Now that we can rely on the enable-method, remove the smp field declaration
from A31 machine.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
CPU_METHOD_OF_DECLARE allows to bind the smp_ops to a set of cpus through the
enable-method property, instead of relying on the machine to define it. Switch
to it to get closer to an empty machine.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Allwinner sunxi support has been split into the various SoCs in Kconfig.
Adapt the new symbols for the device trees.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Stop using BROKEN as an alternative dependency for the purpose of
build testing the firewire core. The newly introduced COMPILE_TEST is
better suited for that purpose.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Use regulator API rdev_get_id() to access id of regulator.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
S2MPS11 supports enabling/disabling ramp delay only for buck[2346].
Other bucks have ramp delay enabled always.
However the bit shift for enabling buck6 ramp delay in register is equal
to 0. When ramp delay was set for the bucks unsupporting enable/disable
(buck[15789] and buck10), the ramp delay for buck6 was also enabled.
Fixes: b96244fad9 ("regulator: s2mps11: Don't check enable_shift before setting enable ramp rate")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
S2MPA01 supports enabling/disabling ramp delay only for buck[1234].
Other bucks have ramp delay enabled always.
However the bit shift for enabling buck4 ramp delay in register is equal
to 0. When ramp delay was set for the bucks unsupporting enable/disable
(buck[56789] and buck10), the ramp delay for buck4 was also enabled.
Fixes: f7b1a8dc1c ("regulator: s2mpa01: Don't check enable_shift before setting enable ramp rate")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This patch adds support to STiH407 SoC.
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Bjørn Mork says:
====================
cdc_ncm: add buffer tuning and stats using ethtool
Quoting the previous description of this series (skip to the
changelog below if you only want a summary of the changes):
"I have got quite a few reports from frustrated users of OpenWRT
hosts trying to use some powerful LTE modem, but not achieving
full speed. This is typically caused by a combination of
big buffers and little memory, giving in allocation errors and
bad performance as a result.
This series is an attempt to let users adjust the size of these
buffers without having to rebuild the driver.
Patches 1 - 4 are mostly rearranging existing code, in preparing
for the dynamic buffer size changes.
Patch 5 adds userspace control (ab)using the ethtool coalescing
API. This isn't a perfect match, which is the main reason why I
post this series as a RFC.
Patch 6 is an unrelated framing optimization, reducing the
overhead quite a bit and allowing for better use of smaller
buffers.
Patch 7 changes the way we calculate frame padding cutoff. The
problem with big buffers is made much worse by the current padding
strategy where zero padding often can account for more than 90% of
the frames.
Patch 8 add some counters giving some insight into how well the
NCM/MBIM protocol works, supporting further tuning.
Patch 9 reduce the initial maximum buffer size from 32kB to 16kB
in an attempt to make the default better suit all. It is still
possible to tune this up again to the old fixed max, using the
new tuning knobs.
I must admit that I had higher hopes for this series before I
tested it on my own modems. One really unexpected result was
that one of the MBIM modems accepted the new rx buffer size we
set, but happily continued sending buffers of the same size as
before. Needless to say: This did not work very well...
So don't really expect to be able to use any values with any
given device. Firmware implementations are still... I don't
think I have words suitable for a public mailing list.
But I am hoping this will help the many users who have had success
rebuilding the driver with lower fixed limits.
Please test and/or comment!"
Changes:
** RFC -> v1 **
Patch 10 - a follow-up to a comment Joe Perches made in November
2013. I don't always forget :-)
Patch 11 - removes the redundant "connected" driver state, and the
associated .check_connect callbacks.
** v1 -> v2 **
Patch 1 - Better handling of minium rx buffer size, based on feedback
from Oliver Neukum and Enrico Mioso
Patch 5 - fixed locking around timer interval update
Patch 9 - fixed whitespace error
Patch 12 - new fix related to the tuneable tx timer
...and spelling fixes all over the commit messages. I have finally
added a spelling hook, which I'm sure may of you will appreciate :-)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We can end up with a freshly allocated tx_curr_skb with no frames
in it. In this case it does not make any sense to start the timer.
This avoids the timer periodically trying to start tx when there
is nothing in the queue.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Calling netif_carrier_{on,off} is sufficient. There is no need
to duplicate the carrier state in a driver specific flag.
Acked-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lots of devices request much larger buffers than reasonable. This
cause real problems for users of hosts with limited resources.
Reducing the default buffer size to 16kB for such devices is
a reasonable trade-off between allowing them to aggregate traffic
and avoiding memory exhaustion on resource restrained hosts.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
To have an idea of the effects of the protocol coalescing
it's useful to have some counters showing the different
aspects.
Due to the asymmetrical usbnet interface the netdev
rx_bytes counter has been counting real received payload,
while the tx_bytes counter has included the NCM/MBIM
framing overhead. This overhead can be many times the
payload because of the aggressive padding strategy of
this driver, and will vary a lot depending on device
and traffic.
With very few exceptions, users are only interested in
the payload size. Having an somewhat accurate payload
byte counter is particularly important for mobile
broadband devices, which many NCM devices and of course
all MBIM devices are. Users and userspace applications
will use this counter to monitor account quotas.
Having protocol specific counters for the overhead, we are
now able to correct the tx_bytes netdev counter so that
it shows the real payload
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
We pad frames larger than X to maximum size for devices which
don't need a ZLP after maximum sized frames. This allows the
device to optimize its transfers for one fixed buffer size.
X was arbitrarily set at 512 bytes regardless of real buffer
maximum, causing extreme overheads due to excessive padding of
larger tx buffers. Limit the padding to at most 3 full USB
packets, still allowing the overhead to payload ratio of 3/1.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Many newer NCM and MBIM devices will request a maximum tx
datagram count which is much smaller than our hard-coded
absolute max. We can reduce the overhead without sacrificing
any of the simplicity for these devices, by simply using the
true negotiated count in when calculated the maximum NTH and
NDP header sizes.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Datagram coalescing is an integral part of the NCM and MBIM
protocols, intended to reduce the interrupt load primarily
on the device end of the USB link. As with all coalescing
solutions, there is a trade-off between buffering and
interrupts.
The current defaults are based on the assumption that device
side buffers should be the limiting factor. However, many
modern high speed LTE modems suffers from buffer-bloat,
making this assumption fail. This results in sub-optimal
performance due to excessive coalescing. And in cases where
such modems are connected to cheap embedded hosts there is
often severe buffer allocation issues, giving very noticeable
performance degradation .
A start on improving this is going from build time hard
coded limits to per device user configurable limits. The
ethtool coalescing API was selected as user interface
because, although the tuned values are buffer sizes, these
settings directly control datagram coalescing.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Finish the rx_max/tx_max setup by flushing buffers and
informing usbnet about the changes. This way, the settings
can be modified while the netdev is up and running.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that we have split out the part of the device setup
which MUST be done with the data interface in altsetting 0,
we can delay the rest of the initialization. This allows us
to move some of post-init buffer size config from bind to
the appropriate setup function.
The purpose of this refactoring is to collect all code
adjusting the rx_max and tx_max buffers in one place, so
that it is easier to call it from multiple call sites.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Split the parts of setup dealing with device initialization from
parts just setting defaults for attributes which might be
changed after initialization.
Some commands of the device initialization are only allowed when
the data interface is in its disabled altsetting, so we must
separate them out of we are to allow rerunning parts of setup.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Split out the part of setup dealing with updating the rx_max
and tx_max buffer sizes so that this code can be reused for
dynamically updating the limits.
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich says:
====================
Fixed stacked vlan usage on top of bonds
Bonding device driver now support q-in-q on top for bonds. There are
a few issues here though.
First, when arp monitoring is used, bonding driver will not correctly
tag traffic if the source of the arp device was configured on top of
q-in-q. It may also incorrectly pick the wrong vlan id if the ordering
of that upper devices isn't as expected (there is no guarntee on ordering).
Second, the alb/tlb may use what would be considered 'inner' vlans in
its learning announcements, as it simply announces all vlans configured
on top of the bond without regard for encapsulation/stacking.
This series fixes the above 2 issues. This series also depends on the
functionality introduced in
http://patchwork.ozlabs.org/patch/349766/
Since v1:
- Changed how patch1 verifies the device path. We no longer use the
_all_upper version of the function. We find the path and if it was
found, then collect the vlan information.
- Use the constant to devine maximum vlan nest level support on top
of bonding. This can be changed if 2 is too low.
- Inlude patch2 into the series.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
ALB/TLB learning packets use all vlans configured on top
of the bond. This ends up being incorrect if we have a stack
of vlans on top of the bond. ALB/TLB should only use
first level/outer most vlans in its announcements.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prior to commit fbd929f2dc
bonding: support QinQ for bond arp interval
the arp monitoring code allowed for proper detection of devices
stacked on top of vlans. Since the above commit, the
code can still detect a device stacked on top of single
vlan, but not a device stacked on top of Q-in-Q configuration.
The search will only set the inner vlan tag if the route
device is the vlan device. However, this is not always the
case, as it is possible to extend the stacked configuration.
With this patch it is possible to provision devices on
top Q-in-Q vlan configuration that should be used as
a source of ARP monitoring information.
For example:
ip link add link bond0 vlan10 type vlan proto 802.1q id 10
ip link add link vlan10 vlan100 type vlan proto 802.1q id 100
ip link add link vlan100 type macvlan
Note: This patch limites the number of stacked VLANs to 2,
just like before. The original, however had another issue
in that if we had more then 2 levels of VLANs, we would end
up generating incorrectly tagged traffic. This is no longer
possible.
Fixes: fbd929f2dc (bonding: support QinQ for bond arp interval)
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@redhat.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Ding Tianhong <dingtianhong@huawei.com>
CC: Patric McHardy <kaber@trash.net>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit ee1de406ba ("random: simplify accounting logic") simplified
things too much, in that it allows the following to trigger an
overflow that results in a BUG_ON crash:
dd if=/dev/urandom of=/dev/zero bs=67108707 count=1
Thanks to Peter Zihlstra for discovering the crash, and Hannes
Frederic for analyizing the root cause.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Greg Price <price@mit.edu>
Vlad Yasevich says:
====================
Fix lockdep issues with stacked devices
Recent commit dc8eaaa006
vlan: Fix lockdep warning when vlan dev handle notification
attempted to solve lockdep issues with vlans where multiple
vlans were stacked. However, the code does not work correctly
when the vlan stack is interspersed with other devices in between
the vlans. Additionally, similar lockdep issues show up with other
devices.
This series provides a generic way to solve these issue for any
devices that can be stacked. It also addresses the concern for
vlan and macvlan devices. I am not sure whether it makes sense
to do so for other types like team, vxlan, and bond.
Thanks
-vlad
Since v2:
- Remove rcu variants from patch1, since that function is called
only under rtnl.
- Fix whitespace problems reported by checkpatch
Since v1:
- Fixed up a goofed-up rebase.
* is_vlan_dev() should be bool and that change belongs in patch3.
* patch4 should not have any vlan changes in it.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit dc8eaaa006.
vlan: Fix lockdep warning when vlan dev handle notification
Instead we use the new new API to find the lock subclass of
our vlan device. This way we can support configurations where
vlans are interspersed with other devices:
bond -> vlan -> macvlan -> vlan
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently netif_addr_lock_nested assumes that there can be only
a single nesting level between 2 devices. However, if we
have multiple devices of the same type stacked, this fails.
For example:
eth0 <-- vlan0.10 <-- vlan0.10.20
A more complicated configuration may stack more then one type of
device in different order.
Ex:
eth0 <-- vlan0.10 <-- macvlan0 <-- vlan1.10.20 <-- macvlan1
This patch adds an ndo_* function that allows each stackable
device to report its nesting level. If the device doesn't
provide this function default subclass of 1 is used.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Multiple devices in the kernel can be stacked/nested and they
need to know their nesting level for the purposes of lockdep.
This patch provides a generic function that determines a nesting
level of a particular device by its type (ex: vlan, macvlan, etc).
We only care about nesting of the same type of devices.
For example:
eth0 <- vlan0.10 <- macvlan0 <- vlan1.20
The nesting level of vlan1.20 would be 1, since there is another vlan
in the stack under it.
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that the DTS file r7s72100-genmai.dts can be used with
board-genmai.c and board-genmai-reference.c, proceed with removing
r7s72100-genmai-reference.dts.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Let the multiplatform Genmai support boot with the unified DTS.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Copy the device nodes from Genmai reference into the Genmai device tree
file. This will allow us to use a single DTS file regardless of kernel
configuration. In case of legacy C board code the device nodes may or
may not be used, but in the multiplatform case all the DT device nodes
will be used.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
genmai-reference is now only built for multiplatform which means that
CCF comes with the package. Remove unused legacy code ifdefs to clean up
the code.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Now that r7s72100 has CCF support, remove the legacy Genmai reference
Kconfig bits for the non-multiplatform case.
Starting from this commit Genmai board support is always enabled via
CONFIG_MACH_GENMAI, and CONFIG_ARCH_MULTIPLATFORM is used to select
between board-genmai.c and board-genmai-reference.c
The file board-genmai-reference.c can no longer be used together with
the legacy sh-clk clock framework, instead CCF is used.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This patch fixes the following issue:
If DSDT is customized, no local DSDT copy is needed.
References: https://bugzilla.kernel.org/show_bug.cgi?id=69711
Signed-off-by: Enrico Etxe Arte <goitizena.generoa@gmail.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Cc: 2.6.35+ <stable@vger.kernel.org> # 2.6.35+
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
When consolidating the msm8660 GCC probe code I forgot to keep
around these temporary clock registrations. Put them back so the
clock tree is not entirely orphaned.
Fixes: 49fc825f0c (clk: qcom: Consolidate common probe code)
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Tegra has implemented an unnecessary wrapper over tegra_update_cpu_speed(), i.e.
tegra_target(), which wasn't doing anything apart of calling
tegra_update_cpu_speed(). Get rid of that and use tegra_target() directly.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There is no need to include delay.h.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This driver is using devres managed calls incorrectly, giving the cpu0
device as first parameter instead of the cpufreq platform device.
This results in resources not being freed if the cpufreq platform device
is unbound, for example if probing has to be deferred for a missing
regulator.
Supporting probe deferral properly is a prerequisite to enabling the
internal LDO bypass on i.MX6 and regulating the CPU voltage with an
external regulator.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Suppress the following checkpatch.pl warnings:
- WARNING: Prefer pr_err(... to printk(KERN_ERR ...
- WARNING: Prefer pr_info(... to printk(KERN_INFO ...
- WARNING: Prefer pr_warn(... to printk(KERN_WARNING ...
- WARNING: quoted string split across lines
- WARNING: please, no spaces at the start of a line
Also, define the pr_fmt macro instead of PFX for the module name.
Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
powernv_cpufreq_get() is only referenced in this file.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org> on V2.
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- localize GPIO header in mach-at91 directory
- big update on the CCF front with main and slow clocks
- a cleanup of ADC and touchscreen driver with unification on IIO and
removal of old driver
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Merge tag 'at91-cleanup' of git://github.com/at91linux/linux-at91 into next/soc
Merge "at91: cleanup for 3.16 #1" from Nicolas Ferre:
First cleanup series for 3.15
- localize GPIO header in mach-at91 directory
- big update on the CCF front with main and slow clocks
- a cleanup of ADC and touchscreen driver with unification on IIO and
removal of old driver
[olof: Most of this branch is new code, not cleanups, so I'm merging this into
the SoC branch in spite of the branch name]
* tag 'at91-cleanup' of git://github.com/at91linux/linux-at91: (28 commits)
ARM: at91/dt: at91-cosino_mega2560 remove useless tsadcc node
ARM: at91: remove atmel_tsadcc platform_data
Input: atmel_tsadcc: remove driver
ARM: at91: remove atmel_tsadcc from sama5_defconfig
ARM: at91: sam9rl: switch from atmel_tsadcc to at91_adc
ARM: at91: sam9g45: switch from atmel_tsadcc to at91_adc
ARM: at91: sam9rlek add touchscreen support through at91_adc
ARM: at91: sam9rl: add at91_adc to support adc and touchscreen
iio: adc: at91: add sam9rl support
iio: adc: at91: remove unused include from include/mach
ARM: at91: sam9m10g45ek: Add touchscreen support through at91_adc
iio: adc: at91_adc: Add support for touchscreens without TSMR
iio: adc: at91: cleanup platform_data
ARM: at91: sam9260: remove unused platform_data
ARM: at91: sam9g45: remove unused platform_data
ARM: at91/dt: define sam9rlek crystal frequencies
ARM: at91/dt: move at91sam9rl SoC to the new slow/main clock models
ARM: at91/dt: define main xtal frequency of the at91sam9261ek board
ARM: at91/dt: move at91sam9261 SoC to the new main clock model
ARM: at91/dt: add xtal frequencies to sama5d3 xplained board
...
Signed-off-by: Olof Johansson <olof@lixom.net>
There are arm64 big.LITTLE systems so enable the big.LITTLE cpufreq driver.
While IKS is not available for these systems the driver is still useful
since it manages clusters with shared frequencies which is the common case
for these systems.
Long term combining the cpufreq-cpu0 and big.LITTLE drivers may be a
more sensible option but that is substantially more complex especially
in the case of IKS.
Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro
is deprecated.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
return -EFAULT instead of the value returned by copy_from_user()
Signed-off-by: Vitaly Osipov <vitaly.osipov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On 64 bit systems there is a 4 byte hole after the last member of the
struct. We should clear it to avoid disclosing stack information.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
