Commit graph

506,942 commits

Author SHA1 Message Date
Steffen Klassert
b3b2b9e192 ipsec: Don't update the pmtu on ICMPV6_DEST_UNREACH
Currently we update the pmtu in the IPsec protocol error handlers
if icmpv6 message type is either ICMPV6_DEST_UNREACH or
ICMPV6_PKT_TOOBIG. Updating the pmtu on ICMPV6_DEST_UNREACH
is wrong in any case, it causes strangely fragmented packets.
Only ICMPV6_PKT_TOOBIG signalizes pmtu discovery, so remove the
ICMPV6_DEST_UNREACH check in the IPsec protocol error handlers.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2013-09-16 09:45:32 +02:00
Steffen Klassert
bafd4bd4dc xfrm: Decode sessions with output interface.
The output interface matching does not work on forward
policy lookups, the output interface of the flowi is
always 0. Fix this by setting the output interface when
we decode the session.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2013-09-16 09:39:43 +02:00
Steffen Klassert
4479ff76c4 xfrm: Fix replay size checking on async events
We pass the wrong netlink attribute to xfrm_replay_verify_len().
It should be XFRMA_REPLAY_ESN_VAL and not XFRMA_REPLAY_VAL as
we currently doing. This causes memory corruptions if the
replay esn attribute has incorrect length. Fix this by passing
the right attribute to xfrm_replay_verify_len().

Reported-by: Michael Rossberg <michael.rossberg@tu-ilmenau.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2013-09-16 09:39:37 +02:00
Wei Yang
73a695f857 cxgb4: remove workqueue when driver registration fails
When driver registration fails, we need to clean up the resources allocated
before. cxgb4 missed to destroy the workqueue allocated at the very beginning.

This patch destroies the workqueue when registration fails.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:28:58 -04:00
Antonio Alecrim Jr
d6d6d1bc44 isdn: hfcpci_softirq: get func return to suppress compiler warning
Signed-off-by: Antonio Alecrim Jr <antonio.alecrim@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:27:04 -04:00
Neil Horman
7eacd03810 bonding: Make alb learning packet interval configurable
running bonding in ALB mode requires that learning packets be sent periodically,
so that the switch knows where to send responding traffic.  However, depending
on switch configuration, there may not be any need to send traffic at the
default rate of 3 packets per second, which represents little more than wasted
data.  Allow the ALB learning packet interval to be made configurable via sysfs

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Acked-by: Veaceslav Falico <vfalico@redhat.com>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:20:44 -04:00
Andy Shevchenko
d2bb3905ab atm: nicstar: fix regression made by previous patch
The commit 8390f814 "atm: nicstar: re-use native mac_pton() helper" did a
usefull thing. However, mac_pton() returns 1 in the case of the successfully
parsed input. This patch fixes a typo.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:18:55 -04:00
Joseph Gasparakis
35e4237973 vxlan: Fix sparse warnings
This patch fixes sparse warnings when incorrectly handling the port number
and using int instead of unsigned int iterating through &vn->sock_list[].
Keeping the port as __be16 also makes things clearer wrt endianess.
Also, it was pointed out that vxlan_get_rx_port() had unnecessary checks
which got removed.

Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:18:13 -04:00
Manish Chopra
5c44bbdab5 qlcnic: Fix VF reset recovery
o At the time of firmware hang "adapter->need_fw_reset" variable gets
  set but after re-initialization of firmware OR at the time of VF
  re-initialization that variable was not getting cleared which
  was leading to failure in VF reset recovery.Fix it by clearing
  this variable before re-initializing VF

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:10:57 -04:00
Hong Zhiguo
716ec052d2 bridge: fix NULL pointer deref of br_port_get_rcu
The NULL deref happens when br_handle_frame is called between these
2 lines of del_nbp:
	dev->priv_flags &= ~IFF_BRIDGE_PORT;
	/* --> br_handle_frame is called at this time */
	netdev_rx_handler_unregister(dev);

In br_handle_frame the return of br_port_get_rcu(dev) is dereferenced
without check but br_port_get_rcu(dev) returns NULL if:
	!(dev->priv_flags & IFF_BRIDGE_PORT)

Eric Dumazet pointed out the testing of IFF_BRIDGE_PORT is not necessary
here since we're in rcu_read_lock and we have synchronize_net() in
netdev_rx_handler_unregister. So remove the testing of IFF_BRIDGE_PORT
and by the previous patch, make sure br_port_get_rcu is called in
bridging code.

Signed-off-by: Hong Zhiguo <zhiguohong@tencent.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:03:33 -04:00
Hong Zhiguo
1fb1754a8c bridge: use br_port_get_rtnl within rtnl lock
current br_port_get_rcu is problematic in bridging path
(NULL deref). Change these calls in netlink path first.

Signed-off-by: Hong Zhiguo <zhiguohong@tencent.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:03:33 -04:00
Michael Opdenacker
3274f68752 net: ps3_gelic: remove deprecated IRQF_DISABLED
This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/toshiba/ps3_gelic_net.c

It's a NOOP since 2.6.35 and I will remove it one day ;)

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:01:06 -04:00
Michael Opdenacker
cf68ca1e4f net: smsc: remove deprecated IRQF_DISABLED
This patch proposes to remove the IRQF_DISABLED flag from
code in drivers/net/ethernet/smsc/

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:01:06 -04:00
Michael Opdenacker
7887427193 net: pasemi: remove deprecated IRQF_DISABLED
This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/pasemi/pasemi_mac.c

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:01:06 -04:00
Michael Opdenacker
d8865d5bb9 net: natsemi: remove deprecated IRQF_DISABLED
This patch proposes to remove the IRQF_DISABLED flag from
code in drivers/net/ethernet/natsemi/

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:01:06 -04:00
Michael Opdenacker
cfb9a514bc net: ks8851-ml: remove deprecated IRQF_DISABLED
This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/micrel/ks8851_mll.c

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:01:05 -04:00
Michael Opdenacker
599c2e1f22 net: pxa168_eth: remove deprecated IRQF_DISABLED
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:01:05 -04:00
Michael Opdenacker
dddb29e427 net: lantiq_etop: remove deprecated IRQF_DISABLED
This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/lantiq_etop.c

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:01:05 -04:00
Michael Opdenacker
c023e28bf6 net: hp100: remove deprecated IRQF_DISABLED
This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/hp/hp100.c

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:01:05 -04:00
Michael Opdenacker
44a272ddfd net: fec: remove deprecated IRQF_DISABLED
This patch proposes to remove the IRQF_DISABLED flag from
drivers/net/ethernet/freescale/fec_main.c

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-15 22:01:05 -04:00
Dave Airlie
d52271290a Merge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
A few more radeon fixes.  A fix for UVD on AGP cards, a fix for non-full
screen scaling on laptop panels with DP bridge chips, and a bunch of dpm
fixes.

* 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: avoid UVD corruptions on AGP cards
  drm/radeon: fix panel scaling with eDP and LVDS bridges
  drm/radeon/dpm: rework auto performance level enable
  drm/radeon: Fix hmdi typo
  drm/radeon/dpm/rs780: fix force_performance state for same sclks
  drm/radeon/dpm/rs780: don't enable sclk scaling if not required
  drm/radeon/dpm/rs780: add some sanity checking to sclk scaling
  drm/radeon/dpm/rs780: use drm_mode_vrefresh()
2013-09-16 11:36:19 +10:00
Christian König
4f66c59922 drm/radeon: avoid UVD corruptions on AGP cards
Putting everything into VRAM seems to help.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-09-15 20:27:54 -04:00
Alex Deucher
855f5f1d88 drm/radeon: fix panel scaling with eDP and LVDS bridges
We were using the wrong set_properly callback so we always
ended up with Full scaling even if something else (Center or
Full aspect) was selected.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2013-09-15 20:27:53 -04:00
Alex Deucher
1cd8b21aa2 drm/radeon/dpm: rework auto performance level enable
Calling force_performance_level() from set_power_state()
doesn't work on some asics because the current power
state pointer has not been properly updated at that point.
Move the calls to force_performance_level() out of the
asic specific set_power_state() functions and into
the main power state sequence.

Fixes dpm resume on SI.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-15 20:27:52 -04:00
Damien Lespiau
d592fca940 drm/radeon: Fix hmdi typo
I keep making that one, so checked if I was the only one. Apparently
not.

Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2013-09-15 20:27:51 -04:00
Alex Deucher
c2ee29d002 drm/radeon/dpm/rs780: fix force_performance state for same sclks
If the low and high sclks within a power state are the same,
there no need to enable sclk scaling.  Enabling sclk scaling
can cause display stability issues on some boards.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-09-15 20:27:51 -04:00
Alex Deucher
e40210cca9 drm/radeon/dpm/rs780: don't enable sclk scaling if not required
If the low and high sclks are the same, there is no need to
enable sclk scaling.  This causes display stability issues on
certain boards.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60857

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-09-15 20:27:50 -04:00
Alex Deucher
ce7b30e025 drm/radeon/dpm/rs780: add some sanity checking to sclk scaling
Since the clock scaling is based on fb divider adjustments,
make sure the other pll parameters are the same.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-09-15 20:27:49 -04:00
Alex Deucher
c3eaa08827 drm/radeon/dpm/rs780: use drm_mode_vrefresh()
Rather than open coding it.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2013-09-15 20:27:48 -04:00
Daniel Vetter
d2aebe338a drm/udl: rip out set_need_resched
This very much looks like copypasta from drm/i915's fault handler.
It was used there to duct-tape over issues around gpu reset handling.

Since that can't ever happen for udl and there's seemingly no other
reason for this just drop it.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-09-16 08:35:04 +10:00
Dave Airlie
42e169be3e Merge branch 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Radeon drm fixes for 3.12.  All over the place (display, dpm, uvd, etc.).
Also adds a couple more berlin pci ids.

* 'drm-fixes-3.12' of git://people.freedesktop.org/~agd5f/linux: (25 commits)
  drm/radeon/dpm: add bapm callback for kb/kv
  drm/radeon/dpm: add bapm callback for trinity
  drm/radeon/dpm: add infrastructure to properly handle bapm
  drm/radeon/dpm: handle bapm on kb/kv
  drm/radeon/dpm: handle bapm on trinity
  drm/radeon: expose DPM thermal thresholds through sysfs
  drm/radeon: simplify driver data retrieval
  drm/radeon/atom: workaround vbios bug in transmitter table on rs880 (v2)
  drm/radeon/dpm: fix fallback for empty UVD clocks
  drm/radeon: add command submission tracepoint
  drm/radeon: remove stale radeon_fence_retire tracepoint
  drm/radeon/r6xx: add a stubbed out set_uvd_clocks callback
  drm/radeon: fix typo in PG flags
  drm/radeon: add some additional berlin pci ids
  drm/radeon/cik: update gpu_init for an additional berlin gpu
  drm/radeon: add spinlocks for indirect register accesss
  drm/radeon: protect concurrent smc register access with a spinlock
  drm/radeon: dpm updates for KV
  drm/radeon: signedness bug in kv_dpm.c
  drm/radeon: clean up r600_free_extended_power_table()
  ...
2013-09-16 08:31:52 +10:00
Linus Torvalds
d8efd82eec Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "These are four patches for three construction sites:

   - Fix register decoding for the combination of multi-core processors
     and multi-threading.

   - Two more fixes that are part of the ongoing DECstation resurrection
     work.  One of these touches a DECstation-only network driver.

   - Finally Markos' trivial build fix for the AP/SP support.

  (With this applied now all MIPS defconfigs are building again)"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: kernel: vpe: Make vpe_attrs an array of pointers.
  MIPS: Fix SMP core calculations when using MT support.
  MIPS: DECstation I/O ASIC DMA interrupt handling fix
  MIPS: DECstation HRT initialization rearrangement
2013-09-15 17:45:52 -04:00
Linus Torvalds
cd619e21ea Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Pull x86 platform updates from Matthew Garrett:
 "Nothing amazing here, almost entirely cleanups and minor bugfixes and
  one bit of hardware enablement in the amilo-rfkill driver"

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
  platform/x86: panasonic-laptop: reuse module_acpi_driver
  samsung-laptop: fix config build error
  platform: x86: remove unnecessary platform_set_drvdata()
  amilo-rfkill: Enable using amilo-rfkill with the FSC Amilo L1310.
  wmi: parse_wdg() should return kernel error codes
  hp_wmi: Fix unregister order in hp_wmi_rfkill_setup()
  platform: replace strict_strto*() with kstrto*()
  x86: irst: use module_acpi_driver to simplify the code
  x86: smartconnect: use module_acpi_driver to simplify the code
  platform samsung-q10: use ACPI instead of direct EC calls
  thinkpad_acpi: add the ability setting TPACPI_LED_NONE by quirk
  thinkpad_acpi: return -NODEV while operating uninitialized LEDs
2013-09-15 17:42:59 -04:00
Linus Torvalds
0375ec5899 SCSI misc on 20130915
This patch set is a set of driver updates (megaraid_sas, fnic, lpfc, ufs,
 hpsa) we also have a couple of bug fixes (sd out of bounds and ibmvfc error
 handling) and the first round of esas2r checker fixes and finally the much
 anticipated big endian additions for megaraid_sas.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull misc SCSI driver updates from James Bottomley:
 "This patch set is a set of driver updates (megaraid_sas, fnic, lpfc,
  ufs, hpsa) we also have a couple of bug fixes (sd out of bounds and
  ibmvfc error handling) and the first round of esas2r checker fixes and
  finally the much anticipated big endian additions for megaraid_sas"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (47 commits)
  [SCSI] fnic: fnic Driver Tuneables Exposed through CLI
  [SCSI] fnic: Kernel panic while running sh/nosh with max lun cfg
  [SCSI] fnic: Hitting BUG_ON(io_req->abts_done) in fnic_rport_exch_reset
  [SCSI] fnic: Remove QUEUE_FULL handling code
  [SCSI] fnic: On system with >1.1TB RAM, VIC fails multipath after boot up
  [SCSI] fnic: FC stat param seconds_since_last_reset not getting updated
  [SCSI] sd: Fix potential out-of-bounds access
  [SCSI] lpfc 8.3.42: Update lpfc version to driver version 8.3.42
  [SCSI] lpfc 8.3.42: Fixed issue of task management commands having a fixed timeout
  [SCSI] lpfc 8.3.42: Fixed inconsistent spin lock usage.
  [SCSI] lpfc 8.3.42: Fix driver's abort loop functionality to skip IOs already getting aborted
  [SCSI] lpfc 8.3.42: Fixed failure to allocate SCSI buffer on PPC64 platform for SLI4 devices
  [SCSI] lpfc 8.3.42: Fix WARN_ON when driver unloads
  [SCSI] lpfc 8.3.42: Avoided making pci bar ioremap call during dual-chute WQ/RQ pci bar selection
  [SCSI] lpfc 8.3.42: Fixed driver iocbq structure's iocb_flag field running out of space
  [SCSI] lpfc 8.3.42: Fix crash on driver load due to cpu affinity logic
  [SCSI] lpfc 8.3.42: Fixed logging format of setting driver sysfs attributes hard to interpret
  [SCSI] lpfc 8.3.42: Fixed back to back RSCNs discovery failure.
  [SCSI] lpfc 8.3.42: Fixed race condition between BSG I/O dispatch and timeout handling
  [SCSI] lpfc 8.3.42: Fixed function mode field defined too small for not recognizing dual-chute mode
  ...
2013-09-15 17:41:30 -04:00
Lars-Peter Clausen
2432e1aeec staging:iio: Remove unnecessary casts for iio_push_to_buffers()
Now that iio_push_to_buffers() takes a void pointer for the data parameter we
can remove those casts to u8*.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15 19:05:51 +01:00
Lars-Peter Clausen
8c60c7e75d iio: Remove unnecessary casts for iio_push_to_buffers()
Now that iio_push_to_buffers() takes a void pointer for the data parameter we
can remove those casts to u8*.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15 19:05:07 +01:00
Lars-Peter Clausen
5d65d92045 iio: iio_push_to_buffers(): Change type of 'data' to const void *
Change the type of the 'data' parameter for iio_push_to_buffers() from 'u8 *' to
'const void *'. Drivers typically use the correct type (e.g. __be16 *) for their
data buffer. When passing the buffer to iio_push_to_buffers() it needs to be
cast to 'u8 *' for the compiler to not complain (and also having to add __force
if we want to keep sparse happy as well). Since the buffer implementation should
not care about the data layout (except the size of one sample) using a void
pointer is the correct thing to do. Also make it const as the buffer
implementations are not supposed to modify it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15 19:02:07 +01:00
Lars-Peter Clausen
c7a22c3680 iio:buffer_cb: Constify iio_cb_access
The iio_cb_access struct is never modified so we can mark it as const.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15 18:58:26 +01:00
Peter Meerwald
6a2f39b78b iio: Fix tcs3472 buffer size
and drop obsolete #define

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15 17:53:56 +01:00
Jonathan Cameron
da1690e6ca iio:temperature:tmp006 put sampling_frequency in info_mask_shared_by_all
Doing this makes it possible to access this control from within the kernel.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Peter Meerwald <pmeerw@pmeerw.net>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2013-09-15 17:47:38 +01:00
Jonathan Cameron
6a63aa0a09 staging:iio: dummy driver additions to show shared_by_dir infomask usage
Note that as this driver has output as well as output channels an
example of info_mask_shared_by_all that makes any sense does not exist.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2013-09-15 17:46:33 +01:00
Jonathan Cameron
c006ec8384 iio: add info_mask_[shared_by_dir/shared_by_all]
These two additional info_mask bitmaps should allow all 'standard'
numeric attributes to be handled using the read_raw and write_raw
callbacks.  Whilst this should reduce code, the more important element
is that this makes these values easily accessible to in kernel users
of IIO devices.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2013-09-15 17:45:49 +01:00
Jonathan Cameron
3704432fb1 iio: refactor info mask and ext_info attribute creation.
Introduce an enum to specify whether the attribute is separate or
shared.

Factor out the bitmap handling for loop into a separate function.

Tidy up error handling and add a NULL assignment to squish a false
positive warning from GCC.

Change ext_info shared type from boolean to enum and update in all
drivers.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2013-09-15 17:43:20 +01:00
Jonathan Cameron
9761696f2b iio: drop info_mask from struct iio_dev
Somehow this got missed when dropping all the code that used it
prior to the split.  Remove it now, there are no users.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2013-09-15 17:41:21 +01:00
Lars-Peter Clausen
623c334c1a iio:kfifo_buf: Use wake_up_interruptible_poll()
Use wake_up_interruptible_poll() instead of wake_up_interruptible() to only wake
up those threads that listen for input poll notifications.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15 17:39:04 +01:00
Lars-Peter Clausen
705ee2c98a iio:buffer: Simplify iio_buffer_is_active()
We can skip having to loop through all the device's buffers to see if a certain
buffer is active, if we let the buffer's list head point to itself when the
buffer is inactive.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15 17:35:31 +01:00
Yann Droneaud
a646fbf0fd iio: use anon_inode_getfd() with O_CLOEXEC flag
IIO uses anon_inode_get() to allocate file descriptors as part
of its ioctls. But those ioctls are lacking a flag argument
allowing userspace to choose options for the newly opened file
descriptor.

In such case it's advised to use O_CLOEXEC by default so that
userspace is allowed to choose, without race, if the file descriptor
is going to be inherited across exec().

KVM usage of anon_inode_getfd() was fixed in a previous patchset [1],
so IIO is the only subsystem using anon_inode_getfd() with a fixed set
of flags not including O_CLOEXEC.

This patch set O_CLOEXEC flag on the event file descriptor created
with anon_inode_getfd() to not leak file descriptors across exec().

Links:

- Secure File Descriptor Handling (Ulrich Drepper, 2008)
  http://udrepper.livejournal.com/20407.html

- Excuse me son, but your code is leaking !!! (Dan Walsh, March 2012)
  http://danwalsh.livejournal.com/53603.html

- [1] kvm: use anon_inode_getfd() with O_CLOEXEC flag
  http://lkml.kernel.org/r/cover.1377372576.git.ydroneaud@opteya.com

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15 17:27:15 +01:00
Linus Torvalds
bff157b3ad Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
Pull SLAB update from Pekka Enberg:
 "Nothing terribly exciting here apart from Christoph's kmalloc
  unification patches that brings sl[aou]b implementations closer to
  each other"

* 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  slab: Use correct GFP_DMA constant
  slub: remove verify_mem_not_deleted()
  mm/sl[aou]b: Move kmallocXXX functions to common code
  mm, slab_common: add 'unlikely' to size check of kmalloc_slab()
  mm/slub.c: beautify code for removing redundancy 'break' statement.
  slub: Remove unnecessary page NULL check
  slub: don't use cpu partial pages on UP
  mm/slub: beautify code for 80 column limitation and tab alignment
  mm/slub: remove 'per_cpu' which is useless variable
2013-09-15 07:15:06 -04:00
Linus Torvalds
8bf5e36d04 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input update from Dmitry Torokhov:
 "The only change is David Hermann's new EVIOCREVOKE evdev ioctl that
  allows safely passing file descriptors to input devices to session
  processes and later being able to stop delivery of events through
  these fds so that inactive sessions will no longer receive user input
  that does not belong to them"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: evdev - add EVIOCREVOKE ioctl
2013-09-15 07:13:39 -04:00
Linus Torvalds
05a8252bde vfs: fix typo in comment in recent dentry work
Sedat points out that I transposed some letters in "LRU" and wrote "RLU"
instead in one of the new comments explaining the flow.  Let's just fix
it.

Reported-by: Sedat Dilek <sedat.dilek@jpberlin.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-15 07:11:01 -04:00