| Commit message (Collapse) | Author | Age | Files | Lines |
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Pull ntb (non-transparent bridge) updates from Jon Mason:
"Add support for Haswell NTB split BARs, a debugfs entry for basic
debugging info, and some code clean-ups"
* tag 'ntb-3.18' of git://github.com/jonmason/ntb:
ntb: Adding split BAR support for Haswell platforms
ntb: use errata flag set via DID to implement workaround
ntb: conslidate reading of PPD to move platform detection earlier
ntb: move platform detection to separate function
NTB: debugfs device entry
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On the Haswell platform, a split BAR option to allow creation of 2
32bit BARs (4 and 5) from the 64bit BAR 4. Adding support for this
new option.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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Instead of using a module parameter, we should detect the errata via
PCI DID and then set an appropriate flag. This will be used for additional
errata later on.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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To simplify some of the platform detection code. Move the platform detection
to a function to be called earlier.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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Move the platform detection function to separate functions to allow
easier maintenence.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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Create a debugfs entry for the NTB device to log the basic device info,
as well as display the error count on a number of registers.
Signed-off-by: Jon Mason <jon.mason@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Highlights from the I2C subsystem for 3.18:
- new drivers for Axxia AM55xx, and Hisilicon hix5hd2 SoC.
- designware driver gained AMD support, exynos gained exynos7 support
The rest is usual driver stuff. Hopefully no lowlights this time"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i801: Add Device IDs for Intel Sunrise Point PCH
i2c: hix5hd2: add i2c controller driver
i2c-imx: Disable the clock on probe failure
i2c: designware: Add support for AMD I2C controller
i2c: designware: Rework probe() to get clock a bit later
i2c: designware: Default to fast mode in case of ACPI
i2c: axxia: Add I2C driver for AXM55xx
i2c: exynos: add support for HSI2C module on Exynos7
i2c: mxs: detect No Slave Ack on SELECT in PIO mode
i2c: cros_ec: Remove EC_I2C_FLAG_10BIT
i2c: cros-ec-tunnel: Add of match table
i2c: rcar: remove sign-compare flaw
i2c: ismt: Use minimum descriptor size
i2c: imx: Add arbitration lost check
i2c: rk3x: Remove unlikely() annotations
i2c: rcar: check for no IRQ in rcar_i2c_irq()
i2c: rcar: make rcar_i2c_prepare_msg() *void*
i2c: rcar: simplify check for last message
i2c: designware: add support of platform data to set I2C mode
i2c: designware: add support of I2C standard mode
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This patch adds the I2C/SMBus Device IDs for the Intel Sunrise Point PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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I2C drivers for hix5hd2 soc series, including following chipset
Hi3716CV200, Hi3719CV100, Hi3718CV100, Hi3719MV100, Hi3718MV100.
Signed-off-by: Wei Yan <sledge.yanwei@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
[wsa: folded dt docs into this patch]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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In the case of errors during probe, we should disable i2c_imx->clk.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Add support for AMD version of the DW I2C host controller. The device is
enumerated from ACPI namespace with ACPI ID AMD0010. Because the core
driver needs an input source clock, and this is not an Intel LPSS device
where clocks are provided through drivers/acpi/acpi_lpss.c, we register the
clock ourselves if the clock rate is given in ->driver_data
Signed-off-by: Carl Peng <carlpeng008@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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In order to be able to create missing clock for AMD (and in future possibly
others) we move getting clock for the device a bit later. Also make ACPI/DT
configuration in the same place depending on from where the device was
enumerated from.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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There is no way in ACPI to tell in which speed the host controller is
supposed to run, so we default to fast mode (400KHz). Since this has been
the default all the time there should be no functional changes with this
change.
This is the first step required to refactor the driver probe so that we can
supply source clock from ACPI part of the driver to the core.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Add I2C bus driver for the controller found in the LSI Axxia family SoCs. The
driver implements 10-bit addressing and SMBus transfer modes via emulation
(including SMBus block data read).
Signed-off-by: Anders Berg <anders.berg@avagotech.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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The HSI2C module on Exynos7 differs in the transfer status
bits. Transfer status bits were moved to INT_ENABLE and
INT_STATUS registers
This patch adds support for the HSI2C module on Exynos7.
1. Implementes a "hw" field in the variant struct to distinguish
the hardware.
2. Updates the dt-new compatible in dt-binding documenation
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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i2cdetect scanned i2c bus slow because the i2c-mxs driver ignored the
NO_SLAVE_ACK bit during busy-waiting loop. Thanks to the patch, the
speedup happens.
Signed-off-by: Janusz Uzycki <j.uzycki@elproma.com.pl>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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In <https://lkml.org/lkml/2014/6/10/265> pointed out that the 10-bit
flag in the cros_ec_tunnel was useless. It went into a 16-bit flags
field but was defined at (1 << 16).
Since we have no 10-bit i2c devices on the other side of the tunnel on
any known devices this was never a problem. Until we do it makes
sense to remove this code. On the EC side the code to handle this
flag was removed in <https://chromium-review.googlesource.com/204162>.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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To enable the cros-ec-tunnel driver to be auto-loaded when build as a
module add an of match table (and export it) to match the modalias
information passed on to userspace as the Cros EC MFD driver registers
the MFD subdevices with an of_compatibility string.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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gcc rightfully says:
drivers/i2c/busses/i2c-rcar.c:198:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Software is allowed to allocate number of descriptor size from 2 to 256,
this i2c controller could process more descriptor, but for i2c core soft
ware layer, only one i2c transaction is allowed each time.
So here switch to minimum 2 descriptor when initialization.
Signed-off-by: Fan Du <fan.du@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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According to the i.mx spec, for multimaster mode, if I2C is
enabled when the bus is busy and asserts start, hardware inhibits
the transmission, clears MSTA without signaling a stop, generate
an interrupt, and set I2C_I2SR[IAL] to indicate a failed attempt
to engage the bus, which means arbitration lost. In this case,
we should first test I2C_I2SR[IAL], and clear this bit if it is
set, and then I2C controller default to slave receive mode.
This patch check the IAL bit every time before an I2c transmission.
if IAL is set, clear it and make I2C controller to default mode.
Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Having a transfer more than 32 bits is not all that unlikely. Remove
the annotation.
The unlikely in the IRQ handler can't gain us much. It's not in a
loop, so at most it would save 1 instruction per IRQ, which isn't
much. In fact on the compiler I tested it produced the exact same
code. Remove it too.
Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Check if the ICMSR register (masked with the ICMIER register) evaluates to 0 in
the driver's interrupt handler and return IRQ_NONE in that case, like many other
drivers do.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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rcar_i2c_prepare_msg() always returns 0, so we can make this function return
*void* and thus remove the result check in rcar_i2c_master_xfer().
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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rcar_i2c_master_xfer() needlessly compares the message pointers (using indirect
addressing) in order to detect the last I2C message, while it's enough to only
compare the message indexes.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Use the platform data to set the clk_freq when there is no DT configuration
available. The clk_freq in turn will determine the I2C speed mode.
In Quark, there is currently no other configuration mechanism other than
board files.
Signed-off-by: Raymond Tan <raymond.tan@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Hock Leong Kweh <hock.leong.kweh@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Some legacy devices support ony I2C standard mode at 100kHz.
This patch allows to select the standard mode through the DTS
with the use of the existing clock-frequency parameter.
When clock-frequency parameter is not set, the fast mode is selected.
Only when the parameter is set at 100000, the standard mode is selected.
Signed-off-by: Romain Baeriswyl <romainba@abilis.com>
Reviewed-by: Christian Ruppert <christian.ruppert@abilis.com>
Acked-by: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull second round of input updates from Dmitry Torokhov:
"Mostly simple bug fixes, although we do have one brand new driver for
Microchip AR1021 i2c touchscreen.
Also there is the change to stop trying to use i8042 active
multiplexing by default (it is still possible to activate it via
i8042.nomux=0 on boxes that implement it)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: xpad - add Thrustmaster as Xbox 360 controller vendor
Input: xpad - add USB ID for Thrustmaster Ferrari 458 Racing Wheel
Input: max77693-haptic - fix state check in imax77693_haptic_disable()
Input: xen-kbdfront - free grant table entry in xenkbd_disconnect_backend
Input: alps - fix v4 button press recognition
Input: i8042 - disable active multiplexing by default
Input: i8042 - add noloop quirk for Asus X750LN
Input: synaptics - gate forcepad support by DMI check
Input: Add Microchip AR1021 i2c touchscreen
Input: cros_ec_keyb - add of match table
Input: serio - avoid negative serio device numbers
Input: avoid negative input device numbers
Input: automatically set EV_ABS bit in input_set_abs_params
Input: adp5588-keys - cancel workqueue in failure path
Input: opencores-kbd - switch to using managed resources
Input: evdev - fix EVIOCG{type} ioctl
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Add Thrustmaster as Xbox 360 controller vendor. This is required for
example to make the GP XID (044f:b326) gamepad work.
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Add the USB ID for the Xbox 360 Thrustmaster Ferrari 458 Racing Wheel.
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The check to see whether the device is already disabled in
max77693_haptic_disable() was inversed, this change corrects it.
Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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xenkbd_disconnect_backend doesn't free grant table entry. This bug affects
live migration.
xenkbd_disconnect_backend uses gnttab_end_foreign_access_ref to handle
grant table entry which doesn't really free an entry.
Thus every time we do xenkbd_resume, grant table entry increses by one. As
an grant table entry occupies 8 bytes, an grant table page has at most 512
entries. Every 512 times we do xenkdb_resume, grant table pages increses by
one.
After around 3500 times of live migration, grant table pages will increase
by 7, causing too many pages to populate and hitting max_pages limit when
assigning pages.Thus assign_pages will fail, so will live migration.
Signed-off-by: Chang Huaixin <huaixin.chx@alibaba-inc.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Since the change to struct input_mt_pos some variables are now bitfields
instead of integers. Automatic conversion from integer to bitfield entry
destroys information, therefore enforce boolean interpretation instead.
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1114768
Fixes: 02d04254a5df ("Input: alps - use struct input_mt_pos to track coordinates")
Signed-off-by: Andreas Bosch <linux@progandy.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Active multiplexing is a nice feature as it allows several pointing devices
(such as touchpad and external mouse) use their native protocols at the
same time. Unfortunately many manufacturers do not implement the feature
properly even though they advertise it. The problematic implementations are
never fixed, since Windows by default does not use this mode, and move from
one BIOS/model of laptop to another. When active multiplexing is broken
turning it on usually results in touchpad, keyboard, or both unresponsive.
With PS/2 usage on decline (most of PS/2 devices in use nowadays are
internal laptop touchpads), I expect number of users who have laptops with
working MUX implementation, docking stations with external PS/2 ports, and
who are still using external PS/2 mice, to be rather small. Let's flip the
default to be OFF and allow activating it through i8042.nomux=0 kernel
option. We'll also keep DMI table where we can record known good models.
Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Without this the aux port does not get detected, and consequently the
touchpad will not work.
https://bugzilla.redhat.com/show_bug.cgi?id=1110011
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Unfortunately, ForcePad capability is not actually exported over PS/2, so
we have to resort to DMI checks.
Cc: stable@vger.kernel.org
Reported-by: Nicole Faerber <nicole.faerber@kernelconcepts.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Synchronize with mainline to bring in changes to Synaptics and i8042
drivers.
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This patch adds support for the ar1021 i2c based touchscreen.
The driver is quite simple and only supports the Touch
Reporting Protocol.
This is the final version for an RFC patch send a while ago.
http://www.spinics.net/lists/linux-input/msg29419.html
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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To enable the cros_ec_keyb driver to be auto-loaded when build as
module add an of match table (and export it) to match the modalias
information passed on to userspace as the Cros EC MFD driver registers
the MFD subdevices with an of_compatibility string.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fix the format string for serio device name generation to avoid negative
device numbers when the id exceeds the maximum signed integer value.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Fix the format string for input device name generation to avoid negative
device numbers when the id exceeds the maximum signed integer value.
Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Let's automatically set EV_ABS bit in device's event type list when calling
input_set_abs_params() so that drivers do not have to do it explicitly.
These calls are never in a hot paths so we won't lose much time by setting
the same bit several times.
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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In case we start with the device not fully quiesced we should make sure we
cancel the workqueue after freeing interrupt.
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This change switch to managed resources to simplifies error handling
and module unloading and does away with platform_driver remove function.
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The 'max' size passed into the function is measured in number of bits
(KEY_MAX, LED_MAX, etc) so we need to convert it accordingly before trying
to copy the data out, otherwise we will try copying too much and end up
with up with a page fault.
Reported-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/RDMA updates from Roland Dreier:
- large set of iSER initiator improvements
- hardware driver fixes for cxgb4, mlx5 and ocrdma
- small fixes to core midlayer
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (47 commits)
RDMA/cxgb4: Fix ntuple calculation for ipv6 and remove duplicate line
RDMA/cxgb4: Add missing neigh_release in find_route
RDMA/cxgb4: Take IPv6 into account for best_mtu and set_emss
RDMA/cxgb4: Make c4iw_wr_log_size_order static
IB/core: Fix XRC race condition in ib_uverbs_open_qp
IB/core: Clear AH attr variable to prevent garbage data
RDMA/ocrdma: Save the bit environment, spare unncessary parenthesis
RDMA/ocrdma: The kernel has a perfectly good BIT() macro - use it
RDMA/ocrdma: Don't memset() buffers we just allocated with kzalloc()
RDMA/ocrdma: Remove a unused-label warning
RDMA/ocrdma: Convert kernel VA to PA for mmap in user
RDMA/ocrdma: Get vlan tag from ib_qp_attrs
RDMA/ocrdma: Add default GID at index 0
IB/mlx5, iser, isert: Add Signature API additions
Target/iser: Centralize ib_sig_domain setting
IB/iser: Centralize ib_sig_domain settings
IB/mlx5: Use extended internal signature layout
IB/iser: Set IP_CSUM as default guard type
IB/iser: Remove redundant assignment
IB/mlx5: Use enumerations for PI copy mask
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Parenthesis around constants serves no purpose, save the bits!
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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No need to re-invent the wheel here
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Get rid of obfuscating ocrdma_alloc_mqe() kzalloc() wrapper as all it
did was to make it less visible that the structure was already cleared
on allocation.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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