Change kmem_free to use kvfree() generic function, remove the
duplicated code.
Signed-off-by: Yalin Wang <yalin.wang@sonymobile.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This logic is duplicated in xfs_file_fallocate and xfs_ioc_space, and
we'll need another copy of it for pNFS block support.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
One more week's worth of fixes. Worth pointing out here are:
- A patch fixing detaching of iommu registrations when a device is removed --
earlier the ops pointer wasn't managed properly
- Another set of Renesas boards get the same GIC setup fixup as others have in
previous -rcs
- Serial port aliases fixups for sunxi. We did the same to tegra but we
caught that in time before the merge window due to more machines being
affected. Here it took longer for anyone to notice.
- A couple more DT tweaks on sunxi
- A follow-up patch for the mvebu coherency disabling in last -rc batch
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Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"One more week's worth of fixes. Worth pointing out here are:
- A patch fixing detaching of iommu registrations when a device is
removed -- earlier the ops pointer wasn't managed properly
- Another set of Renesas boards get the same GIC setup fixup as
others have in previous -rcs
- Serial port aliases fixups for sunxi. We did the same to tegra but
we caught that in time before the merge window due to more machines
being affected. Here it took longer for anyone to notice.
- A couple more DT tweaks on sunxi
- A follow-up patch for the mvebu coherency disabling in last -rc
batch"
* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device()
ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds
ARM: mvebu: don't set the PL310 in I/O coherency mode when I/O coherency is disabled
ARM: sunxi: dt: Fix aliases
ARM: dts: sun4i: Add simplefb node with de_fe0-de_be0-lcd0-hdmi pipeline
ARM: dts: sun6i: ippo-q8h-v5: Fix serial0 alias
ARM: dts: sunxi: Fix usb-phy support for sun4i/sun5i
Pull input layer updates from Dmitry Torokhov:
"Just a few quirks for PS/2 this time"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elantech - add more Fujtisu notebooks to force crc_enabled
Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857)
Input: synaptics - adjust min/max for Lenovo ThinkPad X1 Carbon 2nd
Useful to avoid recompiling to disable fbdev. Useful because otherwise
the first modeset happens under console_lock (ie. debugging sadness).
Signed-off-by: Rob Clark <robdclark@gmail.com>
Olivier Sobrie says:
====================
hso: fix some problems in the disconnect path
These patches attempt to fix some problems I observed when the hso
device is disconnected.
Several patches of this serie are fixing crashes or memleaks when a
hso device is disconnected.
This serie of patches is based on v3.18.
changes in v2:
- Last patch of the serie dropped since another patch fix the issue.
See http://marc.info/?l=linux-usb&m=142186699418489 for more info.
- Added an extra patch avoiding name conflicts for the rfkill interface.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
By using only the usb interface number for the rfkill name, we might
have a name conflicts in case two similar hso devices are connected.
In this patch, the name of the hso rfkill interface embed the value
of a counter that is incremented each time a new rfkill interface is
added.
Suggested-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
For hso serial devices, two cancel_work_sync were missing in the
disconnect method.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
The serial_table is used to map the minor number of the usb serial device
to its associated context. The table is updated in the probe method and
in hso_serial_ref_free() which is called either from the tty cleanup
method or from the usb disconnect method.
This patch ensures that the serial_table is updated in the disconnect
method and no more from the cleanup method to avoid the following
potential race condition.
- hso_disconnect() is called for usb interface "x". Because the serial
port was open and because the cleanup method of the tty_port hasn't
been called yet, hso_serial_ref_free() is not run.
- hso_probe() is called and fails for a new hso serial usb interface
"y". The function hso_free_interface() is called and iterates
over the element of serial_table to find the device associated to
the usb interface context.
If the usb interface context of usb interface "y" has been created
at the same place as for usb interface "x", then the cleanup
functions are called for usb interfaces "x" and "y" and
hso_serial_ref_free() is called for both interfaces.
- release_tty() is called for serial port linked to usb interface "x"
and possibly crash because the tty_port structure contained in the
hso_device structure has been freed.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function hso_serial_common_free() is called either by the cleanup
method of the tty or by the usb disconnect method.
In the former case, the usb_disconnect() has been already called
and the sysfs group associated to the device has been removed.
By calling tty_unregister directly from the usb_disconnect() method,
we avoid a warning due to the removal of the sysfs group of the usb
device.
Example of warning:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 778 at fs/sysfs/group.c:225 sysfs_remove_group+0x50/0x94()
sysfs group c0645a88 not found for kobject 'ttyHS5'
Modules linked in:
CPU: 0 PID: 778 Comm: kworker/0:3 Tainted: G W 3.18.0+ #105
Workqueue: events release_one_tty
[<c000dfe4>] (unwind_backtrace) from [<c000c014>] (show_stack+0x14/0x1c)
[<c000c014>] (show_stack) from [<c0016bac>] (warn_slowpath_common+0x5c/0x7c)
[<c0016bac>] (warn_slowpath_common) from [<c0016c60>] (warn_slowpath_fmt+0x30/0x40)
[<c0016c60>] (warn_slowpath_fmt) from [<c00ddd14>] (sysfs_remove_group+0x50/0x94)
[<c00ddd14>] (sysfs_remove_group) from [<c0221e44>] (device_del+0x30/0x190)
[<c0221e44>] (device_del) from [<c0221fb0>] (device_unregister+0xc/0x18)
[<c0221fb0>] (device_unregister) from [<c0221fec>] (device_destroy+0x30/0x3c)
[<c0221fec>] (device_destroy) from [<c01fe1dc>] (tty_unregister_device+0x2c/0x5c)
[<c01fe1dc>] (tty_unregister_device) from [<c029a428>] (hso_serial_common_free+0x2c/0x88)
[<c029a428>] (hso_serial_common_free) from [<c029a4c0>] (hso_serial_ref_free+0x3c/0xb8)
[<c029a4c0>] (hso_serial_ref_free) from [<c01ff430>] (release_one_tty+0x30/0x84)
[<c01ff430>] (release_one_tty) from [<c00271d4>] (process_one_work+0x21c/0x3c8)
[<c00271d4>] (process_one_work) from [<c0027758>] (worker_thread+0x3d8/0x560)
[<c0027758>] (worker_thread) from [<c002be4c>] (kthread+0xc0/0xcc)
[<c002be4c>] (kthread) from [<c0009630>] (ret_from_fork+0x14/0x24)
---[ end trace cb88537fdc8fa208 ]---
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need for a dedicated reset work in the hso driver since
there is already a reset work foreseen in usb_interface that does
the same.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
In other functions of the driver, variables of type "struct hso_serial"
are denoted by "serial" and variables of type "struct hso_device" are
denoted by "hso_dev". This patch makes the hso_free_interface()
consistent with these notations.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the rfkill interface was created, a buffer containing the name
of the rfkill node was allocated. This buffer was never freed when the
device disappears.
To fix the problem, we put the name given to rfkill_alloc() in
the hso_net structure.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the disconnect path, tx_buffer should freed like tx_data to avoid
a memory leak when the device disconnects.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the device disappear, the function hso_disconnect() is called to
perform cleanup. In the cleanup function, hso_free_interface() calls
tty_port_tty_hangup() in view of scheduling a work to hang up the tty if
needed. If the port was not open then hso_serial_ref_free() is called
directly to cleanup everything. Otherwise, hso_serial_ref_free() is called
when the last fd associated to the port is closed.
For each open port, tty_release() will call the close method,
hso_serial_close(), which drops the last kref and call
hso_serial_ref_free() which unregisters, destroys the tty port
and finally frees the structure in which the tty_port structure
is included. Later, in tty_release(), more precisely when release_tty()
is called, the tty_port previously freed is accessed to cancel
the tty buf workqueue and it leads to a crash.
In view of avoiding this crash, we add a cleanup method that is called
at the end of the hangup process and we drop the last kref in this
function when all the ports have been closed, when tty_port is no
more needed and when it is safe to free the structure containing the
tty_port structure.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
No timer related function is used in this driver.
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Combining -Werror with all the extra warning flags that W=1 adds doesn't
go so well. Especially because some of the warnings triggered are from
included headers. So just drop -Werror.
Signed-off-by: Rob Clark <robdclark@gmail.com>
In case we request a number of SMP blocks which is lower than
the already reserved blocks, we should not try to allocate a
negative number, but 0 blocks instead.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
So after clarification from qcom, it seems mdp4 and mdp5 support
*de*interlacing but not generating an interlaced signal. Which would
explain why interlaced modes never worked properly.
So disable in the one connector which was claiming to support
interlaced.
Signed-off-by: Rob Clark <robdclark@gmail.com>
The gnome-shell wayland compositor triggers a setcrtc with an fb that is
still being rendered, triggering the call to _wait_fence_interruptable().
But a NULL timeout means "don't wait, return -EBUSY if not ready", which
in turn causes the setcrtc to fail.
Signed-off-by: Rob Clark <robdclark@gmail.com>
This patch implements the hardware accelarated cursor
support for MDP5 platforms.
Signed-off-by: Beeresh Gopal <gbeeresh@codeaurora.org>
Signed-off-by: Wentao Xu <wentaox@codeaurora.org>
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
In the same idea mdp5_cfg was added, this change allows us to quickly
add new instances, such as apq8084's HDMI in this case.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This change add the regulator/clock configuration for MDP5 v1.3.
This config is close to the one already existing for 8x74, except
that one more regulator is needed (hpd-5v-en).
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Instead of reporting BUG_ON when resources arrays are not
dimensioned correctly, this patch does a dynamic allocation of
these arrays. This is needed for the following patches that add a
regulator for a new target.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
mdp5_ctl_set_intf()'s second argument should be "int", not "enum mdp5_intf".
The passed in value is "intf", not "intf_id".
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Modified the hard-coded hdmi connector/encoder implementations in msm drm
driver to support both edp and hdmi.
V1: Initial change
V2: Address Thierry's change
Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This change adds a new eDP connector in msm drm driver. With this
change, eDP panel can work with msm platform under drm framework.
v1: Initial change
v2: Address Rob's comments
Use generated header file for register definitions
Change to devm_* APIs
v3: Address Thierry's comments and rebase on top of atomic changes
Remove edp_bridge_mode_fixup
Remove backlight control code and rely on pwm-backlight
Remove continuous splash screen support for now
Change to gpiod_* APIs
v4: Fix kbuild test issue
Signed-off-by: Hai Li <hali@codeaurora.org>
[robclark: v5: rebase on drm_bridge changes in drm-next]
Signed-off-by: Rob Clark <robdclark@gmail.com>
The patch add support for YUV frame format
for MDP4 platform.
Signed-off-by: Beeresh Gopal <gbeeresh@codeaurora.org>
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This change adds the NV12 format support for public planes.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Both MDP4 and MDP5 share some code as far as YUV support is
concerned. This change adds this information and will be followed
by the actual MDP4 and MDP5 YUV support patches.
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Resync from rnndb database, to pull in register defines for:
* eDP
* HDMI/HDCP
* mdp4/mdp5 YUV support
* mdp5 hw cursor support
Signed-off-by: Rob Clark <robdclark@gmail.com>
On !SMP systems spinlocks do not exist. Thus checking of they
are active will always fail.
Use
assert_spin_locked(lock);
instead of
BUG_ON(!spin_is_locked(lock));
to not BUG() on all UP systems.
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
[robclark: drop stray ')']
Signed-off-by: Rob Clark <robdclark@gmail.com>
3d3f8b1f8b ("drm/bridge: make bridge registration independent of drm
flow") resulted that the hdmi bridge object would be leaked at teardown.
Just switch over to devm_kzalloc() as the easy way to solve this.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Commit 8eb23b9f35 ("sched: Debug nested sleeps") added code to report
on nested sleep conditions, which we generally want to avoid because the
inner sleeping operation can re-set the thread state to TASK_RUNNING,
but that will then cause the outer sleep loop not actually sleep when it
calls schedule.
However, that's actually valid traditional behavior, with the inner
sleep being some fairly rare case (like taking a sleeping lock that
normally doesn't actually need to sleep).
And the debug code would actually change the state of the task to
TASK_RUNNING internally, which makes that kind of traditional and
working code not work at all, because now the nested sleep doesn't just
sometimes cause the outer one to not block, but will cause it to happen
every time.
In particular, it will cause the cardbus kernel daemon (pccardd) to
basically busy-loop doing scheduling, converting a laptop into a heater,
as reported by Bruno Prémont. But there may be other legacy uses of
that nested sleep model in other drivers that are also likely to never
get converted to the new model.
This fixes both cases:
- don't set TASK_RUNNING when the nested condition happens (note: even
if WARN_ONCE() only _warns_ once, the return value isn't whether the
warning happened, but whether the condition for the warning was true.
So despite the warning only happening once, the "if (WARN_ON(..))"
would trigger for every nested sleep.
- in the cases where we knowingly disable the warning by using
"sched_annotate_sleep()", don't change the task state (that is used
for all core scheduling decisions), instead use '->task_state_change'
that is used for the debugging decision itself.
(Credit for the second part of the fix goes to Oleg Nesterov: "Can't we
avoid this subtle change in behaviour DEBUG_ATOMIC_SLEEP adds?" with the
suggested change to use 'task_state_change' as part of the test)
Reported-and-bisected-by: Bruno Prémont <bonbons@linux-vserver.org>
Tested-by: Rafael J Wysocki <rjw@rjwysocki.net>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Cc: Ilya Dryomov <ilya.dryomov@inktank.com>,
Cc: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Hurley <peter@hurleysoftware.com>,
Cc: Davidlohr Bueso <dave@stgolabs.net>,
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As a result of atomic DPMS support, the various prepare/commit hooks get
called in a way that msm dislikes. We were expecting prepare/commit to
bracket a modeset, which is no longer the case. This was needed to hold
various extra clk's (such as interface clks) on while we are touching
registers, and in the case of mdp4 holding vblank enabled.
The most straightforward way to deal with this, since we already have
our own atomic_commit(), is to just handle prepare/commit internally to
the driver (with some additional vfuncs for mdp4 vs mdp5), and switch
everything over to instead use the new enable/disable hooks. It doesn't
really change too much, despite the code motion. What used to be in the
encoder/crtc dpms() fxns is split out into enable/disable.
We should be able to drop our own enable-state tracking, as the atomic
helpers should do this for us. But keeping that for the short term for
extra debugging as atomic stablizes.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Only the legacy helpers use these entry points. Don't populate them
with transitional helpers, since that just makes things more confusing.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[robclark: reword commit msg]
Signed-off-by: Rob Clark <robdclark@gmail.com>
We had _power_up(), but drivers also need to be able to power down.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Add two more Fujitsu LIFEBOOK models that also ship with the Elantech
touchpad and don't work with crc_disabled to the quirk list.
Signed-off-by: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Some devices are not fast enough to differentiate between a fast-moving
contact and a new contact. This problem cannot be fully resolved because
information is truly missing, but it is possible to safe-guard against
obvious mistakes by restricting movement with a maximum displacement.
The new problem formulation for dmax > 0 cannot benefit from the speedup
for positive definite matrices, but since the convergence is faster, the
result is about the same. For a handful of contacts, the latency difference
is truly negligible.
Suggested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Henrik Rydberg <rydberg@bitmath.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is a I2C driver, so it's wrong to use platform prefix for the
modalias. We have all needed i2c aliases coming form MODULE_DEVICE_TABLE,
so let's remove the wrong and unneeded drv2667-haptics modalias.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is a I2C driver, so it's wrong to use platform prefix for the
modalias. We have all needed i2c aliases coming form MODULE_DEVICE_TABLE,
so let's remove the wrong and unneeded drv260x-haptics modalias.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This is a I2C driver, so it's wrong to use platform prefix for the
modalias. We have all needed i2c aliases coming form MODULE_DEVICE_TABLE,
so let's remove the wrong and unneeded cap11xx modalias.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Daniel Mack <linux@zonque.org>
Reviewed-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* Instantiate GIC from C board code in legacy builds on r8a7790 and r8a73a4
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Merge tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Merge "Third Round of Renesas ARM Based SoC Fixes for v3.19" from Simon Horman:
* Instantiate GIC from C board code in legacy builds on r8a7790 and r8a73a4
* tag 'renesas-soc-fixes3-for-v3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds
ARM: shmobile: r8a73a4: Instantiate GIC from C board code in legacy builds
Signed-off-by: Olof Johansson <olof@lixom.net>
Use the chanel hw_value and not the center frequency when
building channel array for scan_config_cmd.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Enable EBS on one shot scans if supported by FW.
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
When iwl_mvm_power_update_mac() is called, we have already added the
mac context, so if this call fails we should remove the mac.
CC: <stable@vger.kernel.org> [3.15+]
Fixes: commit e5e7aa8e25 ('iwlwifi: mvm: refactor power code')
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Last EBS status wasn't set to success in the initialization, which
caused the first scan to be without EBS. Fix that.
When EBS is not enabled by the driver, the FW still sends ebs_status success,
which can override EBS failure state. Consider only EBS failures, to avoid
such override. Last_ebs_success is set back to true upon disconnection.
Last_ebs_success wasn't set in umac scan abort flow, fix that too.
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Different queue can have different behavior. While it can be
unacceptable for a certain queue to be stuck for 2 seconds
(e.g. the command queue), it can happen that another queue
will stay stuck for even longer (a queue servicing a power
saving client in GO).
The op_mode can even make the timeout be a function of the
listen interval.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
