Commit Graph

15321 Commits

Author SHA1 Message Date
Mike Turquette
497d2214e5 Samsung Clock fixes for 3.13-rc7
* Several patches fixing up incorrectly defined register addresses and
   bitfield offsets that could lead to undefined operation when accessing
   respective registers or bitfields.
 
  1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
 
  2a) clk: samsung: exynos5250: Fix ACP gate register offset
  2b) clk: samsung: exynos5250: Add MDMA0 clocks
  2c) ARM: dts: exynos5250: Fix MDMA0 clock number
 
  3) clk: samsung: exynos4: Correct SRC_MFC register
 
    All three issues have been present since Exynos5250 and Exynos4 clock
    drivers were added by commits 6e3ad26816 ("clk: exynos5250:
    register clocks using common clock framework") and e062b57177
    ("clk: exynos4: register clocks using common clock framework")
    respectively.
 
 * Patch to fix automatic disabling of Exynos5250 sysreg clock that could
   cause undefined operation of several peripherals, such as USB, I2C,
   MIPI or display block.
 
  4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
     clock
 
    Present since Exynos5250 clock drivers was added by commits
    6e3ad26816 ("clk: exynos5250: register clocks using common clock
    framework").
 
 * Patch fixing compilation warning in clk-exynos-audss driver when
   CONFIG_PM_SLEEP is disabled.
 
  5) clk: exynos: File scope reg_save array should depend on PM_SLEEP
 
    Present since the driver was added by commit 1241ef94cc ("clk:
    samsung: register audio subsystem clocks using common clock
    framework").
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Merge tag 'samsung-clk-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-fixes

Samsung Clock fixes for 3.13-rc7

* Several patches fixing up incorrectly defined register addresses and
  bitfield offsets that could lead to undefined operation when accessing
  respective registers or bitfields.

 1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks

 2a) clk: samsung: exynos5250: Fix ACP gate register offset
 2b) clk: samsung: exynos5250: Add MDMA0 clocks
 2c) ARM: dts: exynos5250: Fix MDMA0 clock number

 3) clk: samsung: exynos4: Correct SRC_MFC register

   All three issues have been present since Exynos5250 and Exynos4 clock
   drivers were added by commits 6e3ad26816 ("clk: exynos5250:
   register clocks using common clock framework") and e062b57177
   ("clk: exynos4: register clocks using common clock framework")
   respectively.

* Patch to fix automatic disabling of Exynos5250 sysreg clock that could
  cause undefined operation of several peripherals, such as USB, I2C,
  MIPI or display block.

 4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
    clock

   Present since Exynos5250 clock drivers was added by commits
   6e3ad26816 ("clk: exynos5250: register clocks using common clock
   framework").

* Patch fixing compilation warning in clk-exynos-audss driver when
  CONFIG_PM_SLEEP is disabled.

 5) clk: exynos: File scope reg_save array should depend on PM_SLEEP

   Present since the driver was added by commit 1241ef94cc ("clk:
   samsung: register audio subsystem clocks using common clock
   framework").
2014-01-05 21:36:43 -08:00
Abhilash Kesavan
8fb9aeb7a7 clk: samsung: exynos5250: Add MDMA0 clocks
Adds gate clock for MDMA0 on Exynos5250 SoC. This is needed to ensure
that the clock is enabled when MDMA0 is used on systems on which
firmware gates the clockby default.

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
[t.figa: Updated patch description.]
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2013-12-30 17:55:52 +01:00
Linus Torvalds
c5fdd531b5 Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 - fix for a memory leak on certain unplug events
 - a collection of bcache fixes from Kent and Nicolas
 - a few null_blk fixes and updates form Matias
 - a marking of static of functions in the stec pci-e driver

* 'for-linus' of git://git.kernel.dk/linux-block:
  null_blk: support submit_queues on use_per_node_hctx
  null_blk: set use_per_node_hctx param to false
  null_blk: corrections to documentation
  null_blk: warning on ignored submit_queues param
  null_blk: refactor init and init errors code paths
  null_blk: documentation
  null_blk: mem garbage on NUMA systems during init
  drivers: block: Mark the functions as static in skd_main.c
  bcache: New writeback PD controller
  bcache: bugfix for race between moving_gc and bucket_invalidate
  bcache: fix for gc and writeback race
  bcache: bugfix - moving_gc now moves only correct buckets
  bcache: fix for gc crashing when no sectors are used
  bcache: Fix heap_peek() macro
  bcache: Fix for can_attach_cache()
  bcache: Fix dirty_data accounting
  bcache: Use uninterruptible sleep in writeback
  bcache: kthread don't set writeback task to INTERUPTIBLE
  block: fix memory leaks on unplugging block device
  bcache: fix sparse non static symbol warning
2013-12-24 10:06:03 -08:00
Linus Torvalds
4b69316ede Merge branch 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "There's one interseting commit - "libata, freezer: avoid block device
  removal while system is frozen".  It's an ugly hack working around a
  deadlock condition between driver core resume and block layer device
  removal paths through freezer which was made more reproducible by
  writeback being converted to workqueue some releases ago.  The bug has
  nothing to do with libata but it's just an workaround which is easy to
  backport.  After discussion, Rafael and I seem to agree that we don't
  really need kernel freezables - both kthread and workqueue.  There are
  few specific workqueues which constitute PM operations and require
  freezing, which will be converted to use workqueue_set_max_active()
  instead.  All other kernel freezer uses are planned to be removed,
  followed by the removal of kthread and workqueue freezer support,
  hopefully.

  Others are device-specific fixes.  The most notable is the addition of
  NO_NCQ_TRIM which is used to disable queued TRIM commands to Micro
  M500 SSDs which otherwise suffers data corruption"

* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata, freezer: avoid block device removal while system is frozen
  libata: implement ATA_HORKAGE_NO_NCQ_TRIM and apply it to Micro M500 SSDs
  libata: disable a disk via libata.force params
  ahci: bail out on ICH6 before using AHCI BAR
  ahci: imx: Explicitly clear IMX6Q_GPR13_SATA_MPLL_CLK_EN
  libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk for Seagate Momentus SpinPoint M8
2013-12-24 09:35:58 -08:00
Matias Bjørling
200052440d null_blk: set use_per_node_hctx param to false
The defaults for the module is to instantiate itself with blk-mq and a
submit queue for each CPU node in the system.

To save resources, initialize instead with a single submit queue.

Signed-off-by: Matias Bjorling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-12-21 09:30:33 -07:00
Matias Bjørling
89ed05eea0 null_blk: corrections to documentation
Randy Dunlap reported a couple of grammar errors and unfortunate usages of
socket/node/core.

Signed-off-by: Matias Bjorling <m@bjorling.me>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-12-21 09:30:33 -07:00
Matias Bjorling
12f8f4fc03 null_blk: documentation
Add description of module and its parameters.

Signed-off-by: Matias Bjorling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-12-19 08:09:41 -07:00
Linus Torvalds
a81bddde96 Merge branch 'keys-devel' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull crypto key patches from David Howells:
 "There are four items:

   - A patch to fix X.509 certificate gathering.  The problem was that I
     was coming up with a different path for signing_key.x509 in the
     build directory if it didn't exist to if it did exist.  This meant
     that the X.509 cert container object file would be rebuilt on the
     second rebuild in a build directory and the kernel would get
     relinked.

   - Unconditionally remove files generated by SYSTEM_TRUSTED_KEYRING=y
     when doing make mrproper.

   - Actually initialise the persistent-keyring semaphore for
     init_user_ns.  I have no idea why this works at all for users in
     the base user namespace unless it's something to do with systemd
     containerising the system.

   - Documentation for module signing"

* 'keys-devel' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  Add Documentation/module-signing.txt file
  KEYS: fix uninitialized persistent_keyring_register_sem
  KEYS: Remove files generated when SYSTEM_TRUSTED_KEYRING=y
  X.509: Fix certificate gathering
2013-12-18 14:09:08 -08:00
Hannes Frederic Sowa
188b04d580 ipv4: improve documentation of ip_no_pmtu_disc
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-17 15:20:15 -05:00
Robin H. Johnson
b8bd6dc361 libata: disable a disk via libata.force params
A user on StackExchange had a failing SSD that's soldered directly
onto the motherboard of his system. The BIOS does not give any option
to disable it at all, so he can't just hide it from the OS via the
BIOS.

The old IDE layer had hdX=noprobe override for situations like this,
but that was never ported to the libata layer.

This patch implements a disable flag for libata.force.

Example use:

 libata.force=2.0:disable

[v2 of the patch, removed the nodisable flag per Tejun Heo]

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Link: http://unix.stackexchange.com/questions/102648/how-to-tell-linux-kernel-3-0-to-completely-ignore-a-failing-disk
Link: http://askubuntu.com/questions/352836/how-can-i-tell-linux-kernel-to-completely-ignore-a-disk-as-if-it-was-not-even-co
Link: http://superuser.com/questions/599333/how-to-disable-kernel-probing-for-drive
2013-12-16 12:41:57 -05:00
Linus Torvalds
4a251dd29c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Revert CHECKSUM_COMPLETE optimization in pskb_trim_rcsum(), I can't
    figure out why it breaks things.

 2) Fix comparison in netfilter ipset's hash_netnet4_data_equal(), it
    was basically doing "x == x", from Dave Jones.

 3) Freescale FEC driver was DMA mapping the wrong number of bytes, from
    Sebastian Siewior.

 4) Blackhole and prohibit routes in ipv6 were not doing the right thing
    because their ->input and ->output methods were not being assigned
    correctly.  Now they behave properly like their ipv4 counterparts.
    From Kamala R.

 5) Several drivers advertise the NETIF_F_FRAGLIST capability, but
    really do not support this feature and will send garbage packets if
    fed fraglist SKBs.  From Eric Dumazet.

 6) Fix long standing user triggerable BUG_ON over loopback in RDS
    protocol stack, from Venkat Venkatsubra.

 7) Several not so common code paths can potentially try to invoke
    packet scheduler actions that might be NULL without checking.  Shore
    things up by either 1) defining a method as mandatory and erroring
    on registration if that method is NULL 2) defininig a method as
    optional and the registration function hooks up a default
    implementation when NULL is seen.  From Jamal Hadi Salim.

 8) Fix fragment detection in xen-natback driver, from Paul Durrant.

 9) Kill dangling enter_memory_pressure method in cg_proto ops, from
    Eric W Biederman.

10) SKBs that traverse namespaces should have their local_df cleared,
    from Hannes Frederic Sowa.

11) IOCB file position is not being updated by macvtap_aio_read() and
    tun_chr_aio_read().  From Zhi Yong Wu.

12) Don't free virtio_net netdev before releasing all of the NAPI
    instances.  From Andrey Vagin.

13) Procfs entry leak in xt_hashlimit, from Sergey Popovich.

14) IPv6 routes that are no cached routes should not count against the
    garbage collection limits.  We had this almost right, but were
    missing handling addrconf generated routes properly.  From Hannes
    Frederic Sowa.

15) fib{4,6}_rule_suppress() have to consider potentially seeing NULL
    route info when they are called, from Stefan Tomanek.

16) TUN and MACVTAP have had truncated packet signalling for some time,
    fix from Jason Wang.

17) Fix use after frrr in __udp4_lib_rcv(), from Eric Dumazet.

18) xen-netback does not interpret the NAPI budget properly for TX work,
    fix from Paul Durrant.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (132 commits)
  igb: Fix for issue where values could be too high for udelay function.
  i40e: fix null dereference
  xen-netback: fix gso_prefix check
  net: make neigh_priv_len in struct net_device 16bit instead of 8bit
  drivers: net: cpsw: fix for cpsw crash when build as modules
  xen-netback: napi: don't prematurely request a tx event
  xen-netback: napi: fix abuse of budget
  sch_tbf: use do_div() for 64-bit divide
  udp: ipv4: must add synchronization in udp_sk_rx_dst_set()
  net:fec: remove duplicate lines in comment about errata ERR006358
  Revert "8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature"
  8390 : Replace ei_debug with msg_enable/NETIF_MSG_* feature
  xen-netback: make sure skb linear area covers checksum field
  net: smc91x: Fix device tree based configuration so it's usable
  udp: ipv4: fix potential use after free in udp_v4_early_demux()
  macvtap: signal truncated packets
  tun: unbreak truncated packet signalling
  net: sched: htb: fix the calculation of quantum
  net: sched: tbf: fix the calculation of max_size
  micrel: add support for KSZ8041RNLI
  ...
2013-12-15 11:56:47 -08:00
Linus Torvalds
93e1585e2c A set of device-mapper fixes for 3.13.
A fix for possible memory corruption during DM table load, fix a
 possible leak of snapshot space in case of a crash, fix a possible
 deadlock due to a shared workqueue in the delay target, fix to
 initialize read-only module parameters that are used to export metrics
 for dm stats and dm bufio.
 
 Quite a few stable fixes were identified for both the thin-provisioning
 and caching targets as a result of increased regression testing using
 the device-mapper-test-suite (dmts).  The most notable of these are the
 reference counting fixes for the space map btree that is used by the
 dm-array interface -- without these the dm-cache metadata will leak,
 resulting in dm-cache devices running out of metadata blocks.  Also,
 some important fixes related to the thin-provisioning target's
 transition to read-only mode on error.
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Merge tag 'dm-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "A set of device-mapper fixes for 3.13.

  A fix for possible memory corruption during DM table load, fix a
  possible leak of snapshot space in case of a crash, fix a possible
  deadlock due to a shared workqueue in the delay target, fix to
  initialize read-only module parameters that are used to export metrics
  for dm stats and dm bufio.

  Quite a few stable fixes were identified for both the thin-
  provisioning and caching targets as a result of increased regression
  testing using the device-mapper-test-suite (dmts).  The most notable
  of these are the reference counting fixes for the space map btree that
  is used by the dm-array interface -- without these the dm-cache
  metadata will leak, resulting in dm-cache devices running out of
  metadata blocks.  Also, some important fixes related to the
  thin-provisioning target's transition to read-only mode on error"

* tag 'dm-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm array: fix a reference counting bug in shadow_ablock
  dm space map: disallow decrementing a reference count below zero
  dm stats: initialize read-only module parameter
  dm bufio: initialize read-only module parameters
  dm cache: actually resize cache
  dm cache: update Documentation for invalidate_cblocks's range syntax
  dm cache policy mq: fix promotions to occur as expected
  dm thin: allow pool in read-only mode to transition to read-write mode
  dm thin: re-establish read-only state when switching to fail mode
  dm thin: always fallback the pool mode if commit fails
  dm thin: switch to read-only mode if metadata space is exhausted
  dm thin: switch to read only mode if a mapping insert fails
  dm space map metadata: return on failure in sm_metadata_new_block
  dm table: fail dm_table_create on dm_round_up overflow
  dm snapshot: avoid snapshot space leak on crash
  dm delay: fix a possible deadlock due to shared workqueue
2013-12-13 13:22:22 -08:00
James Solner
3cafea3076 Add Documentation/module-signing.txt file
This patch adds the Documentation/module-signing.txt file that is
currently missing from the Documentation directory. The init/Kconfig
file references the Documentation/module-signing.txt file to explain
how kernel module signing works. This patch supplies this documentation.

Signed-off-by: James Solner <solner@alcatel-lucent.com>
Signed-off-by: David Howells <dhowells@redhat.com>
2013-12-13 15:59:11 +00:00
Linus Torvalds
846f29a6af Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
 "A dvb core deadlock fix, a couple videobuf2 fixes an a series of media
  driver fixes"

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (30 commits)
  [media] videobuf2-dma-sg: fix possible memory leak
  [media] vb2: regression fix: always set length field.
  [media] mt9p031: Include linux/of.h header
  [media] rtl2830: add parent for I2C adapter
  [media] media: marvell-ccic: use devm to release clk
  [media] ths7303: Declare as static a private function
  [media] em28xx-video: Swap release order to avoid lock nesting
  [media] usbtv: Add support for PAL video source
  [media] media_tree: Fix spelling errors
  [media] videobuf2: Add support for file access mode flags for DMABUF exporting
  [media] radio-shark2: Mark shark_resume_leds() inline to kill compiler warning
  [media] radio-shark: Mark shark_resume_leds() inline to kill compiler warning
  [media] af9035: unlock on error in af9035_i2c_master_xfer()
  [media] af9033: fix broken I2C
  [media] v4l: omap3isp: Don't check for missing get_fmt op on remote subdev
  [media] af9035: fix broken I2C and USB I/O
  [media] wm8775: fix broken audio routing
  [media] marvell-ccic: drop resource free in driver remove
  [media] tef6862/radio-tea5764: actually assign clamp result
  [media] cx231xx: use after free on error path in probe
  ...
2013-12-12 11:06:13 -08:00
Linus Torvalds
5dec682c7f Keyrings fixes 2013-12-10
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Merge tag 'keys-devel-20131210' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull misc keyrings fixes from David Howells:
 "These break down into five sets:

   - A patch to error handling in the big_key type for huge payloads.
     If the payload is larger than the "low limit" and the backing store
     allocation fails, then big_key_instantiate() doesn't clear the
     payload pointers in the key, assuming them to have been previously
     cleared - but only one of them is.

     Unfortunately, the garbage collector still calls big_key_destroy()
     when sees one of the pointers with a weird value in it (and not
     NULL) which it then tries to clean up.

   - Three patches to fix the keyring type:

     * A patch to fix the hash function to correctly divide keyrings off
       from keys in the topology of the tree inside the associative
       array.  This is only a problem if searching through nested
       keyrings - and only if the hash function incorrectly puts the a
       keyring outside of the 0 branch of the root node.

     * A patch to fix keyrings' use of the associative array.  The
       __key_link_begin() function initially passes a NULL key pointer
       to assoc_array_insert() on the basis that it's holding a place in
       the tree whilst it does more allocation and stuff.

       This is only a problem when a node contains 16 keys that match at
       that level and we want to add an also matching 17th.  This should
       easily be manufactured with a keyring full of keyrings (without
       chucking any other sort of key into the mix) - except for (a)
       above which makes it on average adding the 65th keyring.

     * A patch to fix searching down through nested keyrings, where any
       keyring in the set has more than 16 keyrings and none of the
       first keyrings we look through has a match (before the tree
       iteration needs to step to a more distal node).

     Test in keyutils test suite:

        http://git.kernel.org/cgit/linux/kernel/git/dhowells/keyutils.git/commit/?id=8b4ae963ed92523aea18dfbb8cab3f4979e13bd1

   - A patch to fix the big_key type's use of a shmem file as its
     backing store causing audit messages and LSM check failures.  This
     is done by setting S_PRIVATE on the file to avoid LSM checks on the
     file (access to the shmem file goes through the keyctl() interface
     and so is gated by the LSM that way).

     This isn't normally a problem if a key is used by the context that
     generated it - and it's currently only used by libkrb5.

     Test in keyutils test suite:

        http://git.kernel.org/cgit/linux/kernel/git/dhowells/keyutils.git/commit/?id=d9a53cbab42c293962f2f78f7190253fc73bd32e

   - A patch to add a generated file to .gitignore.

   - A patch to fix the alignment of the system certificate data such
     that it it works on s390.  As I understand it, on the S390 arch,
     symbols must be 2-byte aligned because loading the address discards
     the least-significant bit"

* tag 'keys-devel-20131210' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  KEYS: correct alignment of system_certificate_list content in assembly file
  Ignore generated file kernel/x509_certificate_list
  security: shmem: implement kernel private shmem inodes
  KEYS: Fix searching of nested keyrings
  KEYS: Fix multiple key add into associative array
  KEYS: Fix the keyring hash function
  KEYS: Pre-clear struct key on allocation
2013-12-12 10:15:24 -08:00
Tony Lindgren
3f823c15d5 net: smc91x: Fix device tree based configuration so it's usable
Commit 89ce376c6b (drivers/net: Use of_match_ptr() macro in smc91x.c)
added minimal device tree support to smc91x, but it's not working on
many platforms because of the lack of some key configuration bits.

Fix the issue by parsing the necessary configuration like the
smc911x driver is doing. As most smc91x users seem to use 16-bit
access, let's default to that if no reg-io-width is specified.

Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: netdev@vger.kernel.org
Cc: devicetree@vger.kernel.org
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-11 16:36:22 -05:00
Mike Snitzer
83f539e1a4 dm cache: update Documentation for invalidate_cblocks's range syntax
The cache target's invalidate_cblocks message allows cache block
(cblock) ranges to be expressed with: <cblock start>-<cblock end>

The range's <cblock end> value is "one past the end", so the range
includes <cblock start> through <cblock end>-1.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
2013-12-10 16:35:15 -05:00
Daniel Borkmann
66e56cd46b packet: fix send path when running with proto == 0
Commit e40526cb20 introduced a cached dev pointer, that gets
hooked into register_prot_hook(), __unregister_prot_hook() to
update the device used for the send path.

We need to fix this up, as otherwise this will not work with
sockets created with protocol = 0, plus with sll_protocol = 0
passed via sockaddr_ll when doing the bind.

So instead, assign the pointer directly. The compiler can inline
these helper functions automagically.

While at it, also assume the cached dev fast-path as likely(),
and document this variant of socket creation as it seems it is
not widely used (seems not even the author of TX_RING was aware
of that in his reference example [1]). Tested with reproducer
from e40526cb20.

 [1] http://wiki.ipxwarzone.com/index.php5?title=Linux_packet_mmap#Example

Fixes: e40526cb20 ("packet: fix use after free race in send path when dev is released")
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Tested-by: Salam Noureddine <noureddine@aristanetworks.com>
Tested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-09 20:09:20 -05:00
Philipp Zabel
c1b96a236e [media] videobuf2: Add support for file access mode flags for DMABUF exporting
Currently it is not possible for userspace to map a DMABUF exported buffer
with write permissions. This patch allows to also pass O_RDONLY/O_RDWR when
exporting the buffer, so that userspace may map it with write permissions.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-09 14:50:50 -02:00
Linus Torvalds
f64001ef16 Char/Misc driver fixes for 3.13-rc3
Nothing huge, just a few small bugfixes for problems reported, and a device id
 update.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Nothing huge, just a few small bugfixes for problems reported, and a
  device id update"

* tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  mei: add 9 series PCH mei device ids
  drivers/char/i8k.c: add Dell XPLS L421X
  MAINTAINERS: add HSI subsystem
  misc: mic: Suppress memory space sparse warnings
  misc: mic: Fix endianness issues.
  misc: mic: Fix user space namespace pollution from mic_common.h.
  misc: mic: Bug fix for sysfs poll usage.
  misc: mic: Minor bug fix in 'retry' loops.
  misc: mic: Change mic_notify(...) to return true.
  extcon: remove freed groups caused the panic or warning in unregister flow
  extcon: arizona: Get pdata from arizona structure not device
2013-12-08 18:47:25 -08:00
Linus Torvalds
24cb412041 - Various DT binding documentation updates.
- Add Kumar Gala and remove Stephen Warren as DT binding maintainers.
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Merge tag 'dt-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:
 - Various DT binding documentation updates
 - Add Kumar Gala and remove Stephen Warren as DT binding maintainers

* tag 'dt-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt: binding: reword PowerPC 8xxx GPIO documentation
  ARM: tegra: delete nvidia,tegra20-spi.txt binding
  hwmon: ntc_thermistor: Fix typo (pullup-uV -> pullup-uv)
  of: add vendor prefix for GMT
  clk: exynos: Fix typos in DT bindings documentation
  of: Add vendor prefix for LG Corporation
  Documentation: net: fsl-fec.txt: Add phy-supply entry
  ARM: dts: doc: Document missing binding for omap5-mpu
  dt-bindings: add ARMv8 PMU binding
  MAINTAINERS: remove swarren from DT bindings
  MAINTAINERS: Add Kumar to Device Tree Binding maintainers group
2013-12-06 08:27:47 -08:00
Tony Lindgren
dd0df47dc3 net: davinci_emac: Fix platform data handling and make usable for am3517
When booted with device tree, we may still have platform data passed
as auxdata. For am3517 this is needed for passing the interrupt_enable
and interrupt_disable callbacks that access the omap system control module
registers. These callback functions will eventually go away when we have
a separate system control module driver.

Some of the things that are currently passed as platform data we don't need
to set up as device tree properties as they are always the same on am3517.
So let's use a new compatible flag for those so we can get those from
the device tree match data.

Also note that we need to fix setting of phy_dev to NULL instead of an empty
string as the code later on uses that to find the first phy on the mdio bus.
This seems to have been caused by 5d69e0076a (net: davinci_emac: switch to
new mdio).

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-05 20:39:36 -05:00
Linus Torvalds
8ecffd7914 GPIO fixes for the v3.13 series:
- Fix compile warnings.
 
 - Fix overly talkative diagnostic messages from usual use
   cases wrt GPIO descriptors.
 
 - Add a documentation 00-INDEX
 
 - Use platform GPIOs as fallback when ACPI or device tree is
   used as the primary means to get GPIO lines.
 
 - A bug fix for the MPC8572/MPC8536 fixing erroneous input data.
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Merge tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Here are a few more GPIO patches, we're a bit noisy for being the GPIO
  subsystem, mostly due to the new descriptor API, but all is getting
  into shape.

   - Fix compile warnings

   - Fix overly talkative diagnostic messages from usual use cases wrt
     GPIO descriptors

   - Add a documentation 00-INDEX

   - Use platform GPIOs as fallback when ACPI or device tree is used as
     the primary means to get GPIO lines

   - A bug fix for the MPC8572/MPC8536 fixing erroneous input data"

* tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpiolib: change a warning to debug message when failing to get gpio
  powerpc/gpio: Fix the wrong GPIO input data on MPC8572/MPC8536
  gpiolib: use platform GPIO mappings as fallback
  Documentation: gpiolib: add 00-INDEX file
  gpiolib: fix lookup of platform-mapped GPIOs
  gpiolib: add missing declarations
2013-12-04 08:59:33 -08:00
Linus Torvalds
36059ee2ba ARM: SoC fixes for 3.13-rc
Another batch of fixes for ARM SoCs for 3.13. The diffstat is large,
 mostly because of:
 
 - Another set of fixes to fix regressions caused by moving OMAP from board
   files to DT. Tony thinks this was the last major set of fixes, with
   maybe just a few small patches to follow.
 - More fixes for Marvell platforms, most dealing with misdescribed PCIe
   hardware, i.e. incorrect number of busses on some SoCs, etc. The line
   delta adds up due to various ranges moving around when this is fixed.
 
 But there's also:
 
 - Some smaller tweaks to defconfigs to make more boards bootable in my
   test setup for better coverage.
 - There are also a few other smaller fixes, a short series for at91, a couple
   of reverts for ux500, etc.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Another batch of fixes for ARM SoCs for 3.13.  The diffstat is large,
  mostly because of:

   - Another set of fixes to fix regressions caused by moving OMAP from
     board files to DT.  Tony thinks this was the last major set of
     fixes, with maybe just a few small patches to follow.
   - More fixes for Marvell platforms, most dealing with misdescribed
     PCIe hardware, i.e.  incorrect number of busses on some SoCs, etc.
     The line delta adds up due to various ranges moving around when
     this is fixed.

  But there's also:

   - Some smaller tweaks to defconfigs to make more boards bootable in
     my test setup for better coverage.
   - There are also a few other smaller fixes, a short series for at91,
     a couple of reverts for ux500, etc"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
  arm: dts: socfpga: Change some clocks of gate-clk type to perip-clk
  arm: socfpga: Enable ARM_TWD for socfpga
  ARM: multi_v7_defconfig: enable SDHCI_BCM_KONA and MMC_BLOCK_MINORS=16
  ARM: sunxi_defconfig: enable NFS, TMPFS, PRINTK_TIME and nfsroot support
  ARM: multi_v7_defconfig: enable network for BeagleBone Black
  ARM: dts: Fix the name of supplies for smsc911x shared by OMAP
  ARM: OMAP2+: Powerdomain: Fix unchecked dereference of arch_pwrdm
  ARM: dts: omap3-beagle: Add omap-twl4030 audio support
  ARM: dts: omap4-sdp: Fix pin muxing for wl12xx
  ARM: dts: omap4-panda-common: Fix pin muxing for wl12xx
  ARM: at91: fixed unresolved symbol "at91_pm_set_standby" when built without CONFIG_PM
  ARM: at91: add usart3 alias to dtsi
  ARM: at91: sama5d3: reduce TWI internal clock frequency
  mmc: omap: Fix I2C dependency and make driver usable with device tree
  mmc: omap: Fix DMA configuration to not rely on device id
  ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13)
  ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi
  ARM: dts: AM33XX IGEP0033: add USB support
  ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support
  ARM: dts: AM33XX BASE0033: add pinmux and user led support
  ...
2013-12-04 08:56:18 -08:00
Olof Johansson
b8be3a2279 Merge tag 'omap-for-v3.13/fixes-against-rc1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:

Some omap related fixes that have come up with people moving to device
tree only based booting for omap2+.

The series contains a handful of fixes for the igep boards as they were
one of the first omap3 boards to jump over completely to device tree
based booting. So these can be considered regressions compared to
booting igep in legacy mode with board files in v3.12.

Also included are few other device tree vs legacy booting regressions:

- yet more missing omap3 .dtsi entries that have showed up booting
  various boards with device tree only

- n900 eMMC device tree fix

- fixes for beagle USB EHCI

- two fixes to make omap2420 MMC work

As we're moving omap2+ to be device tree only for v3.14, I'd like to
have v3.13 work equally well for legacy based booting and device tree
based booting. So there will be likely few more device tree related
booting patches trickling in.

This series also includes a regression fix for the omap timer posted
mode that may wrongly stay on from the bootloader for some SoCs.

* tag 'omap-for-v3.13/fixes-against-rc1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  mmc: omap: Fix I2C dependency and make driver usable with device tree
  mmc: omap: Fix DMA configuration to not rely on device id
  ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13)
  ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi
  ARM: dts: AM33XX IGEP0033: add USB support
  ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support
  ARM: dts: AM33XX BASE0033: add pinmux and user led support
  ARM: dts: AM33XX BASE0033: add pinmux and hdmi node to enable display
  ARM: dts: omap3-igep0020: Add pinmuxing for DVI output
  ARM: dts: omap3-igep0020: Add pinmux setup for i2c devices
  ARM: dts: omap3-igep: Update to use the TI AM/DM37x processor
  ARM: dts: omap3-igep: Add support for LBEE1USJYC WiFi connected to SDIO
  ARM: dts: omap3-igep: Fix bus-width for mmc1
  ARM: OMAP2+: dss-common: change IGEP's DVI DDC i2c bus
  ARM: OMAP2+: Disable POSTED mode for errata i103 and i767
  ARM: OMAP2+: Fix eMMC on n900 with device tree
  ARM: OMAP2+: Add fixed regulator to omap2plus_defconfig
  ARM: OMAP2+: Fix more missing data for omap3.dtsi file

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-03 12:39:08 -08:00
Alexandre Courbot
56a39aac59 Documentation: gpiolib: add 00-INDEX file
Give a short overview of the various GPIO documentation files.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-03 13:10:48 +01:00
Gerhard Sittig
2c0e641a96 dt: binding: reword PowerPC 8xxx GPIO documentation
re-format and re-word the device tree binding documentation for MPC8xxx
and compatibles, reference the common document for interrupt controllers
and remove outdated duplicate SoC specific information

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <Pawel.Moll@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <devicetree@vger.kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Gerhard Sittig <gsi@denx.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-12-03 00:01:03 -06:00
Stephen Warren
72d944ec7e ARM: tegra: delete nvidia,tegra20-spi.txt binding
This binding shouldn't exist; Tegra20 has two forms of SPI controller
that are documented separately in nvidia,tegra20-sflash.txt and
nvidia,tegra20-slink.txt.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-12-03 00:00:33 -06:00
Chanwoo Choi
1675088f8b hwmon: ntc_thermistor: Fix typo (pullup-uV -> pullup-uv)
This patch fix typo of property name from 'pullup-uV' to 'pullup-uv'.
The ntc_thermistor.c use 'pullup-uv' when parsing dt data.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-12-02 23:40:42 -06:00
Wei Ni
dd622d2506 of: add vendor prefix for GMT
Adding Global Mixed-mode Technology Inc. to the list
of devicetree vendor prefixes.

Signed-off-by: Wei Ni <wni@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-12-02 23:37:23 -06:00
Laurent Pinchart
cdbea09819 clk: exynos: Fix typos in DT bindings documentation
s/comptible/compatible/

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-12-02 23:36:50 -06:00
Thierry Reding
53d6b36020 of: Add vendor prefix for LG Corporation
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-12-02 23:35:44 -06:00
Fabio Estevam
21ea026861 Documentation: net: fsl-fec.txt: Add phy-supply entry
phy-supply is an optional property of the fec driver, so add it to the binding
documentation.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-12-02 23:35:35 -06:00
Sricharan R
f1e8e38114 ARM: dts: doc: Document missing binding for omap5-mpu
The binding and support for omap5-mpu which has a cortex-a15
smp core, gic and integrated L2 cache has been existing for sometime.
So Documenting the missing binding here.

Cc: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2013-12-02 23:35:23 -06:00
Rob Herring
f04bda9039 dt-bindings: add ARMv8 PMU binding
Add missing "arm,armv8-pmuv3" compatible property for ARMv8 PMU.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
2013-12-02 23:21:02 -06:00
David Howells
23fd78d764 KEYS: Fix multiple key add into associative array
If sufficient keys (or keyrings) are added into a keyring such that a node in
the associative array's tree overflows (each node has a capacity N, currently
16) and such that all N+1 keys have the same index key segment for that level
of the tree (the level'th nibble of the index key), then assoc_array_insert()
calls ops->diff_objects() to indicate at which bit position the two index keys
vary.

However, __key_link_begin() passes a NULL object to assoc_array_insert() with
the intention of supplying the correct pointer later before we commit the
change.  This means that keyring_diff_objects() is given a NULL pointer as one
of its arguments which it does not expect.  This results in an oops like the
attached.

With the previous patch to fix the keyring hash function, this can be forced
much more easily by creating a keyring and only adding keyrings to it.  Add any
other sort of key and a different insertion path is taken - all 16+1 objects
must want to cluster in the same node slot.

This can be tested by:

	r=`keyctl newring sandbox @s`
	for ((i=0; i<=16; i++)); do keyctl newring ring$i $r; done

This should work fine, but oopses when the 17th keyring is added.

Since ops->diff_objects() is always called with the first pointer pointing to
the object to be inserted (ie. the NULL pointer), we can fix the problem by
changing the to-be-inserted object pointer to point to the index key passed
into assoc_array_insert() instead.

Whilst we're at it, we also switch the arguments so that they are the same as
for ->compare_object().

BUG: unable to handle kernel NULL pointer dereference at 0000000000000088
IP: [<ffffffff81191ee4>] hash_key_type_and_desc+0x18/0xb0
...
RIP: 0010:[<ffffffff81191ee4>] hash_key_type_and_desc+0x18/0xb0
...
Call Trace:
 [<ffffffff81191f9d>] keyring_diff_objects+0x21/0xd2
 [<ffffffff811f09ef>] assoc_array_insert+0x3b6/0x908
 [<ffffffff811929a7>] __key_link_begin+0x78/0xe5
 [<ffffffff81191a2e>] key_create_or_update+0x17d/0x36a
 [<ffffffff81192e0a>] SyS_add_key+0x123/0x183
 [<ffffffff81400ddb>] tracesys+0xdd/0xe2

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Stephen Gallagher <sgallagh@redhat.com>
2013-12-02 11:24:18 +00:00
Linus Torvalds
dda9cc3a14 GPIO fixes for the v3.13 series:
- A big slew of documentation for the gpiod transition that
   happened in the merge window, no semantic effect, but we should
   provide proper documentation with the new API.
 
 - Fix flags related to the new API.
 
 - Fix to the find_chip_by_name() lookup function related to the
   new API.
 
 - Fix of_find_gpio() when not using device tree.
 
 - Bug fix for the TB10x direction setting.
 
 - Error path fixes from Dan Carpenter.
 
 - Nasty IRQdomain bug relating to taking an unitialized spinlock.
 
 - Minor fixes here and there.
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Merge tag 'gpio-v3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Here us a bunch of patches for the v3.13 series.  Most important stuff
  is related to fixes and documentation for the new GPIO descriptor API.
  If the diffstat is scary you'll notice most of it is to
  Documentation/*:

   - A big slew of documentation for the gpiod transition that happened
     in the merge window, no semantic effect, but we should provide
     proper documentation with the new API.

   - Fix flags related to the new API.

   - Fix to the find_chip_by_name() lookup function related to the new
     API.

   - Fix of_find_gpio() when not using device tree.

   - Bug fix for the TB10x direction setting.

   - Error path fixes from Dan Carpenter.

   - Nasty IRQdomain bug relating to taking an unitialized spinlock.

   - Minor fixes here and there"

* tag 'gpio-v3.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: bcm281xx: Fix return value of bcm_kona_gpio_get()
  gpio: pl061: move irqdomain initialization
  gpio: ucb1400: Add MODULE_ALIAS
  gpiolib: fix of_find_gpio() when OF not defined
  gpio: fix memory leak in error path
  gpio: rcar: NULL dereference on error in probe()
  gpio: msm: make msm_gpio.summary_irq signed for error handling
  gpio: mvebu: make mvchip->irqbase signed for error handling
  gpiolib: use dedicated flags for GPIO properties
  gpiolib: fix find_chip_by_name()
  Documentation: gpiolib: document new interface
  gpio: tb10x: Set output value before setting direction to output
2013-11-28 09:57:46 -08:00
Nicolas Dichtel
96d5d9d9e8 doc: fix generation of device-drivers
Since commit 7a6354e241 ("sched: Move wait.c into kernel/sched/"), the
path of this file has changed.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Andy Whitcroft <apw@canonical.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-27 20:40:04 -08:00
Dave Jones
dad337501d remove obsolete references to powertweak
This tool hasn't been maintained in over a decade, and is pretty much
useless these days.  Let's pretend it never happened.

Also remove a long-dead email address.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-27 20:34:32 -08:00
Ashutosh Dixit
173c072787 misc: mic: Fix endianness issues.
Endianness issues are now consistent as per the documentation in
host/mic_virtio.h. Sparse warnings related to endianness are also fixed.
Note that the MIC driver implementation assumes that the host can be
both BE or LE whereas the card is always LE.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Sudeep Dutt <sudeep.dutt@intel.com>
Reviewed-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-27 11:03:38 -08:00
Ashutosh Dixit
1e31aa9270 misc: mic: Fix user space namespace pollution from mic_common.h.
Avoid declaring ALIGN() and __aligned() in
include/uapi/linux/mic_common.h since they pollute user space
namespace. Also, mic_aligned_size() can be simply replaced simply by
sizeof() since all structures where mic_aligned_size() is used are
declared using __attribute__ ((aligned(8)));

--
>From mail from H Peter Anvin about this:

On Fri, Nov 08, 2013 H Peter Anvin <h.peter.anvin@intel.com> wrote:
Subject: Namespace pollution in mic_common.h

This puts two macros, ALIGN() and __aligned(), into arbitrary user space
namespace.  This really isn't safe or acceptable, especially since those
symbols are highly generic.
...
When these structures are forced-aligned, they will in fact have padding
automatically added by the compiler to an 8-byte boundary anyway, so
mic_aligned_size() does nothing.
...

Reported-by: H Peter Anvin <h.peter.anvin@intel.com>
Reviewed-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-27 11:03:38 -08:00
Ashutosh Dixit
286c24028c misc: mic: Bug fix for sysfs poll usage.
MIC user space daemon poll's on sysfs changes. The documentation for
sysfs_poll(...) in fs/sysfs/file.c states that "Once poll/select
indicates that the value has changed, you need to close and re-open the
file, or seek to 0 and read again". This step was missed out earlier and
resulted in the daemon spinning continuously rather than getting blocked
in 'poll'. This bug was exposed by commit aea585ef8f introduced as
part of sysfs changes in 3.13-rc1. A seek to 0 has been introduced to
fix it.

Reviewed-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-27 11:03:38 -08:00
Tony Lindgren
9cb238c00b mmc: omap: Fix I2C dependency and make driver usable with device tree
Some features can be configured by the companion I2C chips,
which may not be available at the probe time. Fix the issue
by returning -EPROBE_DEFER when the MMC controller slots
are not configured.

While at it, let's also add minimal device tree support so
omap24xx platforms can use this driver without legacy mode
since we claim to support device tree for mach-omap2 based
systems.

Although adding the minimal device tree support is not strictly
a fix, it does remove one of the last blockers for dropping a
bunch of legacy platform data for mach-omap2.

Cc: linux-mmc@vger.kernel.org
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-11-26 15:51:16 -08:00
Linus Torvalds
0e4b0743bb ARM: SoC fixes for 3.13-rc
Mostly bugfixes and a few small code removals. Worth pointing out is:
 
 - A handful of more fixes to get DT enablement working properly on OMAP,
   finding new breakage of things that don't work quite right yet without
   the traditional board files. I expect a bit more of this to come in this
   release as people test on their hardware.
 - Implementation of power_down_finish() on vexpress, to make kexec work and
   to stop the MCPM core to produce a warning (the warning was new to 3.13-rc1).
 - A handful of minor fixes for various platforms.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Mostly bugfixes and a few small code removals.  Worth pointing out is:

   - A handful of more fixes to get DT enablement working properly on
     OMAP, finding new breakage of things that don't work quite right
     yet without the traditional board files.  I expect a bit more of
     this to come in this release as people test on their hardware.
   - Implementation of power_down_finish() on vexpress, to make kexec
     work and to stop the MCPM core to produce a warning (the warning
     was new to 3.13-rc1).
   - A handful of minor fixes for various platforms"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: bcm2835: add missing #xxx-cells to I2C nodes
  ARM: dts: Add max77686 RTC interrupt to cros5250-common
  ARM: vexpress/TC2: Implement MCPM power_down_finish()
  ARM: tegra: Provide dummy powergate implementation
  ARM: omap: fix warning with LPAE build
  ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
  ARM: OMAP2+: Remove legacy mux code for display.c
  ARM: OMAP2+: Fix undefined reference to set_cntfreq
  gpio: twl4030: Fix passing of pdata in the device tree case
  gpio: twl4030: Fix regression for twl gpio output
  ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
  ARM: dts: imx6qdl: disable spdif "rxtx5" clock option
  ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
  ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
  i2c: omap: Fix missing device tree flags for omap2
2013-11-26 11:18:37 -08:00
Olof Johansson
5c1f34c42d Merge tag 'omap-for-v3.13/more-fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
Few more fixes for issues found booting older omaps using device tree.
Also few randconfig build fixes and removal of some dead code for omap4
as it no longer has legacy platform data based booting support.

* tag 'omap-for-v3.13/more-fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
  ARM: OMAP2+: Remove legacy mux code for display.c
  ARM: OMAP2+: Fix undefined reference to set_cntfreq
  gpio: twl4030: Fix passing of pdata in the device tree case
  gpio: twl4030: Fix regression for twl gpio output
  ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
  ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
  ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
  i2c: omap: Fix missing device tree flags for omap2
2013-11-25 13:34:49 -08:00
Alexandre Courbot
fd8e198cfc Documentation: gpiolib: document new interface
gpiolib now exports a new descriptor-based interface which deprecates
the older integer-based one. This patch documents this new interface and
also takes the opportunity to brush-up the GPIO documentation a little
bit.

The new descriptor-based interface follows the same consumer/driver
model as many other kernel subsystems (e.g. clock, regulator), so its
documentation has similarly been splitted into different files.

The content of the former documentation has been reused whenever it
made sense; however, some of its content did not apply to the new
interface anymore and have this been removed. Likewise, new sections
like the mapping of GPIOs to devices have been written from scratch.

The deprecated legacy-based documentation is still available, untouched,
under Documentation/gpio/gpio-legacy.txt.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-11-25 09:02:30 +01:00
Linus Torvalds
26b265cd29 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 - Made x86 ablk_helper generic for ARM
 - Phase out chainiv in favour of eseqiv (affects IPsec)
 - Fixed aes-cbc IV corruption on s390
 - Added constant-time crypto_memneq which replaces memcmp
 - Fixed aes-ctr in omap-aes
 - Added OMAP3 ROM RNG support
 - Add PRNG support for MSM SoC's
 - Add and use Job Ring API in caam
 - Misc fixes

[ NOTE! This pull request was sent within the merge window, but Herbert
  has some questionable email sending setup that makes him public enemy
  #1 as far as gmail is concerned.  So most of his emails seem to be
  trapped by gmail as spam, resulting in me not seeing them.  - Linus ]

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (49 commits)
  crypto: s390 - Fix aes-cbc IV corruption
  crypto: omap-aes - Fix CTR mode counter length
  crypto: omap-sham - Add missing modalias
  padata: make the sequence counter an atomic_t
  crypto: caam - Modify the interface layers to use JR API's
  crypto: caam - Add API's to allocate/free Job Rings
  crypto: caam - Add Platform driver for Job Ring
  hwrng: msm - Add PRNG support for MSM SoC's
  ARM: DT: msm: Add Qualcomm's PRNG driver binding document
  crypto: skcipher - Use eseqiv even on UP machines
  crypto: talitos - Simplify key parsing
  crypto: picoxcell - Simplify and harden key parsing
  crypto: ixp4xx - Simplify and harden key parsing
  crypto: authencesn - Simplify key parsing
  crypto: authenc - Export key parsing helper function
  crypto: mv_cesa: remove deprecated IRQF_DISABLED
  hwrng: OMAP3 ROM Random Number Generator support
  crypto: sha256_ssse3 - also test for BMI2
  crypto: mv_cesa - Remove redundant of_match_ptr
  crypto: sahara - Remove redundant of_match_ptr
  ...
2013-11-23 16:18:25 -08:00
Linus Torvalds
b0e3636f65 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
 "Things have been quiet this round with mostly bugfixes, percpu
  conversions, and other minor iscsi-target conformance testing changes.

  The highlights include:

   - Add demo_mode_discovery attribute for iscsi-target (Thomas)
   - Convert tcm_fc(FCoE) to use percpu-ida pre-allocation
   - Add send completion interrupt coalescing for ib_isert
   - Convert target-core to use percpu-refcounting for se_lun
   - Fix mutex_trylock usage bug in iscsit_increment_maxcmdsn
   - tcm_loop updates (Hannes)
   - target-core ALUA cleanups + prep for v3.14 SCSI Referrals support (Hannes)

  v3.14 is currently shaping to be a busy development cycle in target
  land, with initial support for T10 Referrals and T10 DIF currently on
  the roadmap"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (40 commits)
  iscsi-target: chap auth shouldn't match username with trailing garbage
  iscsi-target: fix extract_param to handle buffer length corner case
  iscsi-target: Expose default_erl as TPG attribute
  target_core_configfs: split up ALUA supported states
  target_core_alua: Make supported states configurable
  target_core_alua: Store supported ALUA states
  target_core_alua: Rename ALUA_ACCESS_STATE_OPTIMIZED
  target_core_alua: spellcheck
  target core: rename (ex,im)plict -> (ex,im)plicit
  percpu-refcount: Add percpu-refcount.o to obj-y
  iscsi-target: Do not reject non-immediate CmdSNs exceeding MaxCmdSN
  iscsi-target: Convert iscsi_session statistics to atomic_long_t
  target: Convert se_device statistics to atomic_long_t
  target: Fix delayed Task Aborted Status (TAS) handling bug
  iscsi-target: Reject unsupported multi PDU text command sequence
  ib_isert: Avoid duplicate iscsit_increment_maxcmdsn call
  iscsi-target: Fix mutex_trylock usage in iscsit_increment_maxcmdsn
  target: Core does not need blkdev.h
  target: Pass through I/O topology for block backstores
  iser-target: Avoid using FRMR for single dma entry requests
  ...
2013-11-22 10:52:03 -08:00
Linus Torvalds
0032cdefff hwmon updates for 3.13-rc1 [#2]
acpi_power_meter: Fix return value check from call to acpi_bus_get_device
 nct6775: Fix/improve NCT6791 support
 lm75: Add support for GMT G751
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Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 - acpi_power_meter: Fix return value check from call to
   acpi_bus_get_device
 - nct6775: Fix/improve NCT6791 support
 - lm75: Add support for GMT G751

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (acpi_power_meter) Fix acpi_bus_get_device() return value check
  hwmon: (nct6775) NCT6791 supports weight control only for CPUFAN
  hwmon: (nct6775) Monitor additional temperature registers
  hwmon: (lm75) Add support for GMT G751 chip
2013-11-22 10:49:14 -08:00
Linus Torvalds
fb0d1eb892 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "Almost all of these are bug fixes.  Dave Sterba's documentation update
  is the big exception because he removed our promises to set any
  machine running Btrfs on fire"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Documentation: filesystems: update btrfs tools section
  Documentation: filesystems: add new btrfs mount options
  btrfs: update kconfig help text
  btrfs: fix bio_size_ok() for max_sectors > 0xffff
  btrfs: Use trace condition for get_extent tracepoint
  btrfs: fix typo in the log message
  Btrfs: fix list delete warning when removing ordered root from the list
  Btrfs: print bytenr instead of page pointer in check-int
  Btrfs: remove dead codes from ctree.h
  Btrfs: don't wait for ordered data outside desired range
  Btrfs: fix lockdep error in async commit
  Btrfs: avoid heavy operations in btrfs_commit_super
  Btrfs: fix __btrfs_start_workers retval
  Btrfs: disable online raid-repair on ro mounts
  Btrfs: do not inc uncorrectable_errors counter on ro scrubs
  Btrfs: only drop modified extents if we logged the whole inode
  Btrfs: make sure to copy everything if we rename
  Btrfs: don't BUG_ON() if we get an error walking backrefs
2013-11-22 08:38:55 -08:00