Commit graph

691,473 commits

Author SHA1 Message Date
David S. Miller
8c7314c65a Merge branch 'qmap-mux'
Daniele Palmas says:

====================
net: usb: qmi_wwan: add qmap mux protocol support

This patch adds support for qmap mux protocol available in recent
Qualcomm based modems.

The qmap mux protocol can be used for multiplexing data packets in
order to have multiple ip streams through the same physical device.

Two new sysfs files are added for adding/removing the qmap mux based
interfaces (named qmimux):

/sys/class/net/<iface>/qmi/add_mux
/sys/class/net/<iface>/qmi/del_mux

Main patch author is Bjørn Mork <bjorn@mork.no>

An userspace implementation of the qmi requests needed to support
multiple ip streams is already available (namely libqmi since
version 1.18.0).

The qmap mux feature has been recently implemented in Codeaurora
gobinet out-of-kernel driver that was the inspiration for this
development.

Tests have been performed with Telit LE922A6 (PID 0x1040)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-25 20:03:35 -07:00
Daniele Palmas
416906fc28 Documentation: ABI: testing: sysfs-class-net-qmi: add new qmap mux files description
This patch updates the documentation related to the new files added for
qmap mux support.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-25 20:03:35 -07:00
Daniele Palmas
c6adf77953 net: usb: qmi_wwan: add qmap mux protocol support
This patch adds support for qmap mux protocol available in recent
Qualcomm based modems.

The qmap mux protocol can be used for multiplexing data packets in
order to have multiple ip streams through the same physical device.

Two new sysfs files are added for adding/removing the qmap mux based
interfaces (named qmimux):

- /sys/class/net/<iface>/qmi/add_mux
- /sys/class/net/<iface>/qmi/del_mux

Main patch author is Bjørn Mork <bjorn@mork.no>

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-25 20:03:35 -07:00
Arkadi Sharshevsky
1312444374 mlxsw: spectrum_kvdl: Cosmetic kvdl allocator API change
Currently the return allocated index and err value are multiplexed.
This patch changes the API to decouple the ret value from the allocated
index.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-25 19:56:15 -07:00
Linus Torvalds
a643f9054c A code cleanup and bugfix for fs/crypto.
-----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAljW4wYACgkQ8vlZVpUN
 gaPYugf9ExFbJhN+iYqUVbGXPvlr5VpEtDeVt7IfO3a37hqCEQ0IEPzksNIfUFul
 B8/rYXpz0B5gqCJeo66CGLkb1SVvSoSKCq9/BTQtugohxM7sGxDFTmdB+A+u0QJH
 leILfaMFuj0DhVOrdYVpGh7e1XPgSTUWy6/G42OJqf3SV2WxGRJtyBfmghZxEdiY
 XYCGqjq47yOIPvzB+ufKe1hnphKMgxlHeuPvByzPCvOs58GlxAYR3Ycuvjc/nz+8
 QVlAEPpGhf9ytEXELsxq/ZbsNj9xtXsNAzkAoMK+xZ2JCxIHRcS1ay/iAwxw+d9r
 bnlpI+8tQ79GIGCv3cusJSwq7j1iuQ==
 =wPlW
 -----END PGP SIGNATURE-----

Merge tag 'fscrypt-for-linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt

Pull fscrypto fixes from Ted Ts'o:
 "A code cleanup and bugfix for fs/crypto"

* tag 'fscrypt-for-linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt:
  fscrypt: eliminate ->prepare_context() operation
  fscrypt: remove broken support for detecting keyring key revocation
2017-03-25 15:36:56 -07:00
Linus Torvalds
a00da40fc7 hwmon fixes for v4.11-rc4
Bug fixes in asus_atk0110, it87 and max31790 drivers.
 Added missing API definition to hwmon core.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJY1uZbAAoJEMsfJm/On5mB/vAP/1DjalKgmwB/rAHFNqmGzrmm
 nptUQWtpeeThT/8imZ+uMWkADq/CRTkCIXrNt/V5PgLUvDAgFOgw6OnfbHIbw4h3
 BG6XU959UmHoQCksSJ+r24xzMBXIZ3c+hlM1mAfFgA52r1m+S7L7a+5D3X2lfcqc
 TmaqslBL7VNvPKlKG1JzFM6ZTIia3zGFprUgO+j379akk4u4MKnTk2x8hVHjxLfK
 5t3gpCqCVTlycnl4qdnprxWVZg40nU7wU0Cr026aaFzzJGjDt6Zz5XFNJWRwnYrn
 5Anb62mFZLJui38wkIIKnq+o3pKjEy7lfN7Kx2dP31Q1OC38AsgjGoySsxgwrksR
 FektDrkNOoTK6kStXsgua0dGHuxLZHoABGzxx/FjKyrvlh0mUrMUzLxonpKDVyuS
 i3SPVJmg+b8xeam9XcA2JCKnd6g4GVOj+4EJD2LMHxUUFvGP9Ll9jMEMhYTcazhV
 gzu3lE/wyaRFByuh+kX3wuqqhkv3bAaJ0nsXDFBaP68/obpdPhBCm6R8wCuuI/Rt
 vCzjOqQLP247Awh4fAVjZ87BxobTok9vml58kiDSsbZ0fP0NshiIX2vCqLaOSeDG
 0HrbjEpH1UARa9Kzk+2rZvve/agnIXR7c2mw+ZKzfZhc7eGOxC440nPUGYeijJa0
 E8irmld7/poZuZ5LjBtb
 =XQKx
 -----END PGP SIGNATURE-----

Merge tag 'hwmon-for-linus-v4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - bug fixes in asus_atk0110, it87 and max31790 drivers

 - added missing API definition to hwmon core

* tag 'hwmon-for-linus-v4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (asus_atk0110) fix uninitialized data access
  hwmon: Add missing HWMON_T_ALARM
  hwmon: (it87) Avoid registering the same chip on both SIO addresses
  hwmon: (max31790) Set correct PWM value
2017-03-25 15:31:50 -07:00
Linus Torvalds
4a01fa5e75 Fixups for -rc4 kernel
- Fix for dma_ops change in this kernel, resolving the s390, powerpc,
   and IOMMU operation
 - A few other oops fixes
 - The rest are all minor fixes
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJY1eNNAAoJELgmozMOVy/dS/MQAMK8z2j35Udiop19LQIoQM0B
 5BAmy7Khrz8F+rB5SaFnQfWGT4mg9qOwEeI6eWoKmrByrrIjErZOKLZGgVecxkFx
 agzTPsApD6O3U/h8CYmoED3Hgg+DibQWcdYpVHeBkcYd6ljDYPrh9F28oDVmYVFI
 z3mkBnTNS3wzGdTFAdhW18H4shUeUOQlweWuCNA4LdPjlstITl0WBo6TIe2WfilD
 FEHIH/mkoZwmKAU1GCmLWo0mw9s9ng2YtKN4wKuDWm+BOSSYRr3z/ClGEAjk0aat
 8JouAYZopcnATm5vvjMGeDPnbpgByydriQ7WinxzqFF5A7dg3CrHaN3DhhjowdXt
 ufJrZAcc1VZFhUOABAwmueUlGpLxF/oJD8FcjdvpRgHt/SY5njlQw/yhrqL/7Eew
 zvfFFw1GxLtyPXxB8olWHpaw3S9l7N5MoezlZlrZJvpc0416YGOUsljymyS4p7w1
 Mpfe0kmbn/Whp0Vt7uBJ5WJ1NguGOi0F9hJFQ99Jmf7mfdplCIoRjSnQzWGfkmOd
 NVLHaYnPjmX3lO8RYfKabKTQ+X2D/uBvH0PDn/kc9J9y1jMYwHIq8GHNb1q+QPLq
 Wvlfsvo33sMbo2G2JJu31QOigMlBLy+P88m+j9uHs/nPHLYWzsvPMUhikwtO9a7j
 txOeyoDW+oAPTaIq459u
 =6axB
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma fixes from Doug Ledford:
 "This has been a slow -rc cycle for the RDMA subsystem. We really
  haven't had a lot of rc fixes come in. This pull request is the first
  of this entire rc cycle and it has all of the suitable fixes so far
  and it's still only about 20 patches. The fix for the minor breakage
  cause by the dma mapping patchset is in here, as well as a couple
  other potential oops fixes, but the rest is more minor.

  Summary:

   - fix for dma_ops change in this kernel, resolving the s390, powerpc,
     and IOMMU operation

   - a few other oops fixes

   - the rest are all minor fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
  IB/qib: fix false-postive maybe-uninitialized warning
  RDMA/iser: Fix possible mr leak on device removal event
  IB/device: Convert ib-comp-wq to be CPU-bound
  IB/cq: Don't process more than the given budget
  IB/rxe: increment msn only when completing a request
  uapi: fix rdma/mlx5-abi.h userspace compilation errors
  IB/core: Restore I/O MMU, s390 and powerpc support
  IB/rxe: Update documentation link
  RDMA/ocrdma: fix a type issue in ocrdma_put_pd_num()
  IB/rxe: double free on error
  RDMA/vmw_pvrdma: Activate device on ethernet link up
  RDMA/vmw_pvrdma: Dont hardcode QP header page
  RDMA/vmw_pvrdma: Cleanup unused variables
  infiniband: Fix alignment of mmap cookies to support VIPT caching
  IB/core: Protect against self-requeue of a cq work item
  i40iw: Receive netdev events post INET_NOTIFIER state
2017-03-25 15:25:58 -07:00
Linus Torvalds
4c3de7e5bf Merge branch 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit
Pull audit fix from Paul Moore:
 "We've got an audit fix, and unfortunately it is big.

  While I'm not excited that we need to be sending you something this
  large during the -rcX phase, it does fix some very real, and very
  tangled, problems relating to locking, backlog queues, and the audit
  daemon connection.

  This code has passed our testsuite without problem and it has held up
  to my ad-hoc stress tests (arguably better than the existing code),
  please consider pulling this as fix for the next v4.11-rcX tag"

* 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit:
  audit: fix auditd/kernel connection state tracking
2017-03-25 15:13:55 -07:00
Daniel Vetter
f19aee7f27 drm/vblank: Remove DRM_VBLANKTIME_IN_VBLANK
The core code doesn't care at all about this, it's entirely dead.

Cc: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170322083617.13361-11-daniel.vetter@ffwll.ch
2017-03-25 22:41:32 +01:00
Daniel Vetter
f217f554b2 drm/todo: Add tinydrm refactoring ideas
Discussed with Noralf on the list a bit.

An open question is tinydrm vs. drm_panel, but until we have a clear
idea what's really needed in that space, I think it's best to just
move forward with what we have.

Cc: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170322083617.13361-10-daniel.vetter@ffwll.ch
2017-03-25 22:41:04 +01:00
Daniel Vetter
7cfdf711ff drm: Extract drm_ioctl.h
To match the drm_ioctl.c we already have.

v2: Remove spurious space (Ville).

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2017-03-25 22:40:55 +01:00
Theodore Ts'o
d67d64f423 ext4: fix two spelling nits
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2017-03-25 17:33:31 -04:00
Theodore Ts'o
dac7a4b4b1 ext4: lock the xattr block before checksuming it
We must lock the xattr block before calculating or verifying the
checksum in order to avoid spurious checksum failures.

https://bugzilla.kernel.org/show_bug.cgi?id=193661

Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2017-03-25 17:22:47 -04:00
Daniel Vetter
33e5b6677f drm/tilcdc: Drop calls to modeset_lock_crtc
Again this is an internal helper, not the official way to lock a crtc.

Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170322215058.8671-9-daniel.vetter@ffwll.ch
2017-03-25 22:19:27 +01:00
David Jander
f5a28a7d48 Input: ads7846 - avoid pen up/down when reading hwmon
Each time the HWMON devices are read (e.g. battery voltage) while the
touchscreen is held pressed, extra pen-up and pen-down events are
generated. This is fixed by avoiding the UP event when the touchscreen is
stopped.

Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:38:43 -07:00
Benjamin Tissoires
e839ffab02 Input: synaptics - add support for Intertouch devices
Most of the Synaptics devices are connected through PS/2 and a different
bus (SMBus or HID over I2C). The secondary bus capability is indicated by
the InterTouch bit in extended capability 0x0C.

We only enable the InterTouch device to be created for the laptops
registered with the top software button property or those we know that are
functional. In the future, we might change the default to always rely on
the InterTouch bus. Currently, users can enable/disable the feature with
the psmouse parameter synaptics_intertouch.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:30 -07:00
Dmitry Torokhov
6c53694fb2 Input: synaptics - split device info into a separate structure
In preparation for SMBus/Intertouch device support, move static device
information that we query form the touchpad upon initialization into
separate structure. This will allow us to query the device without
allocating memory first.

Also stop using "unsigned long", everything fits into 32 bit chunks.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:29 -07:00
Benjamin Tissoires
8eb92e5c91 Input: psmouse - add support for SMBus companions
This provides glue between PS/2 devices that enumerate the RMI4 devices
and Elan touchpads to the RMI4 (or Elan) SMBus driver.

The SMBus devices keep their PS/2 connection alive. If the initialization
process goes too far (psmouse_activate called), the device disconnects
from the I2C bus and stays on the PS/2 bus, that is why we explicitly
disable PS/2 device reporting (by calling psmouse_deactivate) before
trying to register SMBus companion device.

The HID over I2C devices are enumerated through the ACPI DSDT, and
their PS/2 device also exports the InterTouch bit in the extended
capability 0x0C. However, the firmware keeps its I2C connection open
even after going further in the PS/2 initialization. We don't need
to take extra precautions with those device, especially because they
block their PS/2 communication when HID over I2C is used.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:29 -07:00
Dmitry Torokhov
c774326a21 Input: psmouse - introduce notion of SMBus companions
Prepare PS/2 mouse drivers to work with devices that are accessible both
via PS/2 and SMBus, which provides higher bandwidth, and thus suits better
for modern multi-touch devices.

We expect that SMBus drivers will take control over the device, so when
we detect SMBus "protocol" we forego registering input device, or enabling
PS/2 device reports (as it usually makes device unresponsive to access over
SMBus).

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:28 -07:00
Dmitry Torokhov
085fa80dfd Input: psmouse - store pointer to current protocol
Instead of storing only protocol "type" in pmsouse structure, store pointer
to the protocol structure, so that we have access to more data without
having to copy it over to psmouse structure.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:27 -07:00
Dmitry Torokhov
0ab3fa5742 Input: psmouse - implement fast reconnect option
Make use of serio's fast reconnect option and allow psmouse protocol
handler's to implement fast reconnect handlers that will be called during
system resume.

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:27 -07:00
Dmitry Torokhov
5ea1320653 Input: serio - add fast reconnect option
Devices connected to serio bus are quite slow, and to improve apparent
speed of resume process, serio core resumes (reconnects) its devices
asynchronously, by posting port reconnect requests to a workqueue.
Unfortunately this means that if there is a dependent device of a given
serio port (for example SMBus part of touchpad connected via both PS/2 and
SMBus), we do not have a good way of ensuring resume order.

This change allows drivers to define "fast reconnect" handlers that would
be called in-line during system resume. Drivers need to ensure that these
handlers are truly "fast".

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-25 10:37:26 -07:00
Linus Torvalds
424b6898c8 A handful of Sunxi and Rockchip clk driver fixes and a core framework
one where we need to copy a string because we can't guarantee it isn't
 freed sometime later.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCAAGBQJY1cCaAAoJEK0CiJfG5JUlXxMQALaln2IpE+TnXxYtbxY474mg
 FUlgLoMO4Oolpn30ilcMrOlMh0dFijI+Qp/t3Ly6BnyYs3IXec684ZRT10LG6j1F
 55Uqy/emFaeiCQqoic2ZO7EmP1EUIRinrEM6T71pjuuomnsgf/35xvtdG2umvZ1m
 Cd3yDEP+LLgbprf1teki+IVuGRUvPfm8LXfNNf60Lu/fqAm3mTHxJbR6OsTbBeI8
 RGJcZXreTUnIUPyo9ejtL9tnCnFzv/1b5MgZcpX0FDywH6roMVEAWmFWQmiPuFcs
 EAyc8DwhRU8PYUJel0Q6W1LReAqnGdwcvQc7Y7KmtAd8f38cobeshR/xNKhsqLbA
 Le3BIzqldaDnUtKz+AQESodzUMnhW7Uuq2GRrg8N9jKMbWKMz2c+ImVLv4iE7YKn
 HUvw7P/ozfSfFkYGw3K7P1pXwWyibbUeU4ybBHSswJ2dS7sxU4EGHiB1U6XsstGj
 lFwTnRGGmZhxSlF+wyZDn8xHYnl/VYLRXGTqZgkrcHqDtvMDwf4358GCYT6FVp4r
 uZYtGuUiktYqnZA73rJBuKDrcHC6MSoG0mQMyOMXQaXLMpXc5auVaK+y6b+sIQRM
 E9JDO76ViAghkZ9ECKDmKZMpfLSsrK4ZTtPBAvnR65HjcdMYkMXj9UiIMaMMefqO
 YvBNtYg5z1eoWCJyh0nV
 =8q6a
 -----END PGP SIGNATURE-----

Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A handful of Sunxi and Rockchip clk driver fixes and a core framework
  one where we need to copy a string because we can't guarantee it isn't
  freed sometime later"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: sunxi-ng: fix recalc_rate formula of NKMP clocks
  clk: sunxi-ng: Fix div/mult settings for osc12M on A64
  clk: rockchip: Make uartpll a child of the gpll on rk3036
  clk: rockchip: add "," to mux_pll_src_apll_dpll_gpll_usb480m_p on rk3036
  clk: core: Copy connection id
  dt-bindings: arm: update Armada CP110 system controller binding
  clk: sunxi-ng: sun6i: Fix enable bit offset for hdmi-ddc module clock
  clk: sunxi: ccu-sun5i needs nkmp
  clk: sunxi-ng: mp: Adjust parent rate for pre-dividers
2017-03-25 10:34:56 -07:00
Russell King
b8e82c1bdd PCI: mvebu: Avoid changing the SCC bit in the Link Status register
It seems on later Armada 38x, the slot clock configuration bit is not
read-only, but can be written.  This means that our RW1C protection ends up
clearing this bit when the link control register is written.

Adjust the mask so that we only avoid writing '1' bits to the RW1C bits of
this register (bits 15 and 14 of the link status) rather than masking out
all the status register bits.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-03-25 12:19:10 -05:00
Olivier Leveque
40dffd9974 staging: iio: adc: ad7280a: fix permission coding style issue
Symbolic permissions 'S_IWUSR | S_IRUGO' are not preferred. Consider using
octal permissions '0644'. Found running checkpatch.

Signed-off-by: Olivier Leveque <o_leveque@orange.fr>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 17:07:24 +00:00
Mark Stenglein
baecc573d8 staging: iio: accel: remove unneeded braces around single statements
Fixes three checkpatch warnings due to braces used when single
statements are sufficient.

Signed-off-by: Mark Stenglein <mark@stengle.in>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 17:02:26 +00:00
Eva Rachel Retuya
cf6c77323a staging: iio: tsl2x7x_core: Fix standard deviation calculation
Standard deviation is calculated as the square root of the variance
where variance is the mean of sample_sum and length. Correct the
computation of statP->stddev in accordance to the proper calculation.

Fixes: 3c97c08b57 ("staging: iio: add TAOS tsl2x7x driver")
Reported-by: Abhiram Balasubramanian <abhiram@cs.utah.edu>
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 16:47:13 +00:00
Jason Yan
1ad45a9bc4 md/raid5-cache: fix payload endianness problem in raid5-cache
The payload->header.type and payload->size are little-endian, so just
convert them to the right byte order.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Cc: <stable@vger.kernel.org> #v4.10+
Signed-off-by: Shaohua Li <shli@fb.com>
2017-03-25 09:38:22 -07:00
Shaohua Li
41743c1f04 md/raid1: skip data copy for behind io for discard request
discard request doesn't have data attached, so it's meaningless to
allocate memory and copy from original bio for behind IO. And the copy
is bogus because bio_copy_data_partial can't handle discard request.

We don't support writesame/writezeros request so far.

Reviewed-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Shaohua Li <shli@fb.com>
2017-03-25 09:38:06 -07:00
Quentin Schulz
4bdc902968 iio: bmg160: reset chip when probing
The gyroscope chip might need to be reset to be used.

Without the chip being reset, the driver stopped at the first
regmap_read (to get the CHIP_ID) and failed to probe.

The datasheet of the gyroscope says that a minimum wait of 30ms after
the reset has to be done.

This patch has been checked on a BMX055 and the datasheet of the BMG160
and the BMI055 give the same reset register and bits.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 16:36:25 +00:00
Song Hongyan
d7ed89d5aa iio: hid: Add humidity sensor support
Environmental humidity sensor is a hid defined sensor,
it shows raw humidity measurement of air.

More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR39b.pdf

According to IIO ABI definition, humidityrelative data output unit is
milli percent. Add the unit convert from percent to milli percent.

Signed-off-by: Song Hongyan <hongyan.song@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 16:32:24 +00:00
Song Hongyan
e0ad9b73e8 iio: hid-sensor-attributes: Fix gravity sensor scale value not right issue
Scale value include two parts: unit conversion and exponent conversion.
Add gravity unit convert table to fix gravity sensor scale value not
right issue.

Signed-off-by: Song Hongyan <hongyan.song@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 16:25:11 +00:00
Manivannan Sadhasivam
5e7f47e495 iio:light: Add support for STMicro VL6180 sensor
This patch adds support for STMicro VL6180 - ALS, range and proximity sensor. Sensor is capable of measuring the light
intensity as well as object distance using TOF (Time of Flight) technology.

Signed-off-by: Manivannan Sadhasivam <manivannanece23@gmail.com>
Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 16:20:46 +00:00
Shaohua Li
f45958756f block: remove bio_clone_bioset_partial()
commit c18a1e0(block: introduce bio_clone_bioset_partial()) introduced
bio_clone_bioset_partial() for raid1 write behind IO. Now the write behind is
rewritten by Ming. We don't need the API any more, so revert the commit.

Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Shaohua Li <shli@fb.com>
2017-03-25 09:18:37 -07:00
Arushi Singhal
e29e7b3236 staging: iio: Remove extra Parenthesis.
Remove the extra parenthesis remove the checkpatch issue.

Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 16:04:38 +00:00
Enric Balletbo i Serra
754434c445 iio: cros_ec_sensors: Use devm to setup the triggered buffer.
Use resourced managed function devm_iio_triggered_buffer_setup
to make error path simpler and be able to get rid of the remove
function.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 15:08:29 +00:00
Enric Balletbo i Serra
a096926ed4 iio: cros_ec_sensors: Fix return value to get raw and calibbias data.
The cros_ec_sensors_read function must return the type of value on all
cases. This was always true except for RAW and CALIBBIAS data which
returned an error or 0. This patch just fixes the mistake I introduced
when submitting the series.

Fixes: commit c14dca07a3 (iio: cros_ec_sensors: add ChromeOS EC
Contiguous Sensors driver)

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 15:06:14 +00:00
Heiner Kallweit
48ba7c3c0b iio: adc: meson-saradc: add calibration
This patch adds calibration for the Meson SAR ADC.
Points 25% vref and 75% vref are used for calibration.
It uses a simple linear calibration function: SCALE * val + BIAS

Successfully tested on a Odroid C2.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-03-25 14:55:03 +00:00
Yunlei He
59c9081bc8 f2fs: allow write page cache when writting cp
This patch allow write data to normal file when writting
new checkpoint.

We relax three limitations for write_begin path:
1. data allocation
2. node allocation
3. variables in checkpoint

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-03-25 00:19:37 -07:00
Naohiro Aota
5659495a7a uapi: add missing install of userio.h
While commit 5523662edd ("Input: add userio module") added userio.h
under the uapi/ directory, it forgot to add the header file to Kbuild.
Thus, the file was missing from header installation.

Signed-off-by: Naohiro Aota <naota@elisp.net>
Reviewed-by: Lyude Paul <thatslyude@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-03-24 23:06:39 -07:00
Alexei Starovoitov
b1977682a3 bpf: improve verifier packet range checks
llvm can optimize the 'if (ptr > data_end)' checks to be in the order
slightly different than the original C code which will confuse verifier.
Like:
if (ptr + 16 > data_end)
  return TC_ACT_SHOT;
// may be followed by
if (ptr + 14 > data_end)
  return TC_ACT_SHOT;
while llvm can see that 'ptr' is valid for all 16 bytes,
the verifier could not.
Fix verifier logic to account for such case and add a test.

Reported-by: Huapeng Zhou <hzhou@fb.com>
Fixes: 969bf05eb3 ("bpf: direct packet access")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:51:28 -07:00
Eric Dumazet
43a6684519 ping: implement proper locking
We got a report of yet another bug in ping

http://www.openwall.com/lists/oss-security/2017/03/24/6

->disconnect() is not called with socket lock held.

Fix this by acquiring ping rwlock earlier.

Thanks to Daniel, Alexander and Andrey for letting us know this problem.

Fixes: c319b4d76b ("net: ipv4: add IPPROTO_ICMP socket kind")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Daniel Jiang <danieljiang0415@gmail.com>
Reported-by: Solar Designer <solar@openwall.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:50:28 -07:00
David S. Miller
2239cc6343 Merge branch 'epoll-busypoll'
Alexander Duyck says:

====================
Add busy poll support for epoll

This patch set adds support for using busy polling with epoll. The main
idea behind this is that we record the NAPI ID for the last event that is
moved onto the ready list for the epoll context and then when we no longer
have any events on the ready list we begin polling with that ID. If the
busy polling does not yield any events then we will reset the NAPI ID to 0
and wait until a new event is added to the ready list with a valid NAPI ID
before we will resume busy polling.

Most of the changes in this set authored by me are meant to be cleanup or
fixes for various things. For example, I am trying to make it so that we
don't perform hash look-ups for the NAPI instance when we are only working
with sender_cpu and the like.

At the heart of this set is the last 3 patches which enable epoll support
and add support for obtaining the NAPI ID of a given socket. With these it
becomes possible for an application to make use of epoll and get optimal
busy poll utilization by stacking multiple sockets with the same NAPI ID on
the same epoll context.

v1: The first version of this series only allowed epoll to busy poll if all
    of the sockets with a NAPI ID shared the same NAPI ID. I feel we were
    too strict with this requirement, so I changed the behavior for v2.
v2: The second version was pretty much a full rewrite of the first set. The
    main changes consisted of pulling apart several patches to better
    address the need to clean up a few items and to make the code easier to
    review. In the set however I went a bit overboard and was trying to fix
    an issue that would only occur with 500+ years of uptime, and in the
    process limited the range for busy_poll/busy_read unnecessarily.
v3: Split off the code for limiting busy_poll and busy_read into a separate
    patch for net.
    Updated patch that changed busy loop time tracking so that it uses
    "local_clock() >> 10" as we originally did.
    Tweaked "Change return type.." patch by moving declaration of "work"
    inside the loop where is was accessed and always reset to 0.
    Added "Acked-by" for patches that received acks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:49:31 -07:00
Sridhar Samudrala
6d4339028b net: Introduce SO_INCOMING_NAPI_ID
This socket option returns the NAPI ID associated with the queue on which
the last frame is received. This information can be used by the apps to
split the incoming flows among the threads based on the Rx queue on which
they are received.

If the NAPI ID actually represents a sender_cpu then the value is ignored
and 0 is returned.

Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:49:31 -07:00
Sridhar Samudrala
bf3b9f6372 epoll: Add busy poll support to epoll with socket fds.
This patch adds busy poll support to epoll. The implementation is meant to
be opportunistic in that it will take the NAPI ID from the last socket
that is added to the ready list that contains a valid NAPI ID and it will
use that for busy polling until the ready list goes empty.  Once the ready
list goes empty the NAPI ID is reset and busy polling is disabled until a
new socket is added to the ready list.

In addition when we insert a new socket into the epoll we record the NAPI
ID and assume we are going to receive events on it.  If that doesn't occur
it will be evicted as the active NAPI ID and we will resume normal
behavior.

An application can use SO_INCOMING_CPU or SO_REUSEPORT_ATTACH_C/EBPF socket
options to spread the incoming connections to specific worker threads
based on the incoming queue. This enables epoll for each worker thread
to have only sockets that receive packets from a single queue. So when an
application calls epoll_wait() and there are no events available to report,
busy polling is done on the associated queue to pull the packets.

Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:49:31 -07:00
Sridhar Samudrala
7db6b048da net: Commonize busy polling code to focus on napi_id instead of socket
Move the core functionality in sk_busy_loop() to napi_busy_loop() and
make it independent of sk.

This enables re-using this function in epoll busy loop implementation.

Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:49:31 -07:00
Alexander Duyck
37056719bb net: Track start of busy loop instead of when it should end
This patch flips the logic we were using to determine if the busy polling
has timed out.  The main motivation for this is that we will need to
support two different possible timeout values in the future and by
recording the start time rather than when we would want to end we can focus
on making the end_time specific to the task be it epoll or socket based
polling.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:49:31 -07:00
Alexander Duyck
2b5cd0dfa3 net: Change return type of sk_busy_loop from bool to void
checking the return value of sk_busy_loop. As there are only a few
consumers of that data, and the data being checked for can be replaced
with a check for !skb_queue_empty() we might as well just pull the code
out of sk_busy_loop and place it in the spots that actually need it.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:49:30 -07:00
Alexander Duyck
d2e64dbbe9 net: Only define skb_mark_napi_id in one spot instead of two
Instead of defining two versions of skb_mark_napi_id I think it is more
readable to just match the format of the sk_mark_napi_id functions and just
wrap the contents of the function instead of defining two versions of the
function.  This way we can save a few lines of code since we only need 2 of
the ifdef/endif but needed 5 for the extra function declaration.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:49:30 -07:00
Alexander Duyck
e5907459ce tcp: Record Rx hash and NAPI ID in tcp_child_process
While working on some recent busy poll changes we found that child sockets
were being instantiated without NAPI ID being set.  In our first attempt to
fix it, it was suggested that we should just pull programming the NAPI ID
into the function itself since all callers will need to have it set.

In addition to the NAPI ID change I have dropped the code that was
populating the Rx hash since it was actually being populated in
tcp_get_cookie_sock.

Reported-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24 20:49:30 -07:00