.  Thanks to Pantelis Antoniou!
  - You will see another actually bigger set of configfs changes in the
    SCSI target pull from Nic - those were merged before this new tree
    even existed
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Merge tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfs

Pull configfs updates from Christoph Hellwig:
 "I'm assisting Joel as co-maintainer and patch monkey now, and you will
  see pull reuquests from me for a while.

  Besides the MAINTAINERS update there is just a single change, which
  adds support for binary attributes to configfs, which are very similar
  to the sysfs binary attributes.  Thanks to Pantelis Antoniou!

  You will see another actually bigger set of configfs changes in the
  SCSI target pull from Nic - those were merged before this new tree
  even existed"

* tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfs:
  configfs: add myself as co-maintainer, updated git tree
  configfs: implement binary attributes
2016-01-12 18:15:34 -08:00
Linus Torvalds
33caf82acf Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:
 "All kinds of stuff.  That probably should've been 5 or 6 separate
  branches, but by the time I'd realized how large and mixed that bag
  had become it had been too close to -final to play with rebasing.

  Some fs/namei.c cleanups there, memdup_user_nul() introduction and
  switching open-coded instances, burying long-dead code, whack-a-mole
  of various kinds, several new helpers for ->llseek(), assorted
  cleanups and fixes from various people, etc.

  One piece probably deserves special mention - Neil's
  lookup_one_len_unlocked().  Similar to lookup_one_len(), but gets
  called without ->i_mutex and tries to avoid ever taking it.  That, of
  course, means that it's not useful for any directory modifications,
  but things like getting inode attributes in nfds readdirplus are fine
  with that.  I really should've asked for moratorium on lookup-related
  changes this cycle, but since I hadn't done that early enough...  I
  *am* asking for that for the coming cycle, though - I'm going to try
  and get conversion of i_mutex to rwsem with ->lookup() done under lock
  taken shared.

  There will be a patch closer to the end of the window, along the lines
  of the one Linus had posted last May - mechanical conversion of
  ->i_mutex accesses to inode_lock()/inode_unlock()/inode_trylock()/
  inode_is_locked()/inode_lock_nested().  To quote Linus back then:

    -----
    |    This is an automated patch using
    |
    |        sed 's/mutex_lock(&\(.*\)->i_mutex)/inode_lock(\1)/'
    |        sed 's/mutex_unlock(&\(.*\)->i_mutex)/inode_unlock(\1)/'
    |        sed 's/mutex_lock_nested(&\(.*\)->i_mutex,[     ]*I_MUTEX_\([A-Z0-9_]*\))/inode_lock_nested(\1, I_MUTEX_\2)/'
    |        sed 's/mutex_is_locked(&\(.*\)->i_mutex)/inode_is_locked(\1)/'
    |        sed 's/mutex_trylock(&\(.*\)->i_mutex)/inode_trylock(\1)/'
    |
    |    with a very few manual fixups
    -----

  I'm going to send that once the ->i_mutex-affecting stuff in -next
  gets mostly merged (or when Linus says he's about to stop taking
  merges)"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
  nfsd: don't hold i_mutex over userspace upcalls
  fs:affs:Replace time_t with time64_t
  fs/9p: use fscache mutex rather than spinlock
  proc: add a reschedule point in proc_readfd_common()
  logfs: constify logfs_block_ops structures
  fcntl: allow to set O_DIRECT flag on pipe
  fs: __generic_file_splice_read retry lookup on AOP_TRUNCATED_PAGE
  fs: xattr: Use kvfree()
  [s390] page_to_phys() always returns a multiple of PAGE_SIZE
  nbd: use ->compat_ioctl()
  fs: use block_device name vsprintf helper
  lib/vsprintf: add %*pg format specifier
  fs: use gendisk->disk_name where possible
  poll: plug an unused argument to do_poll
  amdkfd: don't open-code memdup_user()
  cdrom: don't open-code memdup_user()
  rsxx: don't open-code memdup_user()
  mtip32xx: don't open-code memdup_user()
  [um] mconsole: don't open-code memdup_user_nul()
  [um] hostaudio: don't open-code memdup_user()
  ...
2016-01-12 17:11:47 -08:00
Linus Torvalds
4f31d774dd Merge branch 'for-linus-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger:
 "This contains beside of random fixes/cleanups two bigger changes:

   - seccomp support by Mickaël Salaün

   - IRQ rework by Anton Ivanov"

* 'for-linus-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Use race-free temporary file creation
  um: Do not set unsecure permission for temporary file
  um: Fix build error and kconfig for i386
  um: Add seccomp support
  um: Add full asm/syscall.h support
  selftests/seccomp: Remove the need for HAVE_ARCH_TRACEHOOK
  um: Fix ptrace GETREGS/SETREGS bugs
  um: link with -lpthread
  um: Update UBD to use pread/pwrite family of functions
  um: Do not change hard IRQ flags in soft IRQ processing
  um: Prevent IRQ handler reentrancy
  uml: flush stdout before forking
  uml: fix hostfs mknod()
2016-01-12 13:27:18 -08:00
Linus Torvalds
1baa5efbeb * s390: Support for runtime instrumentation within guests,
support of 248 VCPUs.
 
 * ARM: rewrite of the arm64 world switch in C, support for
 16-bit VM identifiers.  Performance counter virtualization
 missed the boat.
 
 * x86: Support for more Hyper-V features (synthetic interrupt
 controller), MMU cleanups
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "PPC changes will come next week.

   - s390: Support for runtime instrumentation within guests, support of
     248 VCPUs.

   - ARM: rewrite of the arm64 world switch in C, support for 16-bit VM
     identifiers.  Performance counter virtualization missed the boat.

   - x86: Support for more Hyper-V features (synthetic interrupt
     controller), MMU cleanups"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (115 commits)
  kvm: x86: Fix vmwrite to SECONDARY_VM_EXEC_CONTROL
  kvm/x86: Hyper-V SynIC timers tracepoints
  kvm/x86: Hyper-V SynIC tracepoints
  kvm/x86: Update SynIC timers on guest entry only
  kvm/x86: Skip SynIC vector check for QEMU side
  kvm/x86: Hyper-V fix SynIC timer disabling condition
  kvm/x86: Reorg stimer_expiration() to better control timer restart
  kvm/x86: Hyper-V unify stimer_start() and stimer_restart()
  kvm/x86: Drop stimer_stop() function
  kvm/x86: Hyper-V timers fix incorrect logical operation
  KVM: move architecture-dependent requests to arch/
  KVM: renumber vcpu->request bits
  KVM: document which architecture uses each request bit
  KVM: Remove unused KVM_REQ_KICK to save a bit in vcpu->requests
  kvm: x86: Check kvm_write_guest return value in kvm_write_wall_clock
  KVM: s390: implement the RI support of guest
  kvm/s390: drop unpaired smp_mb
  kvm: x86: fix comment about {mmu,nested_mmu}.gva_to_gpa
  KVM: x86: MMU: Use clear_page() instead of init_shadow_page_table()
  arm/arm64: KVM: Detect vGIC presence at runtime
  ...
2016-01-12 13:22:12 -08:00
Linus Torvalds
01e9d22638 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:

 - UEFI boot and runtime services support for ARM from Ard Biesheuvel
   and Roy Franz.

 - DT compatibility with old atags booting protocol for Nokia N900
   devices from Ivaylo Dimitrov.

 - PSCI firmware interface using new arm-smc calling convention from
   Jens Wiklander.

 - Runtime patching for udiv/sdiv instructions for ARMv7 CPUs that
   support these instructions from Nicolas Pitre.

 - L2x0 cache updates from Dirk B and Linus Walleij.

 - Randconfig fixes from Arnd Bergmann.

 - ARMv7M (nommu) updates from Ezequiel Garcia

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (34 commits)
  ARM: 8481/2: drivers: psci: replace psci firmware calls
  ARM: 8480/2: arm64: add implementation for arm-smccc
  ARM: 8479/2: add implementation for arm-smccc
  ARM: 8478/2: arm/arm64: add arm-smccc
  ARM: 8494/1: mm: Enable PXN when running non-LPAE kernel on LPAE processor
  ARM: 8496/1: OMAP: RX51: save ATAGS data in the early boot stage
  ARM: 8495/1: ATAGS: move save_atags() to arch/arm/include/asm/setup.h
  ARM: 8452/3: PJ4: make coprocessor access sequences buildable in Thumb2 mode
  ARM: 8482/1: l2x0: make it possible to disable outer sync from DT
  ARM: 8488/1: Make IPI_CPU_BACKTRACE a "non-secure" SGI
  ARM: 8487/1: Remove IPI_CALL_FUNC_SINGLE
  ARM: 8485/1: cpuidle: remove cpu parameter from the cpuidle_ops suspend hook
  ARM: 8484/1: Documentation: l2c2x0: Mention separate controllers explicitly
  ARM: 8483/1: Documentation: l2c: Rename l2cc to l2c2x0
  ARM: 8477/1: runtime patch udiv/sdiv instructions into __aeabi_{u}idiv()
  ARM: 8476/1: VDSO: use PTR_ERR_OR_ZERO for vma check
  ARM: 8453/2: proc-v7.S: don't locate temporary stack space in .text section
  ARM: add UEFI stub support
  ARM: wire up UEFI init and runtime support
  ARM: only consider memblocks with NOMAP cleared for linear mapping
  ...
2016-01-12 12:39:07 -08:00
Linus Torvalds
541d284be0 arm[64] perf updates for 4.5:
- Support for the CPU PMU in Cortex-A72
 
 - Add sysfs entries to describe the architected events and their
   mappings for PMUv{1-3}
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Merge tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm[64] perf updates from Will Deacon:
 "In the past, I have funnelled perf updates through the respective
  architecture trees, but now that the arm/arm64 perf driver has been
  largely consolidated under drivers/perf/, it makes more sense to send
  a separate pull, particularly as I'm listed as maintainer for all the
  files involved.  I offered the branch to arm-soc, but Arnd suggested
  that I just send it to you directly.

  So, here is the arm/arm64 perf queue for 4.5.  The main features are
  described below, but the most useful change is from Drew, which
  advertises our architected event mapping in sysfs so that the perf
  tool is a lot more user friendly and no longer requires the use of
  magic hex constants for profiling common events.

   - Support for the CPU PMU in Cortex-A72

   - Add sysfs entries to describe the architected events and their
     mappings for PMUv{1-3}"

* tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: perf: add support for Cortex-A72
  arm64: perf: add format entry to describe event -> config mapping
  ARM: perf: add format entry to describe event -> config mapping
  arm64: kernel: enforce pmuserenr_el0 initialization and restore
  arm64: perf: Correct Cortex-A53/A57 compatible values
  arm64: perf: Add event descriptions
  arm64: perf: Convert event enums to #defines
  arm: perf: Add event descriptions
  arm: perf: Convert event enums to #defines
  drivers/perf: kill armpmu_register
2016-01-12 12:29:25 -08:00
Linus Torvalds
fa5fd7c628 arm64 updates for 4.5:
- Support for a separate IRQ stack, although we haven't reduced the size
   of our thread stack just yet since we don't have enough data to
   determine a safe value
 
 - Refactoring of our EFI initialisation and runtime code into
   drivers/firmware/efi/ so that it can be reused by arch/arm/.
 
 - Ftrace improvements when unwinding in the function graph tracer
 
 - Document our silicon errata handling process
 
 - Cache flushing optimisation when mapping executable pages
 
 - Support for hugetlb mappings using the contiguous hint in the pte
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "Here is the core arm64 queue for 4.5.  As you might expect, the
  Christmas break resulted in a number of patches not making the final
  cut, so 4.6 is likely to be larger than usual.  There's still some
  useful stuff here, however, and it's detailed below.

  The EFI changes have been Reviewed-by Matt and the memblock change got
  an "OK" from akpm.

  Summary:

   - Support for a separate IRQ stack, although we haven't reduced the
     size of our thread stack just yet since we don't have enough data
     to determine a safe value

   - Refactoring of our EFI initialisation and runtime code into
     drivers/firmware/efi/ so that it can be reused by arch/arm/.

   - Ftrace improvements when unwinding in the function graph tracer

   - Document our silicon errata handling process

   - Cache flushing optimisation when mapping executable pages

   - Support for hugetlb mappings using the contiguous hint in the pte"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (45 commits)
  arm64: head.S: use memset to clear BSS
  efi: stub: define DISABLE_BRANCH_PROFILING for all architectures
  arm64: entry: remove pointless SPSR mode check
  arm64: mm: move pgd_cache initialisation to pgtable_cache_init
  arm64: module: avoid undefined shift behavior in reloc_data()
  arm64: module: fix relocation of movz instruction with negative immediate
  arm64: traps: address fallout from printk -> pr_* conversion
  arm64: ftrace: fix a stack tracer's output under function graph tracer
  arm64: pass a task parameter to unwind_frame()
  arm64: ftrace: modify a stack frame in a safe way
  arm64: remove irq_count and do_softirq_own_stack()
  arm64: hugetlb: add support for PTE contiguous bit
  arm64: Use PoU cache instr for I/D coherency
  arm64: Defer dcache flush in __cpu_copy_user_page
  arm64: reduce stack use in irq_handler
  arm64: mm: ensure that the zero page is visible to the page table walker
  arm64: Documentation: add list of software workarounds for errata
  arm64: mm: place __cpu_setup in .text
  arm64: cmpxchg: Don't incldue linux/mmdebug.h
  arm64: mm: fold alternatives into .init
  ...
2016-01-12 12:23:33 -08:00
Michael S. Tsirkin
6a65d26385 asm-generic: implement virt_xxx memory barriers
Guests running within virtual machines might be affected by SMP effects even if
the guest itself is compiled without SMP support.  This is an artifact of
interfacing with an SMP host while running an UP kernel.  Using mandatory
barriers for this use-case would be possible but is often suboptimal.

In particular, virtio uses a bunch of confusing ifdefs to work around
this, while xen just uses the mandatory barriers.

To better handle this case, low-level virt_mb() etc macros are made available.
These are implemented trivially using the low-level __smp_xxx macros,
the purpose of these wrappers is to annotate those specific cases.

These have the same effect as smp_mb() etc when SMP is enabled, but generate
identical code for SMP and non-SMP systems. For example, virtual machine guests
should use virt_mb() rather than smp_mb() when synchronizing against a
(possibly SMP) host.

Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2016-01-12 20:46:59 +02:00
Mark Brown
78ae902552 Merge remote-tracking branches 'regulator/topic/pv88090', 'regulator/topic/qcom-smd', 'regulator/topic/tps6105x', 'regulator/topic/tps65086' and 'regulator/topic/tps65218' into regulator-next 2016-01-12 18:26:10 +00:00
Mark Brown
3fbd90bf6b Merge remote-tracking branches 'regulator/topic/lp8788', 'regulator/topic/mt6311', 'regulator/topic/optional', 'regulator/topic/palmas' and 'regulator/topic/pv88060' into regulator-next 2016-01-12 18:26:07 +00:00
Mark Brown
8bd31df8de Merge remote-tracking branches 'regulator/topic/const', 'regulator/topic/lm363x', 'regulator/topic/lockdep' and 'regulator/topic/lp872x' into regulator-next 2016-01-12 18:26:05 +00:00
Linus Torvalds
03891f9c85 - The most significant set of changes this cycle is the Forward Error
Correction (FEC) support that has been added to the DM verity target.
   Google uses DM verity on all Android devices and it is believed that
   this FEC support will enable DM verity to recover from storage
   failures seen since DM verity was first deployed as part of Android.
 
 - A stable fix for a race in the destruction of DM thin pool's workqueue
 
 - A stable fix for hung IO if a DM snapshot copy hit an error
 
 - A few small cleanups in DM core and DM persistent data.
 
 - A couple DM thinp range discard improvements (address atomicity of
   finding a range and the efficiency of discarding a partially mapped
   thin device)
 
 - Add ability to debug DM bufio leaks by recording stack trace when a
   buffer is allocated.  Upon detected leak the recorded stack is dumped.
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Merge tag 'dm-4.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:

 - The most significant set of changes this cycle is the Forward Error
   Correction (FEC) support that has been added to the DM verity target.

   Google uses DM verity on all Android devices and it is believed that
   this FEC support will enable DM verity to recover from storage
   failures seen since DM verity was first deployed as part of Android.

 - A stable fix for a race in the destruction of DM thin pool's
   workqueue

 - A stable fix for hung IO if a DM snapshot copy hit an error

 - A few small cleanups in DM core and DM persistent data.

 - A couple DM thinp range discard improvements (address atomicity of
   finding a range and the efficiency of discarding a partially mapped
   thin device)

 - Add ability to debug DM bufio leaks by recording stack trace when a
   buffer is allocated.  Upon detected leak the recorded stack is
   dumped.

* tag 'dm-4.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm snapshot: fix hung bios when copy error occurs
  dm thin: bump thin and thin-pool target versions
  dm thin: fix race condition when destroying thin pool workqueue
  dm space map metadata: remove unused variable in brb_pop()
  dm verity: add ignore_zero_blocks feature
  dm verity: add support for forward error correction
  dm verity: factor out verity_for_bv_block()
  dm verity: factor out structures and functions useful to separate object
  dm verity: move dm-verity.c to dm-verity-target.c
  dm verity: separate function for parsing opt args
  dm verity: clean up duplicate hashing code
  dm btree: factor out need_insert() helper
  dm bufio: use BUG_ON instead of conditional call to BUG
  dm bufio: store stacktrace in buffers to help find buffer leaks
  dm bufio: return NULL to improve code clarity
  dm block manager: cleanup code that prints stacktrace
  dm: don't save and restore bi_private
  dm thin metadata: make dm_thin_find_mapped_range() atomic
  dm thin metadata: speed up discard of partially mapped volumes
2016-01-11 22:25:00 -08:00
Linus Torvalds
47c62e4be7 media updates for v4.5-rc1
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Merge tag 'media/v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "The part of patches for Kernel 4.5.  There's nothing really big here:

   - driver-specific headers for media devices were moved to separate
     directories, in order to make clear what headers belong to the core
     kABI and require documentation

   - Platform data for media drivers were moved from include/media to
     include/linux/platform_data/media

   - add a driver for cs3308 8-channel volume control, used on some
     high-end capture boards

   - lirc.h kAPI header were added at include/uapi/linux

   - Driver cleanups, new board additions and improvements"

* tag 'media/v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (204 commits)
  [media] rc: sunxi-cir: Initialize the spinlock properly
  [media] rtl2832: do not filter out slave TS null packets
  [media] rtl2832: print reg number on error case
  [media] rtl28xxu: return demod reg page from driver cache
  [media] coda: enable MPEG-2 ES decoding
  [media] coda: don't start streaming without queued buffers
  [media] coda: hook up vidioc_prepare_buf
  [media] coda: relax coda_jpeg_check_buffer for trailing bytes
  [media] coda: make to_coda_video_device static
  [media] s5p-mfc: remove volatile attribute from MFC register addresses
  [media] s5p-mfc: merge together s5p_mfc_hw_call and s5p_mfc_hw_call_void
  [media] s5p-mfc: use spinlock to protect MFC context
  [media] s5p-mfc: remove unnecessary callbacks
  [media] s5p-mfc: make queue cleanup code common
  [media] s5p-mfc: use one implementation of s5p_mfc_get_new_ctx
  [media] s5p-mfc: constify s5p_mfc_codec_ops structures
  [media] au8522: Avoid memory leak for device config data
  [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf
  [media] uvcvideo: small cleanup in uvc_video_clock_update()
  [media] uvcvideo: Fix reading the current exposure value of UVC
  ...
2016-01-11 22:17:44 -08:00
Linus Torvalds
2c487121e3 - LED core improvements:
- use EXPORT_SYMBOL_GPL consistently,
         - add two new LED_BLINK_ flags,
         - rename brightness_set_sync op to brightness_set_blocking,
         - add led_set_brightness_nosleep{nopm} functions,
         - use set_brightness_work for the blocking op,
         - drivers shouldn't enforce SYNC/ASYNC brightness setting,
         - turn off the LED and wait for completion on unregistering LED
           class device,
         - add managed version of led_trigger_register,
         - add description of brightness setting API to the LED class doc.
 
 - Remove work queues from drivers: leds-tlc591xx, leds-88pm860x, leds-adp5520,
         leds-bd2802, leds-blinkm, leds-lm3533, leds-lm3642, leds-pca9532,
         leds-lp3944, leds-lp55xx, leds-lp8788, leds-lp8860, leds-pca955x,
         leds-pca963x, leds-wm831x, leds-da903x, leds-da9052, leds-dac124d085,
         leds-lt3593, leds-max8997, leds-mc13783, leds-regulator, leds-wm8350,
         leds-max77693, leds-aat1290, leds-ktd2692, leds-gpio, leds-pwm,
         leds-lm355x, leds-ns2.
 
 - Replace brightness_set op with a new brightness_set_blocking op to make the
   drivers compatible with led triggers: leds-ipaq-micro, leds-powernv.
 
 - Add missing of_node_put: leds-ktd2692, leds-aat1290, leds-max77693.
 
 - Make the driver explicitly non-modular: ledtrig-cpu, ledtrig-ide-disk,
         leds-syscon.
 
 - Improvements to leds-bcm6328:
         - reuse bcm6328_led_set() instead of copying its functionality,
         - swap LED ON and OFF definitions,
         - improve blink support,
         - simplify duplicated unlock in bcm6328_blink_set,
         - add little endian support,
         - remove unneded lock when checking initial LED status,
         - add HAS_IOMEM dependency,
         - code cleaning.
 
 - Improvements to leds-bcm6358:
         - use bcm6358_led_set() in order to get rid of the lock,
         - merge bcm6358_led_mode and bcm6358_led_set,
         - add little endian support,
         - remove unneded lock when checking initial LED status,
         - add HAS_IOMEM dependency,
         - remove unneeded busy status check.
 
 - Call led_pwm_set() in leds-pwm to enforce default LED_OFF.
 
 - Fix duration to be msec instead of jiffies: ledtrig-transient.
 
 - Removing NULL check: leds-powernv.
 
 - Use platform_register/unregister_drivers(): leds-sunfire.
 
 - Fix module license specification: ledtrig-oneshot.
 
 - Fix driver description and make license match the header: leds-pwm.
 
 - Remove checking for state < 1 in flash_strobe_store(): led-class-flash.
 
 - Use led_set_brightness_sync for torch brightness: v4l2-flash-led-class
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Merge tag 'leds-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED subsystem updates from Jacek Anaszewski:
 "Besides regular driver updates, we introduce a portion of LED core
  improvements, that allow to avoid the need for using work queues in
  the LED class drivers, that set brightness in a blocking way.

  Affected LED class drivers are being optimized accordingly.

   - LED core improvements:
        - use EXPORT_SYMBOL_GPL consistently,
        - add two new LED_BLINK_ flags,
        - rename brightness_set_sync op to brightness_set_blocking,
        - add led_set_brightness_nosleep{nopm} functions,
        - use set_brightness_work for the blocking op,
        - drivers shouldn't enforce SYNC/ASYNC brightness setting,
        - turn off the LED and wait for completion on unregistering LED
          class device,
        - add managed version of led_trigger_register,
        - add description of brightness setting API to the LED class doc.

   - Remove work queues from drivers: leds-tlc591xx, leds-88pm860x, leds-adp5520,
        leds-bd2802, leds-blinkm, leds-lm3533, leds-lm3642, leds-pca9532,
        leds-lp3944, leds-lp55xx, leds-lp8788, leds-lp8860, leds-pca955x,
        leds-pca963x, leds-wm831x, leds-da903x, leds-da9052, leds-dac124d085,
        leds-lt3593, leds-max8997, leds-mc13783, leds-regulator, leds-wm8350,
        leds-max77693, leds-aat1290, leds-ktd2692, leds-gpio, leds-pwm,
        leds-lm355x, leds-ns2.

   - Replace brightness_set op with a new brightness_set_blocking op to
     make the drivers compatible with led triggers: leds-ipaq-micro,
     leds-powernv.

   - Add missing of_node_put: leds-ktd2692, leds-aat1290, leds-max77693.

   - Make the driver explicitly non-modular: ledtrig-cpu,
     ledtrig-ide-disk, leds-syscon.

   - Improvements to leds-bcm6328:
        - reuse bcm6328_led_set() instead of copying its functionality,
        - swap LED ON and OFF definitions,
        - improve blink support,
        - simplify duplicated unlock in bcm6328_blink_set,
        - add little endian support,
        - remove unneded lock when checking initial LED status,
        - add HAS_IOMEM dependency,
        - code cleaning.

   - Improvements to leds-bcm6358:
        - use bcm6358_led_set() in order to get rid of the lock,
        - merge bcm6358_led_mode and bcm6358_led_set,
        - add little endian support,
        - remove unneded lock when checking initial LED status,
        - add HAS_IOMEM dependency,
        - remove unneeded busy status check.

   - Call led_pwm_set() in leds-pwm to enforce default LED_OFF.

   - Fix duration to be msec instead of jiffies: ledtrig-transient.

   - Removing NULL check: leds-powernv.

   - Use platform_register/unregister_drivers(): leds-sunfire.

   - Fix module license specification: ledtrig-oneshot.

   - Fix driver description and make license match the header: leds-pwm.

   - Remove checking for state < 1 in flash_strobe_store():
     led-class-flash.

   - Use led_set_brightness_sync for torch brightness:
     v4l2-flash-led-class"

* tag 'leds-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: (68 commits)
  leds: add HAS_IOMEM dependency to LEDS_BCM6328/LEDS_BCM6358
  leds: core: add managed version of led_trigger_register
  leds: bcm6358: remove unneeded busy status check
  leds: bcm6328: improve blink support
  leds: bcm6358: merge bcm6358_led_mode and bcm6358_led_set
  leds: bcm6328: simplify duplicated unlock in bcm6328_blink_set
  leds: bcm6358: add little endian support
  leds: bcm6328: add little endian support
  leds: bcm6358: remove unneded lock when checking initial LED status
  leds: bcm6358: Use bcm6358_led_set() in order to get rid of the lock
  leds: bcm6328: remove unneded lock when checking initial LED
  leds: bcm6328: code cleaning
  leds: syscon: Make the driver explicitly non-modular
  leds: ledtrig-ide-disk: Make the driver explicitly non-modular
  leds: ledtrig-cpu: Make the driver explicitly non-modular
  leds: sunfire: Use platform_register/unregister_drivers()
  leds: max77693: Add missing of_node_put
  leds: aat1290: Add missing of_node_put
  leds: powernv: Implement brightness_set_blocking op
  leds: ipaq-micro: Implement brightness_set_blocking op
  ...
2016-01-11 20:40:48 -08:00
Linus Torvalds
d870a9d5e3 * hide EDAC workqueue from users (Borislav Petkov)
* edac_subsys init/teardown cleanup (Borislav Petkov)
 
 * make mpc85xx-pci-edac a platform device (Scott Wood)
 
 * sb_edac KNL gen2 support (Jim Snow)
 
 * other small cleanups all over the place
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Merge tag 'edac_for_4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - hide EDAC workqueue from users (Borislav Petkov)

 - edac_subsys init/teardown cleanup (Borislav Petkov)

 - make mpc85xx-pci-edac a platform device (Scott Wood)

 - sb_edac KNL gen2 support (Jim Snow)

 - other small cleanups all over the place

* tag 'edac_for_4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, i5100: Use to_delayed_work()
  MAINTAINERS: Fix EDAC repo URLs format
  EDAC, sb_edac: Set fixed DIMM width on Xeon Knights Landing
  EDAC: Rework workqueue handling
  EDAC: Make edac_device workqueue setup/teardown functions static
  EDAC: Remove edac_get_sysfs_subsys() error handling
  EDAC: Unexport and make edac_subsys static
  EDAC: Rip out the edac_subsys reference counting
  EDAC: Robustify workqueues destruction
  EDAC, mc_sysfs: Fix freeing bus' name
  EDAC, mpc85xx: Make mpc85xx-pci-edac a platform device
  EDAC, sb_edac: Add Knights Landing (Xeon Phi gen 2) support
  EDAC, sb_edac: Add support for duplicate device IDs
  EDAC, sb_edac: Virtualize several hard-coded functions
  EDAC, mv64x60: Use platform_register/unregister_drivers()
  EDAC, mpc85xx: Use platform_register/unregister_drivers()
  EDAC: Add DDR4 flag
  EDAC: Remove references to bluesmoke.sourceforge.net
  EDAC, pci: Remove old disabled code
2016-01-11 20:36:20 -08:00
Linus Torvalds
2634bf2550 Notable hwmon updates for v4.5:
Add basic support for NCT6683 on Mitac boards
 Add support for AMD new 15h processors to fam15h_power driver
 Add pmbus client driver for LTC3815
 Remove htu21 driver (now supported by iio subsystem)
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Merge tag 'hwmon-for-linus-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "Notable hwmon changes:

   - Add basic support for NCT6683 on Mitac boards
   - Add support for AMD new 15h processors to fam15h_power driver
   - Add pmbus client driver for LTC3815
   - Remove htu21 driver (now supported by iio subsystem)"

* tag 'hwmon-for-linus-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (nct6683) Add basic support for NCT6683 on Mitac boards
  hwmon: (ibmaem) constify aem_rw_sensor_template and aem_ro_sensor_template structures
  hwmon: (nct6683,nct6775) constify sensor_template_group structures
  MAINTAINERS: change the maintainer of fam15h_power driver
  hwmon: (fam15h_power) Add support for AMD new 15h processors
  hwmon: (pmbus) Add client driver for LTC3815
  hwmon: (htu21) Remove driver
2016-01-11 20:28:38 -08:00
Tejun Heo
6255c46fa0 cgroup: rename cgroup documentations
cgroup-legacy may be too loaded.  Rename the docs so that they're
postfixed with v1 and v2.

* s/cgroup-legacy/cgroup-v1/
* s/cgroup.txt/cgroup-v2.txt/

Signed-off-by: Tejun Heo <tj@kernel.org>
2016-01-11 23:14:51 -05:00
Linus Torvalds
581dbc8bfc This is the bulk of pin control patches for the v4.5
series:
 
 - New drivers:
   - PXA2xx pin controller support
   - Broadcom NSP pin controller support
 
 - New subdrivers:
   - Samsung EXYNOS5410 support
   - Qualcomm MSM8996 support
   - Qualcomm PM8994 support
   - Qualcomm PM8994 MPP support
   - Allwinner sunxi H3 support
   - Allwinner sunxi A80 support
   - Rockchip RK3228 support
 
 - Rename the Cygnus pinctrl driver to "iproc" as it is more
   generic than was originally thought.
 
 - A bunch of Lantiq/Xway updates especially from the OpenWRT
   people.
 
 - Several refactorings for the Super-H SH PFC pin controllers.
   Adding SCIF_CLK support.
 
 - Several fixes to the Atlas 7 driver.
 
 - Various fixes all over the place.
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Merge tag 'pinctrl-v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control patches for the v4.5 series.

  Notably I have a patch to driver core from Stephen Boyd in the pull
  request, this has been ACKed by Greg so it should be OK.  The internal
  API needed some tweaking to allow modular Qualcomm pin controllers.

  There is a bit of development history in here but it should all add up
  nicely and has boiled in linux-next.  For example I merged in v4.4-rc5
  to get rid of some nasty merge conflicts.

  Summary:

   - New drivers:
      - PXA2xx pin controller support
      - Broadcom NSP pin controller support

   - New subdrivers:
      - Samsung EXYNOS5410 support
      - Qualcomm MSM8996 support
      - Qualcomm PM8994 support
      - Qualcomm PM8994 MPP support
      - Allwinner sunxi H3 support
      - Allwinner sunxi A80 support
      - Rockchip RK3228 support

   - Rename the Cygnus pinctrl driver to "iproc" as it is more generic
     than was originally thought.

   - A bunch of Lantiq/Xway updates especially from the OpenWRT people.

   - Several refactorings for the Super-H SH PFC pin controllers.
     Adding SCIF_CLK support.

   - Several fixes to the Atlas 7 driver.

   - Various fixes all over the place"

* tag 'pinctrl-v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (91 commits)
  pinctrl: mediatek: Modify pinctrl bindings for mt2701
  Revert "pinctrl: qcom: make PMIC drivers bool"
  pinctrl: qcom: Use platform_irq_count() instead of of_irq_count()
  driver-core: platform: Add platform_irq_count()
  pinctrl: lantiq: 2 pins have the wrong mux list
  pinctrl: qcom: make PMIC drivers bool
  pinctrl: nsp-gpio: forever loop in nsp_gpio_get_strength()
  pinctrl: mediatek: convert to arch_initcall
  pinctrl: bcm2835: Fix memory leak in error path
  pinctrl: mediatek: add missing of_node_put
  pinctrl: rockchip: add missing of_node_put
  pinctrl: sh-pfc: add missing of_node_put
  pinctrl: sirf: add missing of_node_put
  pinctrl-tegra: add missing of_node_put
  pinctrl: sunxi: Add A80 special pin controller
  pinctrl: bcm/cygnys/iproc: fixup rebase issue
  pinctrl: fixup problematic flag
  MAINTAINERS: Add co-maintainer for Renesas Pin Controllers
  pinctrl: sh-pfc: r8a7791: add EtherAVB pin groups
  pinctrl: sh-pfc: r8a7795: Add SATA support
  ...
2016-01-11 20:05:39 -08:00
Linus Torvalds
fb591fbd0a MMC core:
- Optimize boot time by detecting cards simultaneously
  - Make runtime resume default behavior for MMC/SD
  - Enable MMC/SD/SDIO devices to suspend/resume asynchronously
  - Allow more than 8 partitions per card
  - Introduce MMC_CAP2_NO_SDIO to prevent unsupported SDIO commands
  - Support the standard DT wakeup-source property
  - Fix driver strength switching for HS200 and HS400
  - Fix switch command timeout
  - Fix invalid vdd in voltage switch power cycle for SDIO
 
 MMC host:
  - sdhci: Restore behavior when setting VDD via external regulator
  - sdhci: A couple of changes/fixes related to the dma support
  - sdhci-tegra: Add Tegra210 support
  - sdhci-tegra: Support for UHS-I cards including tuning support
  - sdhci-of-at91: Add PM support
  - sh_mmcif: Rework dma channel handling
  - mvsdio: Delete platform data code path
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Merge tag 'mmc-v4.5' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Optimize boot time by detecting cards simultaneously
   - Make runtime resume default behavior for MMC/SD
   - Enable MMC/SD/SDIO devices to suspend/resume asynchronously
   - Allow more than 8 partitions per card
   - Introduce MMC_CAP2_NO_SDIO to prevent unsupported SDIO commands
   - Support the standard DT wakeup-source property
   - Fix driver strength switching for HS200 and HS400
   - Fix switch command timeout
   - Fix invalid vdd in voltage switch power cycle for SDIO

  MMC host:
   - sdhci: Restore behavior when setting VDD via external regulator
   - sdhci: A couple of changes/fixes related to the dma support
   - sdhci-tegra: Add Tegra210 support
   - sdhci-tegra: Support for UHS-I cards including tuning support
   - sdhci-of-at91: Add PM support
   - sh_mmcif: Rework dma channel handling
   - mvsdio: Delete platform data code path"

* tag 'mmc-v4.5' of git://git.linaro.org/people/ulf.hansson/mmc: (52 commits)
  mmc: dw_mmc: remove the unused quirks
  mmc: sdhci-pci: use to_pci_dev()
  mmc: cb710: use to_platform_device()
  mmc: tegra: use correct accessor for misc ctrl register
  mmc: tegra: enable UHS-I modes
  mmc: tegra: implement UHS tuning
  mmc: tegra: disable SPI_MODE_CLKEN
  mmc: tegra: implement module external clock change
  mmc: sdhci: restore behavior when setting VDD via external regulator
  mmc: It is not an error for the card to be removed while suspended
  mmc: block: Allow more than 8 partitions per card
  mmc: core: Optimize boot time by detecting cards simultaneously
  mmc: dw_mmc: use resource_size_t to store physical address
  mmc: core: fix __mmc_switch timeout caused by preempt
  mmc: usdhi6rol0: handle NULL data in timeout
  mmc: of_mmc_spi: Add IRQF_ONESHOT to interrupt flags
  mmc: mediatek: change some dev_err to dev_dbg
  mmc: enable MMC/SD/SDIO device to suspend/resume asynchronously
  mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off()
  mmc: sdhci: 64-bit DMA actually has 4-byte alignment
  ...
2016-01-11 19:39:09 -08:00
Linus Torvalds
8c930204ce Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:
 "Mostly low level driver specific changes.

  Two changes are somewhat noteworthy.  First, Dan's patchset to support
  per-port msix interrupt handling for ahci, which was tried last cycle
  but had to be backed out due to a couple issues, is back and seems to
  be working fine.  Second, libata exception handling now uses
  usleep_range() instead of msleep() for sleeps < 20ms which can make
  things snappier in some corner cases"

* 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: skip debounce delay on link resume
  ata: ahci_brcmstb: disable DIPM support
  ata: ahci_brcmstb: enable support for ALPM
  drivers: libata-core: Use usleep_range() instead of msleep() for short sleeps (<20 ms)
  sata_sx4: correctly handling failed allocation
  ata: ahci_brcmstb: add support for MIPS-based platforms
  ahci: qoriq: Adjust the default register values on ls1021a
  ahci: qoriq: Update the default Rx watermark value
  ahci: qoriq: Adjust the default register values on ls1043a
  ahci: compile out msi/msix infrastructure
  ata: core: fix irq description on AHCI single irq systems
  ata: ahci_brcmstb: remove unused definitions
  ata: ahci_brcmstb: add a quirk for MIPS-based platforms
  ata: ahci_brcmstb: disable NCQ for MIPS-based platforms
  ata: sata_rcar: Remove obsolete platform_device_id entries
  sata_rcar: Add compatible string for r8a7795
  ahci: kill 'intr_status'
  ahci: switch from 'threaded' to 'hardirq' interrupt handling
  ahci: per-port msix support
2016-01-11 19:33:59 -08:00
Linus Torvalds
0f8c790103 Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue update from Tejun Heo:
 "Workqueue changes for v4.5.  One cleanup patch and three to improve
  the debuggability.

  Workqueue now has a stall detector which dumps workqueue state if any
  worker pool hasn't made forward progress over a certain amount of time
  (30s by default) and also triggers a warning if a workqueue which can
  be used in memory reclaim path tries to wait on something which can't
  be.

  These should make workqueue hangs a lot easier to debug."

* 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: simplify the apply_workqueue_attrs_locked()
  workqueue: implement lockup detector
  watchdog: introduce touch_softlockup_watchdog_sched()
  workqueue: warn if memory reclaim tries to flush !WQ_MEM_RECLAIM workqueue
2016-01-11 18:53:13 -08:00
Linus Torvalds
3d116a66ed Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
 "The irq department provides:

   - Support for MSI to wire bridges and a first user of it

   - More ACPI support for ARM/GIC

   - A new TS-4800 interrupt controller driver

   - RCU based free of interrupt descriptors to support the upcoming
     Intel VMD technology without introducing a locking nightmare

   - The usual pile of fixes and updates to drivers and core code"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
  irqchip/omap-intc: Add support for spurious irq handling
  irqchip/zevio: Use irq_data_get_chip_type() helper
  irqchip/omap-intc: Remove duplicate setup for IRQ chip type handler
  irqchip/ts4800: Add TS-4800 interrupt controller
  irqchip/ts4800: Add documentation for TS-4800 interrupt controller
  irq/platform-MSI: Increase the maximum MSIs the MSI framework can support
  irqchip/gicv2m: Miscellaneous fixes for v2m resources and SPI ranges
  irqchip/bcm2836: Make code more readable
  irqchip/bcm2836: Tolerate IRQs while no flag is set in ISR
  irqchip/bcm2836: Add SMP support for the 2836
  irqchip/bcm2836: Fix initialization of the LOCAL_IRQ_CNT timers
  irqchip/gic-v2m: acpi: Introducing GICv2m ACPI support
  irqchip/gic-v2m: Refactor to prepare for ACPI support
  irqdomain: Introduce is_fwnode_irqchip helper
  acpi: pci: Setup MSI domain for ACPI based pci devices
  genirq/msi: Export functions to allow MSI domains in modules
  irqchip/mbigen: Implement the mbigen irq chip operation functions
  irqchip/mbigen: Create irq domain for each mbigen device
  irqchip/mgigen: Add platform device driver for mbigen device
  dt-bindings: Documents the mbigen bindings
  ...
2016-01-11 18:28:06 -08:00
Dmitry Torokhov
009f773836 Merge branch 'next' into for-linus
Prepare first round of input updates for 4.5 merge window.
2016-01-11 17:47:25 -08:00
Masahiro Yamada
000afe892e DMA-API: fix confusing sentence in Documentation/DMA-API.txt
Change the phrase "handed off to the driver" to "handed off to the
device" as in the paragraph below.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-01-11 18:29:00 -07:00
SeongJae Park
feb4d8887e Documentation: translations: update linux cross reference link
The old link to source code cross reference does not work now. Though
the link has updated by commit 1d12554f0a
("Documentation: HOWTO: update code cross reference link"), there are
few obsolete links yet. This commit update them.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-01-11 18:26:58 -07:00
Manuel Pégourié-Gonnard
9a2885e662 Documentation: fix typo in CodingStyle
Simple typo: "it" for "is".

Signed-off-by: Manuel Pégourié-Gonnard <mpg@elzevir.fr>
Cc: Trivial Patch Monkey <trivial@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-01-11 18:18:16 -07:00
Rafael J. Wysocki
b366f97632 Merge branch 'pm-cpufreq'
* pm-cpufreq: (30 commits)
  Documentation: cpufreq: intel_pstate: enhance documentation
  cpufreq-dt: fix handling regulator_get_voltage() result
  cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC
  cpufreq: mt8173: migrate to use operating-points-v2 bindings
  cpufreq: Simplify core code related to boost support
  cpufreq: acpi-cpufreq: Simplify boost-related code
  cpufreq: Make cpufreq_boost_supported() static
  blackfin-cpufreq: Mark cpu_set_cclk() as static
  blackfin-cpufreq: Change return type of cpu_set_cclk() to that of clk_set_rate()
  dt: cpufreq: st: Provide bindings for ST's CPUFreq implementation
  cpufreq: st: Provide runtime initialised driver for ST's platforms
  cpufreq: mt8173: Move resources allocation into ->probe()
  cpufreq: intel_pstate: Account for IO wait time
  cpufreq: intel_pstate: Account for non C0 time
  cpufreq: intel_pstate: Configurable algorithm to get target pstate
  cpufreq: mt8173: check return value of regulator_get_voltage() call
  cpufreq: mt8173: remove redundant regulator_get_voltage() call
  cpufreq: mt8173: add CPUFREQ_HAVE_GOVERNOR_PER_POLICY flag
  cpufreq: qoriq: Register cooling device based on device tree
  cpufreq: pcc-cpufreq: update default value of cpuinfo_transition_latency
  ...
2016-01-12 01:11:25 +01:00
Rafael J. Wysocki
7f4a3702bd Merge branch 'pm-opp'
* pm-opp:
  PM / OPP: Use snprintf() instead of sprintf()
  PM / OPP: Set cpu_dev->id in cpumask first
  PM / OPP: Fix parsing of opp-microvolt and opp-microamp properties
  PM / OPP: Parse 'opp-<prop>-<name>' bindings
  PM / OPP: Parse 'opp-supported-hw' binding
  PM / OPP: Add missing doc comments
  ARM: dts: exynos4412: Rename OPP nodes as opp@<opp-hz>
  PM / OPP: Rename OPP nodes as opp@<opp-hz>
  PM / OPP: Remove 'operating-points-names' binding
  PM / OPP: Add {opp-microvolt|opp-microamp}-<name> binding
  PM / OPP: Add "opp-supported-hw" binding
  PM / OPP: Add debugfs support
2016-01-12 01:11:14 +01:00
Rafael J. Wysocki
92266e1de4 Merge branches 'pm-pci' and 'pm-core'
* pm-pci:
  PCI / PM: Fix small typo in documentation
  PCI / PM: constify pci_platform_pm_ops structure

* pm-core:
  PM / core: fix typo in documentation
  PM / runtime: Add new helper for conditional usage count incrementation
  MAINTAINERS: Add an entry for the PM core
  PM / runtime: Re-init runtime PM states at probe error and driver unbind
  PM / sleep: prohibit devices probing during suspend/hibernation
2016-01-12 01:10:52 +01:00
Jaegeuk Kim
d0239e1bf5 f2fs: detect idle time depending on user behavior
This patch adds last time that user requested filesystem operations.
This information is used to detect whether system is idle or not later.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-01-11 15:56:37 -08:00
Linus Torvalds
4f19b8803b Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic updates from Ingo Molnar:
 "The main changes in this cycle were:

   - introduce optimized single IPI sending methods on modern APICs
     (Linus Torvalds, Thomas Gleixner)

   - kexec/crash APIC handling fixes and enhancements (Hidehiro Kawai)

   - extend lapic vector saving/restoring to the CMCI (MCE) vector as
     well (Juergen Gross)

   - various fixes and enhancements (Jake Oshins, Len Brown)"

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  x86/irq: Export functions to allow MSI domains in modules
  Documentation: Document kernel.panic_on_io_nmi sysctl
  x86/nmi: Save regs in crash dump on external NMI
  x86/apic: Introduce apic_extnmi command line parameter
  kexec: Fix race between panic() and crash_kexec()
  panic, x86: Allow CPUs to save registers even if looping in NMI context
  panic, x86: Fix re-entrance problem due to panic on NMI
  x86/apic: Fix the saving and restoring of lapic vectors during suspend/resume
  x86/smpboot: Re-enable init_udelay=0 by default on modern CPUs
  x86/smp: Remove single IPI wrapper
  x86/apic: Use default send single IPI wrapper
  x86/apic: Provide default send single IPI wrapper
  x86/apic: Implement single IPI for apic_noop
  x86/apic: Wire up single IPI for apic_numachip
  x86/apic: Wire up single IPI for x2apic_uv
  x86/apic: Implement single IPI for x2apic_phys
  x86/apic: Wire up single IPI for bigsmp_apic
  x86/apic: Remove pointless indirections from bigsmp_apic
  x86/apic: Wire up single IPI for apic_physflat
  x86/apic: Remove pointless indirections from apic_physflat
  ...
2016-01-11 15:37:06 -08:00
Linus Torvalds
5cb52b5e16 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
 "Kernel side changes:

   - Intel Knights Landing support.  (Harish Chegondi)

   - Intel Broadwell-EP uncore PMU support.  (Kan Liang)

   - Core code improvements.  (Peter Zijlstra.)

   - Event filter, LBR and PEBS fixes.  (Stephane Eranian)

   - Enable cycles:pp on Intel Atom.  (Stephane Eranian)

   - Add cycles:ppp support for Skylake.  (Andi Kleen)

   - Various x86 NMI overhead optimizations.  (Andi Kleen)

   - Intel PT enhancements.  (Takao Indoh)

   - AMD cache events fix.  (Vince Weaver)

  Tons of tooling changes:

   - Show random perf tool tips in the 'perf report' bottom line
     (Namhyung Kim)

   - perf report now defaults to --group if the perf.data file has
     grouped events, try it with:

      # perf record -e '{cycles,instructions}' -a sleep 1
      [ perf record: Woken up 1 times to write data ]
      [ perf record: Captured and wrote 1.093 MB perf.data (1247 samples) ]
      # perf report
      # Samples: 1K of event 'anon group { cycles, instructions }'
      # Event count (approx.): 1955219195
      #
      #       Overhead  Command     Shared Object      Symbol

         2.86%   0.22%  swapper     [kernel.kallsyms]  [k] intel_idle
         1.05%   0.33%  firefox     libxul.so          [.] js::SetObjectElement
         1.05%   0.00%  kworker/0:3 [kernel.kallsyms]  [k] gen6_ring_get_seqno
         0.88%   0.17%  chrome      chrome             [.] 0x0000000000ee27ab
         0.65%   0.86%  firefox     libxul.so          [.] js::ValueToId<(js::AllowGC)1>
         0.64%   0.23%  JS Helper   libxul.so          [.] js::SplayTree<js::jit::LiveRange*, js::jit::LiveRange>::splay
         0.62%   1.27%  firefox     libxul.so          [.] js::GetIterator
         0.61%   1.74%  firefox     libxul.so          [.] js::NativeSetProperty
         0.61%   0.31%  firefox     libxul.so          [.] js::SetPropertyByDefining

   - Introduce the 'perf stat record/report' workflow:

     Generate perf.data files from 'perf stat', to tap into the
     scripting capabilities perf has instead of defining a 'perf stat'
     specific scripting support to calculate event ratios, etc.

     Simple example:

        $ perf stat record -e cycles usleep 1

         Performance counter stats for 'usleep 1':

               1,134,996      cycles

             0.000670644 seconds time elapsed

        $ perf stat report

         Performance counter stats for '/home/acme/bin/perf stat record -e cycles usleep 1':

               1,134,996      cycles

             0.000670644 seconds time elapsed

        $

     It generates PERF_RECORD_ userspace records to store the details:

        $ perf report -D | grep PERF_RECORD
        0xf0 [0x28]: PERF_RECORD_THREAD_MAP nr: 1 thread: 27637
        0x118 [0x12]: PERF_RECORD_CPU_MAP nr: 1 cpu: 65535
        0x12a [0x40]: PERF_RECORD_STAT_CONFIG
        0x16a [0x30]: PERF_RECORD_STAT
        -1 -1 0x19a [0x40]: PERF_RECORD_MMAP -1/0: [0xffffffff81000000(0x1f000000) @ 0xffffffff81000000]: x [kernel.kallsyms]_text
        0x1da [0x18]: PERF_RECORD_STAT_ROUND
        [acme@ssdandy linux]$

     An effort was made to make perf.data files generated like this to
     not generate cryptic messages when processed by older tools.

     The 'perf script' bits need rebasing, will go up later.

   - Make command line options always available, even when they depend
     on some feature being enabled, warning the user about use of such
     options (Wang Nan)

   - Support hw breakpoint events (mem:0xAddress) in the default output
     mode in 'perf script' (Wang Nan)

   - Fixes and improvements for supporting annotating ARM binaries,
     support ARM call and jump instructions, more work needed to have
     arch specific stuff separated into tools/perf/arch/*/annotate/
     (Russell King)

   - Add initial 'perf config' command, for now just with a --list
     command to the contents of the configuration file in use and a
     basic man page describing its format, commands for doing edits and
     detailed documentation are being reviewed and proof-read.  (Taeung
     Song)

   - Allows BPF scriptlets specify arguments to be fetched using DWARF
     info, using a prologue generated at compile/build time (He Kuang,
     Wang Nan)

   - Allow attaching BPF scriptlets to module symbols (Wang Nan)

   - Allow attaching BPF scriptlets to userspace code using uprobe (Wang
     Nan)

   - BPF programs now can specify 'perf probe' tunables via its section
     name, separating key=val values using semicolons (Wang Nan)

     Testing some of these new BPF features:

        Use case: get callchains when receiving SSL packets, filter then in the
                  kernel, at arbitrary place.

        # cat ssl.bpf.c
        #define SEC(NAME) __attribute__((section(NAME), used))

        struct pt_regs;

        SEC("func=__inet_lookup_established hnum")
        int func(struct pt_regs *ctx, int err, unsigned short port)
        {
                return err == 0 && port == 443;
        }

        char _license[] SEC("license") = "GPL";
        int  _version   SEC("version") = LINUX_VERSION_CODE;
        #
        # perf record -a -g -e ssl.bpf.c
        ^C[ perf record: Woken up 1 times to write data ]
        [ perf record: Captured and wrote 0.787 MB perf.data (3 samples) ]
        # perf script | head -30
        swapper     0 [000] 58783.268118: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb
           8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux)
           896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux)
           8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux)
           855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux)
           8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux)
           8572a8 process_backlog (/lib/modules/4.3.0+/build/vmlinux)
           856b11 net_rx_action (/lib/modules/4.3.0+/build/vmlinux)
           2a284b __do_softirq (/lib/modules/4.3.0+/build/vmlinux)
           2a2ba3 irq_exit (/lib/modules/4.3.0+/build/vmlinux)
           96b7a4 do_IRQ (/lib/modules/4.3.0+/build/vmlinux)
           969807 ret_from_intr (/lib/modules/4.3.0+/build/vmlinux)
           2dede5 cpu_startup_entry (/lib/modules/4.3.0+/build/vmlinux)
           95d5bc rest_init (/lib/modules/4.3.0+/build/vmlinux)
          1163ffa start_kernel ([kernel.vmlinux].init.text)
          11634d7 x86_64_start_reservations ([kernel.vmlinux].init.text)
          1163623 x86_64_start_kernel ([kernel.vmlinux].init.text)

        qemu-system-x86  9178 [003] 58785.792417: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb
           8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux)
           896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux)
           8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux)
           855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux)
           8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux)
           856660 netif_receive_skb_internal (/lib/modules/4.3.0+/build/vmlinux)
           8566ec netif_receive_skb_sk (/lib/modules/4.3.0+/build/vmlinux)
             430a br_handle_frame_finish ([bridge])
             48bc br_handle_frame ([bridge])
           855f44 __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux)
           8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux)
        #

   - Use 'perf probe' various options to list functions, see what
     variables can be collected at any given point, experiment first
     collecting without a filter, then filter, use it together with
     'perf trace', 'perf top', with or without callchains, if it
     explodes, please tell us!

   - Introduce a new callchain mode: "folded", that will list per line
     representations of all callchains for a give histogram entry,
     facilitating 'perf report' output processing by other tools, such
     as Brendan Gregg's flamegraph tools (Namhyung Kim)

     E.g:

        # perf report | grep -v ^# | head
           18.37%     0.00%  swapper  [kernel.kallsyms]   [k] cpu_startup_entry
                           |
                           ---cpu_startup_entry
                              |
                              |--12.07%--start_secondary
                              |
                               --6.30%--rest_init
                                         start_kernel
                                         x86_64_start_reservations
                                         x86_64_start_kernel
         #

     Becomes, in "folded" mode:

        # perf report -g folded | grep -v ^# | head -5
            18.37%     0.00%  swapper [kernel.kallsyms]   [k] cpu_startup_entry
          12.07% cpu_startup_entry;start_secondary
           6.30% cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel
            16.90%     0.00%  swapper [kernel.kallsyms]   [k] call_cpuidle
          11.23% call_cpuidle;cpu_startup_entry;start_secondary
           5.67% call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel
            16.90%     0.00%  swapper [kernel.kallsyms]   [k] cpuidle_enter
          11.23% cpuidle_enter;call_cpuidle;cpu_startup_entry;start_secondary
           5.67% cpuidle_enter;call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel
            15.12%     0.00%  swapper [kernel.kallsyms]   [k] cpuidle_enter_state
         #

     The user can also select one of "count", "period" or "percent" as
     the first column.

  ... and lots of infrastructure enhancements, plus fixes and other
  changes, features I failed to list - see the shortlog and the git log
  for details"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (271 commits)
  perf evlist: Add --trace-fields option to show trace fields
  perf record: Store data mmaps for dwarf unwind
  perf libdw: Check for mmaps also in MAP__VARIABLE tree
  perf unwind: Check for mmaps also in MAP__VARIABLE tree
  perf unwind: Use find_map function in access_dso_mem
  perf evlist: Remove perf_evlist__(enable|disable)_event functions
  perf evlist: Make perf_evlist__open() open evsels with their cpus and threads (like perf record does)
  perf report: Show random usage tip on the help line
  perf hists: Export a couple of hist functions
  perf diff: Use perf_hpp__register_sort_field interface
  perf tools: Add overhead/overhead_children keys defaults via string
  perf tools: Remove list entry from struct sort_entry
  perf tools: Include all tools/lib directory for tags/cscope/TAGS targets
  perf script: Align event name properly
  perf tools: Add missing headers in perf's MANIFEST
  perf tools: Do not show trace command if it's not compiled in
  perf report: Change default to use event group view
  perf top: Decay periods in callchains
  tools lib: Move bitmap.[ch] from tools/perf/ to tools/{lib,include}/
  tools lib: Sync tools/lib/find_bit.c with the kernel
  ...
2016-01-11 14:39:17 -08:00
Linus Torvalds
24af98c4cf Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
 "So we have a laundry list of locking subsystem changes:

   - continuing barrier API and code improvements

   - futex enhancements

   - atomics API improvements

   - pvqspinlock enhancements: in particular lock stealing and adaptive
     spinning

   - qspinlock micro-enhancements"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op
  futex: Cleanup the goto confusion in requeue_pi()
  futex: Remove pointless put_pi_state calls in requeue()
  futex: Document pi_state refcounting in requeue code
  futex: Rename free_pi_state() to put_pi_state()
  futex: Drop refcount if requeue_pi() acquired the rtmutex
  locking/barriers, arch: Remove ambiguous statement in the smp_store_mb() documentation
  lcoking/barriers, arch: Use smp barriers in smp_store_release()
  locking/cmpxchg, arch: Remove tas() definitions
  locking/pvqspinlock: Queue node adaptive spinning
  locking/pvqspinlock: Allow limited lock stealing
  locking/pvqspinlock: Collect slowpath lock statistics
  sched/core, locking: Document Program-Order guarantees
  locking, sched: Introduce smp_cond_acquire() and use it
  locking/pvqspinlock, x86: Optimize the PV unlock code path
  locking/qspinlock: Avoid redundant read of next pointer
  locking/qspinlock: Prefetch the next node cacheline
  locking/qspinlock: Use _acquire/_release() versions of cmpxchg() & xchg()
  atomics: Add test for atomic operations with _relaxed variants
2016-01-11 14:18:38 -08:00
Linus Torvalds
9061cbe62a Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
 "The changes in this cycle were:

   - Adding transitivity uniformly to rcu_node structure ->lock
     acquisitions.  (This is implemented by the first two commits on top
     of v4.4-rc2 due to the pervasive nature of this change.)

   - Documentation updates, including RCU requirements.

   - Expedited grace-period changes.

   - Miscellaneous fixes.

   - Linked-list fixes, courtesy of KTSAN.

   - Torture-test updates.

   - Late-breaking fix to sysrq-generated crash.

  One thing I should note is that these pieces of documentation are
  fairly large files:

    .../RCU/Design/Requirements/Requirements.html      | 2897 ++++++++++++++++++++
    .../RCU/Design/Requirements/Requirements.htmlx     | 2741 ++++++++++++++++++

  and are written in HTML, not the usual .txt style.  I hope they are
  fine"

Paul McKenney explains the html docs:
 "For whatever it is worth, the reason for this unconventional choice
  was that attempts to do the diagrams in ASCII art failed miserably.

  And attempts to do ASCII art for the upcoming documentation of the
  data structures failed even more miserably"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (49 commits)
  sysrq: Fix warning in sysrq generated crash.
  list: Add lockless list traversal primitives
  rcu: Make rcu_gp_init() be bool rather than int
  rcu: Move wakeup out from under rnp->lock
  rcu: Fix comment for rcu_dereference_raw_notrace
  rcu: Don't redundantly disable irqs in rcu_irq_{enter,exit}()
  rcu: Make cpu_needs_another_gp() be bool
  rcu: Eliminate unused rcu_init_one() argument
  rcu: Remove TINY_RCU bloat from pointless boot parameters
  torture: Place console.log files correctly from the get-go
  torture: Abbreviate console error dump
  rcutorture: Print symbolic name for ->gp_state
  rcutorture: Print symbolic name for rcu_torture_writer_state
  rcutorture: Remove CONFIG_RCU_USER_QS from rcutorture selftest doc
  rcutorture: Default grace period to three minutes, allow override
  rcutorture:  Dump stack when GP kthread stalls
  rcutorture: Flag nonexistent RCU GP kthread
  rcutorture: Add batch number to script printout
  Documentation/memory-barriers.txt: Fix ACCESS_ONCE thinko
  documentation: Update RCU requirements based on expedited changes
  ...
2016-01-11 13:46:11 -08:00
Linus Torvalds
32fb378437 Merge branch 'work.symlinks' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs RCU symlink updates from Al Viro:
 "Replacement of ->follow_link/->put_link, allowing to stay in RCU mode
  even if the symlink is not an embedded one.

  No changes since the mailbomb on Jan 1"

* 'work.symlinks' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  switch ->get_link() to delayed_call, kill ->put_link()
  kill free_page_put_link()
  teach nfs_get_link() to work in RCU mode
  teach proc_self_get_link()/proc_thread_self_get_link() to work in RCU mode
  teach shmem_get_link() to work in RCU mode
  teach page_get_link() to work in RCU mode
  replace ->follow_link() with new method that could stay in RCU mode
  don't put symlink bodies in pagecache into highmem
  namei: page_getlink() and page_follow_link_light() are the same thing
  ufs: get rid of ->setattr() for symlinks
  udf: don't duplicate page_symlink_inode_operations
  logfs: don't duplicate page_symlink_inode_operations
  switch befs long symlinks to page_symlink_operations
2016-01-11 13:13:23 -08:00
Guenter Roeck
0254e95353 watchdog: Drop pointer to watchdog device from struct watchdog_device
The lifetime of the watchdog device pointer is different from the lifetime
of its character device. Remove it entirely to avoid race conditions.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-01-11 21:53:59 +01:00
Guenter Roeck
faa584757b watchdog: Add support for creating driver specific sysfs attributes
The Zodiac watchdog driver attaches additional sysfs attributes to the
watchdog device. This has a number of problems: The watchdog device
lifetime differs from the driver lifetime, and the device structure
should therefore not be accessed from drivers. Also, creating sysfs
attributes after driver registration results in a potential race condition
if user space expects the attributes to exist but they don't exist yet.

Add support for creating driver specific sysfs attributes to the watchdog
core to solve the problems.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-01-11 21:53:57 +01:00
Takashi Iwai
815ad86236 ASoC: Last updates for v4.5
A bunch more updates for v4.5, mainly driver work:
 
  - More topology API enhancements from Mengdong Lin working towards
    making everything more component based and being able to specify PCM
    links via topology.
  - Large sets driver updates from Cirrus, Intel (mainly more Skylake
    support) and Renesas.
  - New drivers for AMD ACP, Atmel PDMIC, Dialog DA7218, Imagination
    Technologies SoC IPs, Rockchip RK3036 Inno CODEC and Texas Instruments
    PCM3168A.
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Merge tag 'asoc-v4.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Last updates for v4.5

A bunch more updates for v4.5, mainly driver work:

 - More topology API enhancements from Mengdong Lin working towards
   making everything more component based and being able to specify PCM
   links via topology.
 - Large sets driver updates from Cirrus, Intel (mainly more Skylake
   support) and Renesas.
 - New driver for AMD ACP
 - Rename PCM1792a driver to be generic pcm179x
2016-01-11 17:50:15 +01:00
Mark Brown
4f9530705b Merge remote-tracking branches 'spi/topic/overlay', 'spi/topic/pxa2xx', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/spidev' into spi-next 2016-01-11 16:48:35 +00:00
Mark Brown
41d5a70051 Merge remote-tracking branches 'spi/topic/lm70llp', 'spi/topic/loopback', 'spi/topic/mtk' and 'spi/topic/omap2-mcspi' into spi-next 2016-01-11 16:48:33 +00:00
Lukas Wunner
3d7b75fdae apple-gmux: Add initial documentation
Document what I've learned so far about the gmux so that we can
collaboratively reverse-engineer its remaining unknown bits
without everyone having to start from scratch.

The DOC sections are bound together in the gpu.tmpl DocBook
under a new vga_switcheroo "Handlers" chapter. Eventually
this should be amended with documentation about the four other
handlers that exist so far (nouveau v1 DSM, nouveau Optimus DSM,
radeon ATPX, amdgpu ATPX).

Requires kernel-doc with asciidoc support.

The EFI variable was reverse-engineered by Bruno Bierbaumer
<bruno@bierbaumer.net> and Andreas Heider <andreas@meetr.de>.

Some of the remaining open questions:

* How are vblank intervals synchronized on retinas to achieve seamless
  switching? Is the DP mux capable of this? It's not mentioned in the
  data sheets. Or is it done at the OS level, i.e. do we have to
  synchronize vblank intervals between DRM drivers? There's a signal
  coming from the panel connector and going into gmux, could this be
  the vblank signal as received by the panel to properly time the
  switch?

* On retinas there's an I2C bus between gmux and the connector of the
  right I/O board, apparently leading to the Parade PS8401A HDMI
  repeater. What is this for, is it controlled via gmux registers?
  Data sheet:
  http://www.paradetech.com/products/jitter-cleaning-repeaters/ps8401/

* On retinas there's an I2C bus between gmux and the LED driver.
  Pre-retinas connected the LED driver to SMBUS. Are there additional
  gmux registers on retinas to control it?

* The MacPro6,1 2013 also has a gmux, the same Renesas R4F2113 as the
  retina MacBook Pro. The Mac Pro doesn't have a built-in display,
  so what is its purpose? Power control of the dual FirePro GPUs?
  Switching of the external DP/Thunderbolt ports? The iFixit teardown
  clearly shows one TI HD3SS212 DisplayPort mux on the logic board next
  to one of the three Thunderbolt controllers. However six muxes would
  be necessary to switch all six ports between GPUs. The mux is probably
  necessary for one of the display configurations allowed by Apple,
  but which one?
  https://www.ifixit.com/Teardown/Mac+Pro+Late+2013+Teardown/20778
  https://d3nevzfk7ii3be.cloudfront.net/igi/fELBTnt31QhnDsqq.huge
  https://support.apple.com/en-us/HT202801

* Registers we haven't decoded yet:
  0x700 32 Bit configmap?
  0x708 32 Bit power sequence?
  0x712  8 Bit status of clock from panel on retinas?
  0x713  8 Bit dito?
  0x724 16 Bit backlight, raw value?
  0x760 32 Bit backlight
  0x764 32 Bit backlight
  0x768  8 Bit backlight
  0x76a 16 Bit backlight
  0x76c 16 Bit backlight
  0x76e 16 Bit backlight
  0x77f        edp/dp/hdmi probe? retina only.

* Addition by Bruno Prémont <bonbons@linux-vserver.org>:
  "Missing is also precise knowledge as to what the gmux depends on.
  From behavioral reports, it is somehow sensitive to VGA IO/MEM
  routing (it apparently needs the routing to go to integrated GPU,
  not discrete GPU).
  When the routing is inappropriate backlight control IO just reads back
  as 0xFF (and eventually gmux IO in general does so)."

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/da309e436fbeac886477d80376457b7d83ea4b2d.1452431795.git.lukas@wunner.de
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-11 15:56:23 +01:00
Mauro Carvalho Chehab
be0270ec89 [media] Postpone the addition of MEDIA_IOC_G_TOPOLOGY
There are a few discussions left with regards to this ioctl:

1) the name of the new structs will contain _v2_ on it?
2) what's the best alternative to avoid compat32 issues?

Due to that, let's postpone the addition of this new ioctl to
the next Kernel version, to give people more time to discuss it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:35:17 -02:00
Mauro Carvalho Chehab
677cb4bfc2 [media] DocBook: Document MEDIA_IOC_G_TOPOLOGY
Add description for this new media controller ioctl.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:12 -02:00
Mauro Carvalho Chehab
dc7339bf11 [media] DocBook: add a table for Media Controller interfaces
Document the media controller interfaces at the media
uAPI docbook.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:12 -02:00
Mauro Carvalho Chehab
eb7d970aa0 [media] Docbook: media-types.xml: update the existing tables
There were some changes on the media types that were not reflected
on the types tables. Update them to reflect the upstream changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:11 -02:00
Mauro Carvalho Chehab
5fec921f49 [media] DocBook: move data types to a separate section
As MEDIA_IOC_G_TOPOLOGY shares the data types already declared
for entities, pads and links, we should move those to a separate
part of the document, and use cross-references where needed.

So, move the following tables to a separate section at the
DocBook:
	media-entity-type
	media-entity-flag
	media-pad-flag
	media-link-flag

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:11 -02:00
Mauro Carvalho Chehab
b7870d692d [media] DocBook: MC: add the concept of interfaces
The Media Controller next generation patches added a new graph
element type: interfaces. It also allows links between interfaces
and entities. Update the docbook to reflect that.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:11 -02:00
Mauro Carvalho Chehab
cc2dd94a05 [media] DocBook: Move media-framework.txt contents to media-device.h
Instead of using a text file, let's put it together with the
struct documentation for the Media Controller.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:04 -02:00
Mauro Carvalho Chehab
8ed8c88c46 [media] media-entity.h: get rid of revision and group_id fields
Both revision and group_id fields were never used and were always
initialized to zero. Remove them.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:04 -02:00
Mauro Carvalho Chehab
ab22e77cd3 [media] media framework: rename pads init function to media_entity_pads_init()
With the MC next gen rework, what's left for media_entity_init()
is to just initialize the PADs. However, certain devices, like
a FLASH led/light doesn't have any input or output PAD.

So, there's no reason why calling media_entity_init() would be
mandatory. Also, despite its name, what this function actually
does is to initialize the PADs data. So, rename it to
media_entity_pads_init() in order to reflect that.

The media entity actual init happens during entity register,
at media_device_register_entity(). We should move init of
num_links and num_backlinks to it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:03 -02:00
Mauro Carvalho Chehab
bd3ed12be1 [media] DocBook: update entities documentation
Due to the rename, the documentation became outdated.

Update it to reflect what's there at media.h.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:01 -02:00
Mauro Carvalho Chehab
0e576b76f5 [media] media-entity.h: rename entity.type to entity.function
Entities should have one or more functions. Calling it as a
type proofed to not be correct, as an entity could eventually
have more than one type.

So, rename the field as function.

Please notice that this patch doesn't extend support for
multiple function entities. Such change will happen when
we have real case drivers using it.

No functional changes.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:19:00 -02:00
Mauro Carvalho Chehab
4ae1723af8 [media] DocBook: update descriptions for the media controller entities
Cleanup the media controller entities description:
- remove MEDIA_ENT_T_DEVNODE and MEDIA_ENT_T_V4L2_SUBDEV entity
  types, as they don't mean anything;
- add MEDIA_ENT_T_UNKNOWN with a proper description;
- remove ALSA and FB entity types. Those should not be used, as
  the types are deprecated. We'll soon be adidng ALSA, but with
  a different entity namespace;
- improve the description of some entities.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:18:52 -02:00
Mauro Carvalho Chehab
fef486a07d [media] replace all occurrences of MEDIA_ENT_T_DEVNODE_DVB
Now that interfaces and entities are distinct, it makes no sense
of keeping something named as MEDIA_ENT_T_DEVNODE_DVB_foo.

Made via this script:
	for i in $(git grep -l MEDIA_ENT_T|grep -v uapi/linux/media.h); do sed s,MEDIA_ENT_T_DEVNODE_DVB_,MEDIA_ENT_T_DVB_, <$i >a && mv a $i; done
	for i in $(git grep -l MEDIA_ENT_T|grep -v uapi/linux/media.h); do sed s,MEDIA_ENT_T_DVB_DVR,MEDIA_ENT_T_DVB_TSOUT, <$i >a && mv a $i; done
	for i in $(git grep -l MEDIA_ENT_T|grep -v uapi/linux/media.h); do sed s,MEDIA_ENT_T_DVB_FE,MEDIA_ENT_T_DVB_DEMOD, <$i >a && mv a $i; done
	for i in $(git grep -l MEDIA_ENT_T|grep -v uapi/linux/media.h); do sed s,MEDIA_ENT_T_DVB_NET,MEDIA_ENT_T_DVB_DEMOD_NET_DECAP, <$i >a && mv a $i; done

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:18:49 -02:00
Mauro Carvalho Chehab
cf49066152 [media] replace all occurrences of MEDIA_ENT_T_DEVNODE_V4L
Now that interfaces and entities are distinct, it makes no sense
of keeping something named as MEDIA_ENT_T_DEVNODE.

This change was done with this script:

	for i in $(git grep -l MEDIA_ENT_T|grep -v uapi/linux/media.h); do sed s,MEDIA_ENT_T_DEVNODE_V4L,MEDIA_ENT_T_V4L2_VIDEO, <$i >a && mv a $i; done

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:18:49 -02:00
Mauro Carvalho Chehab
8df00a1581 [media] media: rename the function that create pad links
With the new API, a link can be either between two PADs or between an interface
and an entity. So, we need to use a better name for the function that create
links between two pads.

So, rename the such function to media_create_pad_link().

No functional changes.

This patch was created via this shell script:
	for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f) $(find include/ -name '*.h' -type f) ; do sed s,media_entity_create_link,media_create_pad_link,g <$i >a && mv a $i; done

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:18:43 -02:00
Mauro Carvalho Chehab
1809510715 [media] media: get rid of unused "extra_links" param on media_entity_init()
Currently, media_entity_init() creates an array with the links,
allocated at init time. It provides a parameter (extra_links)
that would allocate more links than the current needs, but this
is not used by any driver.

As we want to be able to do dynamic link allocation/removal,
we'll need to change the implementation of the links. So,
before doing that, let's first remove that extra unused
parameter, in order to cleanup the interface first.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:18:39 -02:00
Mark Brown
d5221ab6b2 Merge remote-tracking branch 'asoc/topic/rt5651' into asoc-next 2016-01-11 13:54:39 +00:00
Mark Brown
51a545a343 Merge remote-tracking branch 'asoc/topic/pcm1792a' into asoc-next 2016-01-11 13:54:31 +00:00
Mark Brown
fffe9b89d8 ASoC: Updates for v4.5
This is quite a busy release on the driver front with a lot of new
 drivers being added but comparatively quiet on the core side with only
 one big change going in and that a fairly straightforward refactoring.
 
  - Conversion of the array of DAI links to a list by Mengdong Lin,
    supporting dynamically adding and removing DAI links.
  - Some more fixes for the topology code, though it is still not final
    and ready for enabling in production.  We really need to get to the
    point where that can be done.
  - A pile of changes for Intel SkyLake drivers which hopefully deliver
    some useful initial functionality for systems with this chipset,
    though there is more work still to come.
  - New drivers for a number of Imagination Technologies IPs.
  - Lots of new features and cleanups for the Renesas drivers.
  - ANC support for WM5110.
  - New driver for Atmel class D speaker drivers.
  - New drivers for Cirrus CS47L24 and WM1831.
  - New driver for Dialog DA7128.
  - New drivers for Realtek RT5659 and RT56156.
  - New driver for Rockchip RK3036.
  - New driver for TI PC3168A
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Merge tag 'asoc-v4.5' into asoc-next

ASoC: Updates for v4.5

This is quite a busy release on the driver front with a lot of new
drivers being added but comparatively quiet on the core side with only
one big change going in and that a fairly straightforward refactoring.

 - Conversion of the array of DAI links to a list by Mengdong Lin,
   supporting dynamically adding and removing DAI links.
 - Some more fixes for the topology code, though it is still not final
   and ready for enabling in production.  We really need to get to the
   point where that can be done.
 - A pile of changes for Intel SkyLake drivers which hopefully deliver
   some useful initial functionality for systems with this chipset,
   though there is more work still to come.
 - New drivers for a number of Imagination Technologies IPs.
 - Lots of new features and cleanups for the Renesas drivers.
 - ANC support for WM5110.
 - New driver for Atmel class D speaker drivers.
 - New drivers for Cirrus CS47L24 and WM1831.
 - New driver for Dialog DA7128.
 - New drivers for Realtek RT5659 and RT56156.
 - New driver for Rockchip RK3036.
 - New driver for TI PC3168A

# gpg: Signature made Wed 23 Dec 2015 00:42:40 GMT using RSA key ID 5D5487D0
# gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>"
# gpg:                 aka "Mark Brown <broonie@debian.org>"
# gpg:                 aka "Mark Brown <broonie@kernel.org>"
# gpg:                 aka "Mark Brown <broonie@tardis.ed.ac.uk>"
# gpg:                 aka "Mark Brown <broonie@linaro.org>"
# gpg:                 aka "Mark Brown <Mark.Brown@linaro.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 3F25 68AA C269 98F9 E813  A1C5 C3F4 36CA 30F5 D8EB
#      Subkey fingerprint: ADE6 68AA 6757 18B5 9FE2  9FEA 24D6 8B72 5D54 87D0
2016-01-11 13:54:29 +00:00
Mauro Carvalho Chehab
c3152592e7 Merge branch 'patchwork' into v4l_for_linus
* patchwork: (204 commits)
  [media] rc: sunxi-cir: Initialize the spinlock properly
  [media] rtl2832: do not filter out slave TS null packets
  [media] rtl2832: print reg number on error case
  [media] rtl28xxu: return demod reg page from driver cache
  [media] coda: enable MPEG-2 ES decoding
  [media] coda: don't start streaming without queued buffers
  [media] coda: hook up vidioc_prepare_buf
  [media] coda: relax coda_jpeg_check_buffer for trailing bytes
  [media] coda: make to_coda_video_device static
  [media] s5p-mfc: remove volatile attribute from MFC register addresses
  [media] s5p-mfc: merge together s5p_mfc_hw_call and s5p_mfc_hw_call_void
  [media] s5p-mfc: use spinlock to protect MFC context
  [media] s5p-mfc: remove unnecessary callbacks
  [media] s5p-mfc: make queue cleanup code common
  [media] s5p-mfc: use one implementation of s5p_mfc_get_new_ctx
  [media] s5p-mfc: constify s5p_mfc_codec_ops structures
  [media] au8522: Avoid memory leak for device config data
  [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf
  [media] uvcvideo: small cleanup in uvc_video_clock_update()
  [media] uvcvideo: Fix reading the current exposure value of UVC
  ...
2016-01-11 11:13:27 -02:00
Charles Keepax
a5dca7dc7e mfd: arizona: Update binding docs for selecting mono/stereo outputs
Update the device tree binding documentation to include the wlf,out-mono
property that is used to specify whether each output is a mono or stereo
output.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-01-11 07:33:24 +00:00
Damien Riegel
db2fb60cd3 mfd: syscon: Add a DT property to set value width
Currently syscon has a fixed configuration of 32 bits for register and
values widths. In some cases, it would be desirable to be able to
customize the value width.

For example, certain boards (like the ones manufactured by Technologic
Systems) have a FPGA that is memory-mapped, but its registers are only
16-bit wide.

This patch adds an optional "reg-io-width" DT binding for syscon that
allows to change the width for the data bus (i.e. val_bits). If this
property is provided, it will also set the register stride to
reg-io-width's value. If not provided, the default configuration is
used.

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2016-01-11 06:08:02 +00:00
Elad Raz
4f5590f8cd switchdev: Adding IGMP snooping documentation
Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-10 16:50:21 -05:00
Mickaël Salaün
c50b4659e4 um: Add seccomp support
This brings SECCOMP_MODE_STRICT and SECCOMP_MODE_FILTER support through
prctl(2) and seccomp(2) to User-mode Linux for i386 and x86_64
subarchitectures.

secure_computing() is called first in handle_syscall() so that the
syscall emulation will be aborted quickly if matching a seccomp rule.

This is inspired from Meredydd Luff's patch
(https://gerrit.chromium.org/gerrit/21425).

Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Will Drewry <wad@chromium.org>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Meredydd Luff <meredydd@senatehouse.org>
Cc: David Drysdale <drysdale@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Kees Cook <keescook@chromium.org>
2016-01-10 21:49:49 +01:00
Michael Trimarchi
0471cd938e ASoC: pcm1792a: Rename pcm1792a to pcm179x
pcm1792a is compatible with pcm1795 and pcm1796 so it's
better to have them under the common name pcm179x

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:01:12 +00:00
Wolfram Sang
a570a27af4 dt-bindings: i2c: eeprom: add another EEPROM device
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-01-10 09:39:39 +01:00
Wolfram Sang
f5e12d0d5b dt-bindings: move I2C eeprom descriptions to the proper file
EEPROMs can have additional properties, so they are not suitable for
trivial-devices.txt. Move most bindings to the designated eeprom.txt.
Add the missing "atmel,24c08" while doing that. Note that the remaining
ones in trivial-devices need to be dealt with separately because of
improper manufacturer names.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-01-10 09:39:12 +01:00
Akshay Bhat
fa5b0bfa26 DT: i2c: trivial-devices: Add Epson RX8010 and MPL3115
Signed-off-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-01-10 09:30:38 +01:00
John Crispin
ab3f09fe16 watchdog: add MT7621 watchdog support
This patch adds support for the watchdog core found on newer MediaTek Wifi
SoCs MT7621 and MT7628. There is no symbol for MT7628 as it is a subtype of
MT7620 so we depend on that instead.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-01-09 17:45:28 +01:00
Sven Eckelmann
cc69d3dbbb batman-adv: Change ifconfig examples to iproute2
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
2016-01-09 20:56:00 +08:00
Al Viro
6108209c4a Merge branch 'for-linus' into work.misc 2016-01-08 21:20:11 -05:00
Gabriele Paoloni
5930fe4ede PCI: hisi: Add support for HiSilicon Hip06 PCIe host controllers
Add support for the HiSilicon Hip06 SoC.  Documentation has been updated to
include Hip06.  Add Gabriele Paoloni as maintainer of the driver.

Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
2016-01-08 14:12:49 -06:00
Ilya Ledvich
0c6623e359 ARM: dts: compulab: add new board description
Add description for newly introduced Compulab devices:
- CL-SOM-iMX7
- SBC-iMX7

Signed-off-by: Ilya Ledvich <ilya@compulab.co.il>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-01-08 11:49:58 +01:00
Arnd Bergmann
3c81e4e60a Merge tag 'meson-for-4.5/dts' of https://github.com/carlocaione/linux-meson into next/dt
Merge "Amlogic DT changes for 4.5" from Carlo Caione:

This pull request includes the Amlogic Meson8b DTS changes for v4.5

* tag 'meson-for-4.5/dts' of https://github.com/carlocaione/linux-meson:
  ARM: dts: meson8b: Add watchdog node
  Documentation: watchdog: Add new bindings for meson8b
  ARM: meson: Add status LED for Odroid-C1
2016-01-08 11:43:57 +01:00
Greg Kroah-Hartman
f658f21c65 Merge branch 'scif-clk-sck-brg-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into tty-next
Geert writes:

Summary:
  - Clean up the naming of clocks in the sh-sci driver and its DT bindings,
  - Add support for the optional external clock on (H)SCI(F), where this pin
    can serve as a clock input,
  - Add support for the optional clock sources for the Baud Rate
    Generator for External Clock (BRG), as found on some SCIF variants
    and on HSCIF.
2016-01-07 21:04:46 -08:00
James Bottomley
abaee091a1 Merge branch 'jejb-scsi' into misc 2016-01-07 15:51:13 -08:00
Neil Armstrong
c505a3820f dt-bindings: net: macb: Add NP4 macb variant
Add NP4 macb SoC variant.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-07 16:26:36 -05:00
Biao Huang
14da0a91bf pinctrl: mediatek: Modify pinctrl bindings for mt2701
Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Mathias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-01-07 11:10:59 +01:00
Paolo Bonzini
def840ede3 KVM/ARM changes for Linux v4.5
- Complete rewrite of the arm64 world switch in C, hopefully
   paving the way for more sharing with the 32bit code, better
   maintainability and easier integration of new features.
   Also smaller and slightly faster in some cases...
 - Support for 16bit VM identifiers
 - Various cleanups
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Merge tag 'kvm-arm-for-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-next

KVM/ARM changes for Linux v4.5

- Complete rewrite of the arm64 world switch in C, hopefully
  paving the way for more sharing with the 32bit code, better
  maintainability and easier integration of new features.
  Also smaller and slightly faster in some cases...
- Support for 16bit VM identifiers
- Various cleanups
2016-01-07 11:00:57 +01:00
Timur Tabi
3b78fae793 tty: amba-pl011: use iotype instead of access_32b to track 32-bit I/O
Instead of defining a new field in the uart_amba_port structure, use the
existing iotype field of the uart_port structure, which is intended for
this purpose.  If we need to use 32-bit register access, we set iotype
to UPIO_MEM32, otherwise we set it to UPIO_MEM.

For early console, specify the "mmio32" option on the kernel command-line.
Example:

        earlycon=pl011,mmio32,0x3ced1000

Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-06 21:02:45 -08:00
Caesar Wang
4be02530fc dt-bindings: rockchip-thermal: Support the RK3228/RK3399 SoCs compatible
This patchset attempts to new compatible for thermal founding
on RK3228/RK3399 SoCs.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-01-06 18:06:37 -08:00
Dmitry Torokhov
efbc57c0e6 Merge branch 'goodix' into next
Merge several improvements to Goodix touchscreen driver:
- power management support
- configuration upload
- axis swapping and inversion
2016-01-06 17:31:06 -08:00
Alex Smith
6f357de854 doc: dt: mtd: new binding for jz4780-{nand,bch}
Add DT bindings for NAND devices connected to the NEMC on JZ4780 SoCs,
as well as the hardware BCH controller, used by the jz4780_{nand,bch}
drivers.

Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Harvey Hunt <harvey.hunt@imgtec.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2016-01-06 17:24:29 -08:00
Bjorn Helgaas
65d5b109d1 Merge branches 'pci/host-generic', 'pci/host-imx6', 'pci/host-iproc' and 'pci/host-rcar' into next
* pci/host-generic:
  PCI: generic,versatile: Remove unused pci_sys_data structures

* pci/host-imx6:
  PCI: imx6: Add support for active-low reset GPIO
  PCI: imx6: Use gpio_set_value_cansleep()

* pci/host-iproc:
  PCI: iproc: Add iProc PCIe MSI support
  PCI: iproc: Add iProc PCIe MSI device tree binding
  PCI: iproc: Add PAXC interface support
  PCI: iproc: Update iProc PCIe device tree binding
  PCI: iproc: Do not use 0x in front of %pap
  PCI: iproc: Hide CONFIG_PCIE_IPROC

* pci/host-rcar:
  PCI: rcar: Add gen2 fallback compatibility string for pcie-rcar
  PCI: rcar: Add gen2 fallback compatibility string for pci-rcar-gen2
  PCI: rcar: Add support for R-Car H3 to pcie-rcar
  Revert "PCI: rcar: Build pcie-rcar.c only on ARM"
  PCI: rcar: Convert to DT resource parsing API
  PCI: rcar: Allow DT to override default window settings
2016-01-06 18:09:23 -06:00
Takashi Iwai
9d9938854e Merge branch 'for-linus' into for-next
Conflicts:
	drivers/gpu/drm/i915/intel_display.c
	sound/soc/intel/skylake/skl.h
2016-01-06 21:14:35 +01:00
Dmitry Monakhov
1031bc5892 lib/vsprintf: add %*pg format specifier
This allow to directly print block_device name.
Currently one should use bdevname() with temporal char buffer.
This is very ineffective because bloat stack usage for deep IO call-traces

Example:
	%pg  ->    sda, sda1 or loop0p1

[AV: fixed a minor braino - position updates should not be dependent
upon having reached the of buffer]

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-06 12:55:29 -05:00
Ingo Molnar
3104fb3dd4 Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU changes from Paul E. McKenney:

 - Adding transitivity uniformly to rcu_node structure ->lock
   acquisitions.  (This is implemented by the first two commits
   on top of v4.4-rc2 due to the pervasive nature of this change.)

 - Documentation updates, including RCU requirements.

 - Expedited grace-period changes.

 - Miscellaneous fixes.

 - Linked-list fixes, courtesy of KTSAN.

 - Torture-test updates.

 - Late-breaking fix to sysrq-generated crash.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-06 11:41:48 +01:00
Vinod Koul
9406de3e43 Merge branch 'topic/ti-xbar' into for-linus 2016-01-06 15:19:18 +05:30
Vinod Koul
c8b9dd2b9e Merge branch 'topic/stm32' into for-linus 2016-01-06 15:18:56 +05:30
Vinod Koul
a6eaf23b05 Merge branch 'topic/rcar' into for-linus 2016-01-06 15:18:36 +05:30
Vinod Koul
d3f1e93ce8 Merge branch 'topic/async' into for-linus 2016-01-06 15:17:47 +05:30
Chris Zhong
a20d86e7f9 Documentation: dt-bindings: Add bindings for rk3288 DW MIPI DSI driver
add device tree bindings for rk3288 specific Synopsys DW MIPI DSI driver

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
2016-01-06 13:51:18 +08:00
Guoqing Jiang
d323ef0f1a md-cluster: update the documentation
Update design documentation based on recent development.
original version comes from Neil.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: NeilBrown <neilb@suse.com>
2016-01-06 11:39:06 +11:00
Stanimir Varbanov
845d5ca266 PCI: qcom: Document PCIe devicetree bindings
Document Qualcomm PCIe driver devicetree bindings.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
2016-01-05 15:29:34 -06:00
Yuan Sun
ed89c005b0 cgroup: Remove resource_counter.txt in Documentation/cgroup-legacy/00-INDEX.
Signed-off-by: Yuan Sun <sunyuan3@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2016-01-05 10:34:53 -05:00
Pali Rohár
dc17340e30 Fix documentation for adp1653 DT
Property names do not match real names needed by driver itself.
This patch fix this problem.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-01-05 09:28:53 -06:00
Geert Uytterhoeven
414ee536df ARM: psci: Fix indentation in DT bindings
Fix bogus indentation of the PSCI compatible values, reformat.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-01-05 09:28:38 -06:00
Daniel Vetter
df7d678bea drm/docs: more leftovers from the big vtable documentation pile
Another pile of vfuncs from the old gpu.tmpl xml documentation that
I've forgotten to delete. I spotted a few more things to
clarify/extend in the new kerneldoc while going through this once
more.

v2: Spelling fixes (Thierry).

v3: More spelling fixes and use Thierry's proposal to clarify why
drivers need to validate modes both in ->mode_fixup and ->mode_valid.

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-05 16:21:35 +01:00
Srinivas Pandruvada
a032d2de0b Documentation: cpufreq: intel_pstate: enhance documentation
This is an attempt to make documentation more user friendly.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Doug Smythies <dsmythies@telus.net>
Reviewed-by: Chen, Yu C <yu.c.chen@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-01-05 13:47:37 +01:00
Russell King
598bcc6ea6 Merge branches 'misc' and 'misc-rc6' into for-linus 2016-01-05 11:07:28 +00:00
David S. Miller
15ab90f400 NFC 4.5 pull request
This is the first NFC pull request for 4.5 and it brings:
 
 - A new driver for the STMicroelectronics ST95HF NFC chipset.
   The ST95HF is an NFC digital transceiver with an embedded analog
   front-end and as such relies on the Linux NFC digital
   implementation. This is the 3rd user of the NFC digital stack.
 
 - ACPI support for the ST st-nci and st21nfca drivers.
 
 - A small improvement for the nfcsim driver, as we can now tune
   the Rx delay through sysfs.
 
 - A bunch of minor cleanups and small fixes from Christophe Ricard,
   for a few drivers and the NFC core code.
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Merge tag 'nfc-next-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next

Samuel Ortiz says:

====================
NFC 4.5 pull request

This is the first NFC pull request for 4.5 and it brings:

- A new driver for the STMicroelectronics ST95HF NFC chipset.
  The ST95HF is an NFC digital transceiver with an embedded analog
  front-end and as such relies on the Linux NFC digital
  implementation. This is the 3rd user of the NFC digital stack.

- ACPI support for the ST st-nci and st21nfca drivers.

- A small improvement for the nfcsim driver, as we can now tune
  the Rx delay through sysfs.

- A bunch of minor cleanups and small fixes from Christophe Ricard,
  for a few drivers and the NFC core code.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-04 21:48:15 -05:00
Michael Turquette
b360ada3f1 clk: tegra: Changes for v4.5-rc1
This set of changes adds support for the Tegra210 SoC and contains a
 couple fixes and cleanups.
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Merge tag 'tegra-for-4.5-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-next

clk: tegra: Changes for v4.5-rc1

This set of changes adds support for the Tegra210 SoC and contains a
couple fixes and cleanups.
2016-01-04 16:16:45 -08:00
Pantelis Antoniou
03607ace80 configfs: implement binary attributes
ConfigFS lacked binary attributes up until now. This patch
introduces support for binary attributes in a somewhat similar
manner of sysfs binary attributes albeit with changes that
fit the configfs usage model.

Problems that configfs binary attributes fix are everything that
requires a binary blob as part of the configuration of a resource,
such as bitstream loading for FPGAs, DTBs for dynamically created
devices etc.

Look at Documentation/filesystems/configfs/configfs.txt for internals
and howto use them.

This patch is against linux-next as of today that contains
Christoph's configfs rework.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
[hch: folded a fix from Geert Uytterhoeven <geert+renesas@glider.be>]
[hch: a few tiny updates based on review feedback]
Signed-off-by: Christoph Hellwig <hch@lst.de>
2016-01-04 12:31:46 +01:00
Carlo Caione
ea22446a9d Documentation: watchdog: Add new bindings for meson8b
We make the documentation not meson6 specific anymore and add the new
binding for meson8b SoC.

Signed-off-by: Carlo Caione <carlo@endlessm.com>
2016-01-04 10:54:44 +01:00
Jacek Anaszewski
648da8ff48 Documentation: leds: Add description of brightness setting API
This patch adds description of the LED subsystem API for
setting an LED brightness.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2016-01-04 09:57:31 +01:00
Alban Bedel
c054761c6f devicetree: Add bindings for the ATH79 USB phy
Signed-off-by: Alban Bedel <albeu@free.fr>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: devicetree@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11496/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-01-04 09:42:24 +01:00
Lukas Wunner
3a848662c7 vga_switcheroo: Prettify documentation
Fix indentation of vga_switcheroo sections in gpu.tmpl.

Change section type of API documentation from "chapter" to "sect1"
so that the individual functions no longer clutter up the ToC.
Group together under a new "API" chapter.

Fix wording "heretoforth" -> "henceforth".

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-04 08:11:49 +01:00
Kamal Dasu
e2e5a2c618 i2c: brcmstb: Adding support for CM and DSL SoCs
Broadcoms DSL, CM (cable modem)and STB I2C core implementation have
8 data in/out registers that can transfer 8 bytes or 32 bytes max.
Cable and DSL "Peripheral" i2c cores use single byte per data
register and the STB can use 4 byte per data register transfer.
Adding support to take care of this difference. Accordingly added
the compatible string for SoCs using the "Peripheral" I2C block.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-01-03 19:50:09 +01:00
Wolfram Sang
0c739738a0 i2c: document binding for multi-master case
We need this binding because some I2C master drivers will need to adapt
their PM settings for the arbitration circuitry.

Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-01-02 22:10:32 +01:00
Jaedon Shin
1980eb9bd7 ata: ahci_brcmstb: add support for MIPS-based platforms
The BCM7xxx ARM-based and MIPS-based platforms share a similar hardware
block for AHCI SATA3.

This new compatible string, "brcm,bcm7425-ahci", may be used for most
MIPS-based platforms of 40nm process technology.

Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2015-12-31 21:19:35 -05:00
David S. Miller
c07f30ad68 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-12-31 18:20:10 -05:00
Linus Torvalds
8f5daf2a49 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Prevent XFRM per-cpu counter updates for one namespace from being
    applied to another namespace.  Fix from DanS treetman.

 2) Fix RCU de-reference in iwl_mvm_get_key_sta_id(), from Johannes
    Berg.

 3) Remove ethernet header assumption in nft_do_chain_netdev(), from
    Pablo Neira Ayuso.

 4) Fix cpsw PHY ident with multiple slaves and fixed-phy, from Pascal
    Speck.

 5) Fix use after free in sixpack_close and mkiss_close.

 6) Fix VXLAN fw assertion on bnx2x, from Yuval Mintz.

 7) natsemi doesn't check for DMA mapping errors, from Alexey
    Khoroshilov.

 8) Fix inverted test in ip6addrlbl_get(), from ANdrey Ryabinin.

 9) Missing initialization of needed_headroom in geneve tunnel driver,
    from Paolo Abeni.

10) Fix conntrack template leak in openvswitch, from Joe Stringer.

11) Mission initialization of wq->flags in sock_alloc_inode(), from
    Nicolai Stange.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (35 commits)
  sctp: sctp should release assoc when sctp_make_abort_user return NULL in sctp_close
  net, socket, socket_wq: fix missing initialization of flags
  drivers: net: cpsw: fix error return code
  openvswitch: Fix template leak in error cases.
  sctp: label accepted/peeled off sockets
  sctp: use GFP_USER for user-controlled kmalloc
  qlcnic: fix a loop exit condition better
  net: cdc_ncm: avoid changing RX/TX buffers on MTU changes
  geneve: initialize needed_headroom
  ipv6: honor ifindex in case we receive ll addresses in router advertisements
  addrconf: always initialize sysctl table data
  ipv6/addrlabel: fix ip6addrlbl_get()
  switchdev: bridge: Pass ageing time as clock_t instead of jiffies
  sh_eth: fix 16-bit descriptor field access endianness too
  veth: don’t modify ip_summed; doing so treats packets with bad checksums as good.
  net: usb: cdc_ncm: Adding Dell DW5813 LTE AT&T Mobile Broadband Card
  net: usb: cdc_ncm: Adding Dell DW5812 LTE Verizon Mobile Broadband Card
  natsemi: add checks for dma mapping errors
  rhashtable: Kill harmless RCU warning in rhashtable_walk_init
  openvswitch: correct encoding of set tunnel action attributes
  ...
2015-12-31 14:40:43 -08:00
Leilk Liu
5c5e09f623 spi: mtk: Add bindings for mediatek MT2701 soc platform
This patch adds a DT binding documentation for the MT2701 soc.

Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-31 22:09:37 +00:00
Arnd Bergmann
fc2f669e7d Merge tag 'bcm2835-soc-next-2015-12-28' of http://github.com/anholt/linux into next/soc
Merge "BCM2835 SOC changes for 4.5" from Eric Anholt:

This pull request includes the bcm2835 changes for 4.5 targeting the
arm-soc next/soc branch.

* tag 'bcm2835-soc-next-2015-12-28' of http://github.com/anholt/linux:
  ARM: bcm2835: Add Kconfig support for bcm2836
  ARM: bcm2835: Add a compat string for bcm2836 machine probe
  dt-bindings: Add root properties for Raspberry Pi 2

Conflicts:
	arch/arm/mach-bcm/Kconfig
2015-12-31 17:37:12 +01:00
Arnd Bergmann
d731afa460 Samsung DeviceTree updates and improvements for 4.5
1. eMMC/SDIO minor fixes usage of bindings on Snow and Peach
    Chromebooks.
 2. Remove FIMD from Odroid XU3-family because on XU3 it cannot be used
    yet and on XU3-Lite and XU4 it is not supported.
 3. Remove deprecated since June 2013 samsung,exynos5-hdmi.
 4. Add support for Pseudo Random Generator on Exynos4 (Trats2 for now).
    This depends on new SSS clock.
 5. Add rotator nodes for Exynos4 and Exynos5.
 6. Switch DWC3_1 on Odroid XU3 and XU3-Lite to peripheral mode because
    now it cannot be used as OTG.
 7. Cleanup the G2D usage on Exynos4 and add it to a proper domain
    in case of Exynos4210.
 8. Put MDMA1 in proper domain on Exynos4210 as well.
 9. Minor cleanups.
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Merge tag 'samsung-dt-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/dt

Merge "Samsung DeviceTree updates and improvements for 4.5" from Krzysztof Kozlowski:

1. eMMC/SDIO minor fixes usage of bindings on Snow and Peach
   Chromebooks.
2. Remove FIMD from Odroid XU3-family because on XU3 it cannot be used
   yet and on XU3-Lite and XU4 it is not supported.
3. Remove deprecated since June 2013 samsung,exynos5-hdmi.
4. Add support for Pseudo Random Generator on Exynos4 (Trats2 for now).
   This depends on new SSS clock.
5. Add rotator nodes for Exynos4 and Exynos5.
6. Switch DWC3_1 on Odroid XU3 and XU3-Lite to peripheral mode because
   now it cannot be used as OTG.
7. Cleanup the G2D usage on Exynos4 and add it to a proper domain
   in case of Exynos4210.
8. Put MDMA1 in proper domain on Exynos4210 as well.
9. Minor cleanups.

* tag 'samsung-dt-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (21 commits)
  ARM: dts: Unify G2D device node with other devices on exynos4
  ARM: dts: Add power domain to G2D device on exynos4210
  ARM: dts: MDMA1 device belongs to LCD0 power domain on exynos4210
  ARM: dts: Remove unneeded GPIO include in exynos4412-odroidu3
  ARM: dts: exynos4210-universal_c210: Disable DMA for UARTs
  ARM: dts: Use peripheral mode for dwc3_1 on exynos5422-odroidxu3
  ARM: dts: Add rotator node on exynos5420
  ARM: dts: Add rotator node on exynos5250
  ARM: dts: Fix power domain for sysmmu-rotator device on exynos4
  ARM: dts: Add rotator nodes on exynos4
  ARM: dts: Enable PRNG module on exynos4412-trats2
  ARM: dts: Add PRNG module for exynos4
  dt-bindings: remove deprecated compatible string from exynos-hdmi
  ARM: dts: Remove fimd node from exynos5422-odroidxu3-common
  ARM: dts: Mark eMMC as non-removable in exynos5250-snow-common
  ARM: dts: Remove broken-cd from eMMC node in exynos5420-peach-pi
  ARM: dts: Remove broken-cd from eMMC node in exynos5800-peach-pi
  ARM: dts: Mark SDIO as non-removable in exynos5250-snow-common
  ARM: dts: Mark SDIO as non-removable in exynos5420-peach-pit
  ARM: dts: Mark SDIO as non-removable in exynos5800-peach-pi
  ...
2015-12-31 17:31:56 +01:00
Arnd Bergmann
5d2c585c7d This pull request includes the bcm2835 changes for 4.5 targeting the
arm-soc next/drivers branch.
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Merge tag 'bcm2835-drivers-next-2015-12-28' of http://github.com/anholt/linux into next/drivers

Pull "BCM2835 drivers changes for 4.5" from Eric Anholt:

This pull request includes the bcm2835 changes for 4.5 targeting the
arm-soc next/drivers branch.

* tag 'bcm2835-drivers-next-2015-12-28' of http://github.com/anholt/linux:
  ARM: bcm2835: add rpi power domain driver
  dt-bindings: add rpi power domain driver bindings
  ARM: bcm2835: Define two new packets from the latest firmware.
2015-12-31 17:11:29 +01:00
Bhupesh Sharma
766faef1f4 Documentation: DT: Add entry for ARM SP805-WDT
This patch adds a devicetree binding documentation for ARM's
SP805 WatchDog Timer.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-31 16:40:00 +01:00
Al Viro
fceef393a5 switch ->get_link() to delayed_call, kill ->put_link()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-30 13:01:03 -05:00
Guenter Roeck
b4ffb19098 watchdog: Separate and maintain variables based on variable lifetime
All variables required by the watchdog core to manage a watchdog are
currently stored in struct watchdog_device. The lifetime of those
variables is determined by the watchdog driver. However, the lifetime
of variables used by the watchdog core differs from the lifetime of
struct watchdog_device. To remedy this situation, watchdog drivers
can implement ref and unref callbacks, to be used by the watchdog
core to lock struct watchdog_device in memory.

While this solves the immediate problem, it depends on watchdog drivers
to actually implement the ref/unref callbacks. This is error prone,
often not implemented in the first place, or not implemented correctly.

To solve the problem without requiring driver support, split the variables
in struct watchdog_device into two data structures - one for variables
associated with the watchdog driver, one for variables associated with
the watchdog core. With this approach, the watchdog core can keep track
of its variable lifetime and no longer depends on ref/unref callbacks
in the driver. As a side effect, some of the variables originally in
struct watchdog_driver are now private to the watchdog core and no longer
visible in watchdog drivers.

As a side effect of the changes made, an ioctl will now always fail
with -ENODEV after a watchdog device was unregistered with the character
device still open. Previously, it would only fail with -ENODEV in some
situations. Also, ioctl operations are now atomic from driver perspective.
With this change, it is now guaranteed that the driver will not unregister
a watchdog between a timeout change and the subsequent ping.

The 'ref' and 'unref' callbacks in struct watchdog_driver are no longer
used and marked as deprecated.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-12-29 20:36:03 +01:00
Shikha Singh
ccf614f5c0 DT: bindings: net: nfc: Add ST95HF binding doc
This patch includes ST95HF binding doc that guides how to
make node entry of ST95HF in DT file of any platform.

Signed-off-by: Shikha Singh <shikha.singh@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:11 +01:00
Damien Riegel
0f6d785c84 irqchip/ts4800: Add documentation for TS-4800 interrupt controller
This is an interrupt-controller implemented in an FPGA, to multiplex
interrupts generated from other IPs. The FPGA usually uses a GPIO as a
parent interrupt controller to notify that one of the multiplexed
interrupts has triggered.

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: kernel@savoirfairelinux.com
Link: http://lkml.kernel.org/r/1450728683-31416-1-git-send-email-damien.riegel@savoirfairelinux.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-12-29 11:58:53 +01:00
Thomas Gleixner
5c4acd97e8 irqchip core changes for v4.5
- renesas-intc-irqpin: Remove platform code, improve clock handling
  - sunxi-nmi: Extend NMI support to include A80
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Merge tag 'irqchip-core-v4.5' of git://git.infradead.org/users/jcooper/linux into irq/core

Pull irqchip core changes for v4.5 from Jason Cooper:

 - renesas-intc-irqpin: Remove platform code, improve clock handling

 - sunxi-nmi: Extend NMI support to include A80
2015-12-29 10:25:20 +01:00
Andrzej Hajda
f038f586c3 dt-bindings: remove deprecated compatible string from exynos-hdmi
samsung,exynos5-hdmi compatible was marked as deprecated in Jun 2013.
It was never used since then.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2015-12-29 09:07:11 +09:00
Mans Rullgard
2bfc9beb61 devicetree: watchdog: add binding for Sigma Designs SMP8642 watchdog
This adds a binding for the watchdog in Sigma Designs SMP8642 and
similar devices.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-12-28 23:03:55 +01:00
Martyn Welch
5c6bb88a1b Add binding documentation for Zodiac Watchdog Timer
This patchs adds documentation for the binding of the Zodiac RAVE
Switch Watchdog Processor. This is an i2c based watchdog.

Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-12-28 22:52:30 +01:00
Oleksij Rempel
a62a723189 DT: watchdog: add Alphascale asm9260 watchdog binding documentation.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-12-28 22:47:50 +01:00
Damien Riegel
bf90063999 watchdog: ts4800: add driver for TS-4800 watchdog
This watchdog is instantiated in a FPGA that is memory mapped. It is
made of only one register, called the feed register. Writing to this
register will re-arm the watchdog for a given time (and enable it if it
was disable). It can be disabled by writing a special value into it.

It is part of a syscon block, and the watchdog register offset in this
block varies from board to board. This offset is passed in the syscon
property after the phandle to the syscon node.

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-12-28 22:29:35 +01:00
Mark Yao
d4d3c6cbc2 dt-bindings: add document for rk3036-vop
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: devicetree@vger.kernel.org

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
2015-12-28 09:08:53 +08:00
Rafael J. Wysocki
9ad55cd9e6 Merge back earlier cpufreq material for v4.5. 2015-12-28 01:34:35 +01:00
Pratyush Anand
33b711269a watchdog: Read device status through sysfs attributes
This patch adds following attributes to watchdog device's sysfs interface
to read its different status.

* state - reads whether device is active or not
* identity - reads Watchdog device's identity string.
* timeout - reads current timeout.
* timeleft - reads timeleft before watchdog generates a reset
* bootstatus - reads status of the watchdog device at boot
* status - reads watchdog device's  internal status bits
* nowayout - reads whether nowayout feature was set or not

Testing with iTCO_wdt:
 # cd /sys/class/watchdog/watchdog1/
 # ls
bootstatus  dev  device  identity  nowayout  power  state
subsystem  timeleft  timeout  uevent
 # cat identity
iTCO_wdt
 # cat timeout
30
 # cat state
inactive
 # echo > /dev/watchdog1
 # cat timeleft
26
 # cat state
active
 # cat bootstatus
0
 # cat nowayout
0

Signed-off-by: Pratyush Anand <panand@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-12-27 16:55:57 +01:00
Greg Kroah-Hartman
02c34ccc1d Third set of new stuff for IIO in the 4.5 cycle.
New driver features
 - us5182
   * Add interrupt support and rising / falling threshold events.
 
 Cleanups / fixes to new stuff / minor additions
 * Expose the IIO value formatting function for drivers to
   make use of internally.
 - ina2xx
    * Fix wrong channel order
    * Fix incorrect reporting of endianness
    * Adding documentation of ABI unique to this device
 - mma8452
   * Drop an unused register description
   * Use an enum for the channel index to aid readability
 - sca3000
   * Use standard NULL comparison style
 - us5182
   * fix an inconsistency in status of enable (a bug with no real effect until
     above patches are applied)
   * refactor the read_raw function to improve maintainability / readability.
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Merge tag 'iio-for-4.5c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Third set of new stuff for IIO in the 4.5 cycle.

New driver features
- us5182
  * Add interrupt support and rising / falling threshold events.

Cleanups / fixes to new stuff / minor additions
* Expose the IIO value formatting function for drivers to
  make use of internally.
- ina2xx
   * Fix wrong channel order
   * Fix incorrect reporting of endianness
   * Adding documentation of ABI unique to this device
- mma8452
  * Drop an unused register description
  * Use an enum for the channel index to aid readability
- sca3000
  * Use standard NULL comparison style
- us5182
  * fix an inconsistency in status of enable (a bug with no real effect until
    above patches are applied)
  * refactor the read_raw function to improve maintainability / readability.
2015-12-26 17:05:25 -08:00
Greg Kroah-Hartman
35ea984dac Second set of IIO new drivers, functionality and cleanups for the 4.5 cycle.
The big one here is the configfs support which has been a long time in the
 works but should allow for cleaner ways to do instantiation of those elements
 of IIO that aren't directly connected to specific hardware. Lots of cool new
 stuff we can use this for in the works!
 
 New core stuff (basically all configfs support related)
 * Configfs support
   - Core support (was waiting for a configfs patch that went in around 4.4rc2)
   - A little fixlet to add a configfs.h to contain a reference to the
     configfs_subsystem structure.
 * Some infrastructure to simplify handling of software based triggers
   (i.e. ones with no actual hardware associated with them)
 * A high resolution timer based trigger.  This has been around for years
     but until the configfs support was ready we didn't have a sensible way
     of instantiating instances of it (the method used for the sysfs_trigger
     has never been really satisfactory)
 
 New Device Support
 * AMS iAQ Volatile Organic Compounds sensor support.
 * Freescale imx7d ADC driver
 * Maxim MAX30100 oximeter driver (note that for these devices most of the
   smart stuff will be in userspace - effectively they are just light sensors
   with some interesting led synchronization as far as the kernel is concerned).
 * Microchip mcp3421 support added to the mcp3422 driver.
 * TI adc124s021 support added to the adc128s052 driver.
 * TI ina219, inda226 power monitors. Note that there is an existing hwmon driver
   for these parts, the usecase is somewhat different so it is unclear at this
   point if the hwmon driver will eventually be replaced by a bridge from
   this driver.  In the meantime the Kconfig dependencies should prevent both
   from being built.
 
 New driver functionality
 * us8152d power management support.
 
 Cleanups, fixups
 * Use list_for_each_entry_safe instead of list_for_each_safe with the entry
   bit coded longhand.
 * Select IRQ_WORK for IIO_DUMMY_EVGEN.  This is a fix that somehow got lost
   when the driver was moved so lets do it again.
 * st-accel - drop an unused define.
 * vz89x, lidar - optimize i2c transactions by using a single i2c tranfers
   instead of multiple calls where supported (fall back to smbus calls as
   before if not).
 * Use dev_get_platdata() in staging drivers: tsl2x7x, adcs and frequency
   drivers instead of direct access to the structure element.
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Merge tag 'iio-for-4.5b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second set of IIO new drivers, functionality and cleanups for the 4.5 cycle.

The big one here is the configfs support which has been a long time in the
works but should allow for cleaner ways to do instantiation of those elements
of IIO that aren't directly connected to specific hardware. Lots of cool new
stuff we can use this for in the works!

New core stuff (basically all configfs support related)
* Configfs support
  - Core support (was waiting for a configfs patch that went in around 4.4rc2)
  - A little fixlet to add a configfs.h to contain a reference to the
    configfs_subsystem structure.
* Some infrastructure to simplify handling of software based triggers
  (i.e. ones with no actual hardware associated with them)
* A high resolution timer based trigger.  This has been around for years
    but until the configfs support was ready we didn't have a sensible way
    of instantiating instances of it (the method used for the sysfs_trigger
    has never been really satisfactory)

New Device Support
* AMS iAQ Volatile Organic Compounds sensor support.
* Freescale imx7d ADC driver
* Maxim MAX30100 oximeter driver (note that for these devices most of the
  smart stuff will be in userspace - effectively they are just light sensors
  with some interesting led synchronization as far as the kernel is concerned).
* Microchip mcp3421 support added to the mcp3422 driver.
* TI adc124s021 support added to the adc128s052 driver.
* TI ina219, inda226 power monitors. Note that there is an existing hwmon driver
  for these parts, the usecase is somewhat different so it is unclear at this
  point if the hwmon driver will eventually be replaced by a bridge from
  this driver.  In the meantime the Kconfig dependencies should prevent both
  from being built.

New driver functionality
* us8152d power management support.

Cleanups, fixups
* Use list_for_each_entry_safe instead of list_for_each_safe with the entry
  bit coded longhand.
* Select IRQ_WORK for IIO_DUMMY_EVGEN.  This is a fix that somehow got lost
  when the driver was moved so lets do it again.
* st-accel - drop an unused define.
* vz89x, lidar - optimize i2c transactions by using a single i2c tranfers
  instead of multiple calls where supported (fall back to smbus calls as
  before if not).
* Use dev_get_platdata() in staging drivers: tsl2x7x, adcs and frequency
  drivers instead of direct access to the structure element.
2015-12-26 17:03:33 -08:00
Greg Kroah-Hartman
daf273350d phy: for 4.5
*) new PHY driver for hi6220 usb and rcar gen3 usb2
 *) deprecate phy-omap-control driver. phy-omap-control driver was added
    when there was no proper infrastructure for doing control module
    initialization. The phy-omap-control driver is not an 'actual' PHY
    driver and it was just a hack to do PHY related control module
    initialization. Now with SYSCON framework in the kernel, control
    module setttings can be done using APIs provided by syscon.
 *) usbphy-internal pll creates the needed 480MHz and is also a
    supply-clock back to the core clock-controller in Rockchip SoCs.
    This is now modeled as a real clock.
 *) calibrate mt65xx usb3 PHY for better eye diagram and receiver
    sensitivity.
 *) Miscellaneous cleanups.
 
 Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next

Kishon writes:

phy: for 4.5

*) new PHY driver for hi6220 usb and rcar gen3 usb2
*) deprecate phy-omap-control driver. phy-omap-control driver was added
   when there was no proper infrastructure for doing control module
   initialization. The phy-omap-control driver is not an 'actual' PHY
   driver and it was just a hack to do PHY related control module
   initialization. Now with SYSCON framework in the kernel, control
   module setttings can be done using APIs provided by syscon.
*) usbphy-internal pll creates the needed 480MHz and is also a
   supply-clock back to the core clock-controller in Rockchip SoCs.
   This is now modeled as a real clock.
*) calibrate mt65xx usb3 PHY for better eye diagram and receiver
   sensitivity.
*) Miscellaneous cleanups.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2015-12-26 17:01:18 -08:00
Greg Kroah-Hartman
f7dbd84fd4 The chipidea changes for v4.5-rc1
- Delete static debug for chipidea driver.
 - Suspend USB core when A device tries to switch to peripheral mode,
   at former design, it just stopped SoF simply but USB core doesn't know it.
 - Several small changes.
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Merge tag 'usb-ci-v4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-testing

Peter writes:

The chipidea changes for v4.5-rc1

- Delete static debug for chipidea driver.
- Suspend USB core when A device tries to switch to peripheral mode,
  at former design, it just stopped SoF simply but USB core doesn't know it.
- Several small changes.
2015-12-26 16:59:14 -08:00
Greg Kroah-Hartman
d7a26beb6f Update extcon for 4.5
Detailed description for patchset:
 1. Add new MAX3355 extcon driver
 - Maxim Integrated MAX3355E chip integrates a charge pump
   and comparator to enable a system with an integrated
   USB OTG dual-role transceiver to function as an USB OTG
   dual-role device.
 
 2. Update the extcon-arizona driver for jack detection
 - Add the device binding for the jack detection and add
   the documentation of extcon-arizona.c.
 
 3. Fix the minor issue of extcon driver
 - Add IRQF_ONESHOT to interrupt flags of extcon-rt8973.
 - Fix the return value regmap_irq_get_virq() of
   extcon-max(14577|77693|77843).c driver by using script[1].
   [1] http://permalink.gmane.org/gmane.linux.kernel/2046107
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Merge tag 'extcon-next-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next

Chanwoo writes:

Update extcon for 4.5

Detailed description for patchset:
1. Add new MAX3355 extcon driver
- Maxim Integrated MAX3355E chip integrates a charge pump
  and comparator to enable a system with an integrated
  USB OTG dual-role transceiver to function as an USB OTG
  dual-role device.

2. Update the extcon-arizona driver for jack detection
- Add the device binding for the jack detection and add
  the documentation of extcon-arizona.c.

3. Fix the minor issue of extcon driver
- Add IRQF_ONESHOT to interrupt flags of extcon-rt8973.
- Fix the return value regmap_irq_get_virq() of
  extcon-max(14577|77693|77843).c driver by using script[1].
  [1] http://permalink.gmane.org/gmane.linux.kernel/2046107
2015-12-26 16:58:05 -08:00
Greg Kroah-Hartman
87cf5586fd usb: patches for v4.5
A ton of improvements to dwc2 have been made. The
 driver should be a lot more stable on v4.5 then ever
 before.
 
 Our good old dwc3 got a few cleanups and misc fixes
 and also added support to Xilinx's integration of
 this IP.
 
 Yoshihiro Shimoda gives us support for a new USB3
 peripheral controller from Renesas.
 
 Other than these, the usual misc fixes all over the
 place.
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Merge tag 'usb-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.5

A ton of improvements to dwc2 have been made. The
driver should be a lot more stable on v4.5 then ever
before.

Our good old dwc3 got a few cleanups and misc fixes
and also added support to Xilinx's integration of
this IP.

Yoshihiro Shimoda gives us support for a new USB3
peripheral controller from Renesas.

Other than these, the usual misc fixes all over the
place.
2015-12-26 16:56:25 -08:00
Robert Elliott
b03539665d init, Documentation: Remove ramdisk_blocksize mentions
The brd driver has never supported the ramdisk_blocksize kernel
parameter that was in the rd driver it replaced, so remove
mention of this parameter from comments and Documentation.

Commit 9db5579be4 ("rewrite rd") replaced rd with brd, keeping
a brd_blocksize variable in struct brd_device but never using it.

Commit a2cba2913c ("brd: get rid of unused members from struct
brd_device") removed the unused variable.

Commit f5abc8e758 ("Documentation/blockdev/ramdisk.txt: updates")
removed mentions of ramdisk_blocksize from that file.

Signed-off-by: Robert Elliott <elliott@hpe.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-12-26 05:22:00 -07:00
Michael Turquette
5b50c522d5 Merge branch 'clk-lpc32xx' into clk-next 2015-12-24 12:34:29 -08:00
Vladimir Zapolskiy
d3efc5ac59 dt-bindings: clock: add description of LPC32xx USB clock controller
NXP LPC32xx USB controller has a subdevice, which controls USB AHB
slave, USB OTG, USB OHCI, USB device and I2C controller to USB phy
clocks, this change adds description of the clock controller, for more
details reference LPC32xx User's Manual, namely USB control, OTG clock
control and OTG clock status registers.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2015-12-24 12:31:21 -08:00
Vladimir Zapolskiy
92e16f0fb2 dt-bindings: clock: add description of LPC32xx clock controller
NXP LPC32xx SoC has a clocking and power control unit (CPC) as a part
of system control block (SCB). CPC is supplied by two external
oscillators and it manages core and most of peripheral
clocks, the change adds description of DT bindings for clock
controller found on LPC32xx SoC series.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2015-12-24 12:31:19 -08:00
Markus Elfring
563c17cb20 Documentation-getdelays: Apply a recommendation from "checkpatch.pl" in main()
The script "checkpatch.pl" pointed out that assignments should usually
not be performed within condition checks.
Thus move the assignment for the variable "nl_sd" to a separate statement.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-12-24 07:22:32 -07:00
SeongJae Park
b6e14040c8 Documentation: HOWTO: update versions from 3.x to 4.x
Versions in HOWTO was updated to 4.x by commit
e4144fe5d4 ("docs: update HOWTO for 3.x ->
4.x versioning") but not applied to Korean translation. This commit
apply the change.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-12-24 07:12:23 -07:00
SeongJae Park
403a970cd3 Documentation: remove outdated references from translations
Outdated link to linux-next wiki was removed by commit
ace80793d1 ("Documentation: remove
outdated references to the linux-next wiki"). However, the change was
not applied to translations. This commit apply the change to
translations.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-12-24 07:11:58 -07:00
Linus Walleij
a898c8358a Exynos-specific drivers for 4.5:
1. Add a pinctrl driver for Exynos5410.
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Merge tag 'samsung-drivers-4.5' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into devel

Exynos-specific drivers for 4.5:
1. Add a pinctrl driver for Exynos5410.
2015-12-24 09:54:53 +01:00
Michael Turquette
cf87a88f51 Allwinner clocks changes for 4.5
Clock patches for the Allwinner SoCs:
   - H3 clocks
   - A10/A20 Video Engine clocks
   - DRAM gates
   - A80 special CPU clock
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Merge tag 'sunxi-clocks-for-4.5' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next

Allwinner clocks changes for 4.5

Clock patches for the Allwinner SoCs:
  - H3 clocks
  - A10/A20 Video Engine clocks
  - DRAM gates
  - A80 special CPU clock
2015-12-23 23:23:18 -08:00
Peter Chen
3a35d59a69 usb: chipidea: clean up CONFIG_USB_CHIPIDEA_DEBUG reference
Since this configuration option has deleted, cleans up all
its references.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Reported-by: Valentin Rothberg <valentinrothberg@gmail.com>
2015-12-24 14:15:27 +08:00
Hongtao Jia
2330770797 dt-bindings: Add QorIQ TMU thermal bindings
Add bindings documentation for TMU (Thermal Monitoring Unit) on QorIQ
platform.

Signed-off-by: Jia Hongtao <hongtao.jia@freescale.com>
Reviewed-by: Scott Wood <scottwood@freescale.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2015-12-23 22:21:10 -06:00
Dave Airlie
20f8e032e6 Backmerge drm-fixes merge into Linus's tree into drm-next.
This merges '5b726e06d6e8309e5c9ef4109a32caf27c71dfc8' into drm-next

Just to resolve some merges to make Daniel's life easier.

Signed-off-by: DAve Airlie <airlied@redhat.com>
2015-12-24 08:08:47 +10:00
Christoph Hellwig
feb7c1e38b IB: remove in-kernel support for memory windows
Remove the unused ib_allow_mw and ib_bind_mw functions, remove the
unused IB_WR_BIND_MW and IB_WC_BIND_MW opcodes and move ib_dealloc_mw
into the uverbs module.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [core]
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-23 14:29:04 -05:00
Matan Barak
045959db65 IB/cma: Add configfs for rdma_cm
Users would like to control the behaviour of rdma_cm.
For example, old applications which don't set the
required RoCE gid type could be executed on RoCE V2
network types. In order to support this configuration,
we implement a configfs for rdma_cm.

In order to use the configfs, one needs to mount it and
mkdir <IB device name> inside rdma_cm directory.

The patch adds support for a single configuration file,
default_roce_mode. The mode can either be "IB/RoCE v1" or
"RoCE v2".

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-23 10:39:52 -05:00
Matan Barak
470be516a2 IB/core: Add gid attributes to sysfs
This patch set adds attributes of net device and gid type to each GID
in the GID table. Users that use verbs directly need to specify
the GID index. Since the same GID could have different types or
associated net devices, users should have the ability to query the
associated GID attributes. Adding these attributes to sysfs.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-23 10:35:11 -05:00
Bard Liao
3ae08dc0fc ASoC: rt5651: add ACPI and OF support
Add required tables and the binding document for ACPI and OF matching.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-23 12:21:14 +00:00
Takashi Iwai
f80e39e022 ASoC: Updates for v4.5
This is quite a busy release on the driver front with a lot of new
 drivers being added but comparatively quiet on the core side with only
 one big change going in and that a fairly straightforward refactoring.
 
  - Conversion of the array of DAI links to a list by Mengdong Lin,
    supporting dynamically adding and removing DAI links.
  - Some more fixes for the topology code, though it is still not final
    and ready for enabling in production.  We really need to get to the
    point where that can be done.
  - A pile of changes for Intel SkyLake drivers which hopefully deliver
    some useful initial functionality for systems with this chipset,
    though there is more work still to come.
  - New drivers for a number of Imagination Technologies IPs.
  - Lots of new features and cleanups for the Renesas drivers.
  - ANC support for WM5110.
  - New driver for Atmel class D speaker drivers.
  - New drivers for Cirrus CS47L24 and WM1831.
  - New driver for Dialog DA7128.
  - New drivers for Realtek RT5659 and RT56156.
  - New driver for Rockchip RK3036.
  - New driver for TI PC3168A
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Merge tag 'asoc-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v4.5

This is quite a busy release on the driver front with a lot of new
drivers being added but comparatively quiet on the core side with only
one big change going in and that a fairly straightforward refactoring.

 - Conversion of the array of DAI links to a list by Mengdong Lin,
   supporting dynamically adding and removing DAI links.
 - Some more fixes for the topology code, though it is still not final
   and ready for enabling in production.  We really need to get to the
   point where that can be done.
 - A pile of changes for Intel SkyLake drivers which hopefully deliver
   some useful initial functionality for systems with this chipset,
   though there is more work still to come.
 - New drivers for a number of Imagination Technologies IPs.
 - Lots of new features and cleanups for the Renesas drivers.
 - ANC support for WM5110.
 - New driver for Atmel class D speaker drivers.
 - New drivers for Cirrus CS47L24 and WM1831.
 - New driver for Dialog DA7128.
 - New drivers for Realtek RT5659 and RT56156.
 - New driver for Rockchip RK3036.
 - New driver for TI PC3168A
2015-12-23 08:33:52 +01:00
Takashi Iwai
59c8231089 Merge branch 'for-linus' into for-next
Conflicts:
	drivers/gpu/drm/i915/intel_pm.c
2015-12-23 08:33:34 +01:00
Yoshihiro Shimoda
746bfe63bb usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller
R-Car H3 has USB3.0 peripheral controllers. This controller's has the
following features:
 - Supports super, high and full speed
 - Contains 30 pipes for bulk or interrupt transfer
 - Contains dedicated DMA controller

This driver doesn't support the dedicated DMAC for now.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-22 21:58:15 -06:00
Michael Turquette
ce6dd266d5 Merge branch 'clk-bcm2835' into clk-next 2015-12-22 16:49:38 -08:00
Eric Anholt
9f697864b3 clk: bcm2835: Add bindings for the auxiliary peripheral clock gates.
These will be used for enabling UART1, SPI1, and SPI2.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2015-12-22 16:46:58 -08:00
Mark Brown
fec89f9465 Merge remote-tracking branches 'asoc/topic/wm8962', 'asoc/topic/wm8974' and 'asoc/topic/wm9713' into asoc-next 2015-12-23 00:23:54 +00:00
Mark Brown
d1587e345c Merge remote-tracking branches 'asoc/topic/rt286', 'asoc/topic/rt5616' and 'asoc/topic/rt5677' into asoc-next 2015-12-23 00:23:49 +00:00
Mark Brown
81b6863cae Merge remote-tracking branches 'asoc/topic/pxa', 'asoc/topic/qcom', 'asoc/topic/rcar', 'asoc/topic/rk3036' and 'asoc/topic/rockchip' into asoc-next 2015-12-23 00:23:46 +00:00
Mark Brown
b9546d09b1 Merge remote-tracking branches 'asoc/topic/fsl-spdif', 'asoc/topic/img' and 'asoc/topic/intel' into asoc-next 2015-12-23 00:23:43 +00:00
Mark Brown
9764350d71 Merge remote-tracking branches 'asoc/topic/dpcm', 'asoc/topic/dwc', 'asoc/topic/fsl', 'asoc/topic/fsl-asrc' and 'asoc/topic/fsl-esai' into asoc-next 2015-12-23 00:23:40 +00:00
Mark Brown
64dc98d374 Merge remote-tracking branches 'asoc/topic/da7219', 'asoc/topic/dai-link' and 'asoc/topic/doc' into asoc-next 2015-12-23 00:23:39 +00:00