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Replaced calls to kmalloc followed by strcpy with a sincle call to
kstrdup. Patch found using coccinelle.
Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move the counter for non-AMPDU frames to mvm. It is needed
for the drain flow which happens once the ieee80211_sta has
been freed, so keeping it in iwl_mvm_sta which is embed into
ieee80211_sta is not a good idea.
Also, since its purpose it to remove the STA in the fw only
after all the frames for this station have exited the shared
Tx queues, we need to decrement it in the reclaim flow. This
flow can happen after ieee80211_sta has been removed, which
means that we have no iwl_mvm_sta there. So we can't know
what is the vif type. Hence, we know audit these frames for
all the vif types.
In order to avoid spawning sta_drained_wk all the time, we
now check that we are in a flow in which draining might
happen - only when mvmsta is NULL. This is better than
previous code that would spawn sta_drained_wk all the time
in AP mode.
Cc: stable@vger.kernel.org [3.9]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In the normal flow first MAC_CONTEXT_CMD for particular interface is
never sent while associated. The exception is fw restart flow when
resuming from suspend when WoWLAN is enabled. In this case successive
"add" and "modify" MAC_CONTEXT_CMD commands may be sent with assoc flag
set what cause FW mal functioning. To prevent this never set assoc flag
in MAC_CONTEXT_CMD with action "add".
Cc: stable@vger.kernel.org
Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Without this command, the firmware will filter out all the
multicast frames. Let them all in as for now. Later we will
want to optimize this to save power.
Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The FW AUX framework does not handle well cases where time events
fail to be scheduled (and as a result issues assert 0x3330). Until
a proper fix is in place, WA this by always setting the scan type to
SCAN_TYPE_FORCED.
Cc: stable@vger.kernel.org
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The code sending the current WoWLAN TCP wakeup settings in
nl80211_send_wowlan_tcp() is not closing the nested attribute,
thus causing the parser to get confused on the receiver side
in userspace (iw). Fix this.
Cc: stable@vger.kernel.org [3.9]
Reported-by: Deepak Arora <deepakx.arora@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Even if the frame isn't transmitted to the AP, we need to
report it to cfg80211 so the state there can be updated
correctly.
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When the interface goes down, there's no need to call
cfg80211_mlme_down() after __cfg80211_disconnect() as
the latter will call the former (if appropriate.)
Also, in __cfg80211_disconnect(), if the cfg80211 SME
isn't used, __cfg80211_disconnected() may still need
to be called (depending on the current state) so that
the SME state gets cleared.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In AP mode, ignore frames with mis-matched BSSID that aren't
multicast or sent to the correct destination. This fixes
reporting public action frames to userspace multiple times
on multiple virtual AP interfaces.
Cc: stable@vger.kernel.org
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Adding the attributes fixes an issue with P2P Device not
working properly for management frame TX.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
ieee80211_get_tkip_p2k() may be called with interrupts
disabled, so spin_unlock_bh() isn't safe and leads to
warnings. Since it's always called with BHs disabled
already, just use spin_lock().
Cc: stable@vger.kernel.org
Reported-by: Milan Kocian <milon@wq.cz>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Document rx vs tx status concurrency requirements.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When an HT AP is advertising channel switch in a beacon, it
doesn't (and shouldn't, according to 802.11-2012 Table 8-20)
include a secondary channel offset element. The only possible
interpretation is that the previous secondary channel offset
remains valid, so use that when switching channel based only
on beacon information.
VHT requires the Wide Bandwidth Channel Switch subelement to
be present in the Channel Switch Wrapper element, so the code
for that is probably ok (see 802.11ac Draft 4, 8.4.2.165.)
Reported-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Since commit 12e7f51702,
IEEE80211_SDATA_DISCONNECT_RESUME no longer worked as
it would simply never be tested. Restore a bit of the
code removed there and in 9b7d72c104
to make it work again.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If the device reports a non-wireless wakeup reason, the
tracing code crashes trying to dereference a NULL pointer.
Fix this by checking the pointer on all accesses and also
add a non_wireless tag to the event.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Not registering a platform_driver would make us access garbage
when the platform callbacks under driver_register() kicks in.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Tested-By: Martin Pitt <martin.pitt@ubuntu.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If rfkill_register() fails in wiphy_register() the struct device
is unregistered but everything else isn't (regulatory, debugfs)
and we even leave the wiphy instance on all internal lists even
though it will likely be freed soon, which is clearly a problem.
Fix this by cleaning up properly.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Pull workqueue fixes from Tejun Heo:
"Three more workqueue regression fixes.
- Fix unbalanced unlock in trylock failure path of manage_workers().
This shouldn't happen often in the wild but is possible.
- While making schedule_work() and friends inline, they become
unavailable to !GPL modules. Allow !GPL modules to access basic
stuff - system_wq and queue_*work_on() - so that schedule_work()
and friends can be used.
- During boot, the unbound NUMA support code allocates a cpumask for
each possible node using alloc_cpumask_var_node(), which ends up
trying to allocate node-specific memory even for offline nodes
triggering BUG in the memory alloc code. Use NUMA_NO_NODE for
offline nodes."
* 'for-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: don't perform NUMA-aware allocations on offline nodes in wq_numa_init()
workqueue: Make schedule_work() available again to non GPL modules
workqueue: correct handling of the pool spin_lock
Pull RCU fixes from Paul McKenney:
"A couple of fixes for RCU regressions:
- A boneheaded boolean-logic bug that resulted in excessive delays on
boot, hibernation and suspend that was reported by Borislav Petkov,
Bjørn Mork, and Joerg Roedel. The fix inserts a single "!".
- A fix for a boot-time splat due to allocating from bootmem too late
in boot, fix courtesy of Sasha Levin with additional help from
Yinghai Lu."
* 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
rcu: Don't allocate bootmem from rcu_init()
rcu: Fix comparison sense in rcu_needs_cpu()
argv_split(empty_or_all_spaces) happily succeeds, it simply returns
argc == 0 and argv[0] == NULL. Change call_usermodehelper_exec() to
check sub_info->path != NULL to avoid the crash.
This is the minimal fix, todo:
- perhaps we should change argv_split() to return NULL or change the
callers.
- kill or justify ->path[0] check
- narrow the scope of helper_lock()
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-By: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit d532f3d267.
The original commit has several problems:
1) Doesn't work with 64-bit kernels.
2) Calls TLBMISS_HANDLER_SETUP() before the code is generated.
3) Calls TLBMISS_HANDLER_SETUP() twice in per_cpu_trap_init() when
only one call is needed.
[ralf@linux-mips.org: Also revert the bits of the ASID patch which were
hidden in the KVM merge.]
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: "Steven J. Hill" <Steven.Hill@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/5242/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Loading be16 values from byte buffers may cause unaligned accesses, so use
get_unaligned_be16() to avoid problems on architectures that do not support
these.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Before commit 5c29e47e6a ("mfd: cros_ec_spi:
Warnings fix"), 64-bit compiles gave the following warnings:
drivers/mfd/cros_ec_spi.c: In function 'cros_ec_spi_receive_response':
drivers/mfd/cros_ec_spi.c:123:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long int' [-Wformat]
drivers/mfd/cros_ec_spi.c:157:3: warning: format '%d' expects argument of type 'int', but argument 6 has type 'long int' [-Wformat]
drivers/mfd/cros_ec_spi.c:181:2: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long int' [-Wformat]
After that commit, 32-bit compiles give:
drivers/mfd/cros_ec_spi.c: In function ‘cros_ec_spi_receive_response’:
drivers/mfd/cros_ec_spi.c:123: warning: format ‘%ld’ expects type ‘long int’, but argument 4 has type ‘int’
drivers/mfd/cros_ec_spi.c:157: warning: format ‘%ld’ expects type ‘long int’, but argument 6 has type ‘int’
drivers/mfd/cros_ec_spi.c:181: warning: format ‘%ld’ expects type ‘long int’, but argument 4 has type ‘int’
Use %z to format pointer differences to kill the warnings on both 32-bit
and 64-bit.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This target assumes that tcph->doff is well-formed, that may be well
not the case. Add extra sanity checkings to avoid possible crash due
to read/write out of the real packet boundary. After this patch, the
default action on malformed TCP packets is to drop them. Moreover,
fragments are skipped.
Reported-by: Rafal Kupka <rkupka@telemetry.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Since try_module_get() returns false( = 0) when it fails to
pindown a module, event_enable_func() returns 0 which means
"succeed". This can cause a kernel panic when the entry
is removed, because the event is already released.
This fixes the bug by returning -EBUSY, because the reason
why it fails is that the module is being removed at that time.
Link: http://lkml.kernel.org/r/20130516114848.13508.97899.stgit@mhiramat-M0-7522
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tom Zanussi <tom.zanussi@intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Pull target fixes from Nicholas Bellinger:
"A handful of fixes + minor changes this time around, along with one
important >= v3.9 regression fix for IBLOCK backends. The highlights
include:
- Use FD_MAX_SECTORS in FILEIO for block_device as
well as files (agrover)
- Fix processing of out-of-order CmdSNs with
iSBD driver (shlomo)
- Close long-standing target_put_sess_cmd() vs.
core_tmr_abort_task() race with the addition of
kref_put_spinlock_irqsave() (joern + greg-kh)
- Fix IBLOCK WCE=1 + DPOFUA=1 backend WRITE
regression in >= v3.9 (nab + bootc)
Note these four patches are CC'ed to stable.
Also, there is still some work left to be done on the active I/O
shutdown path in target_wait_for_sess_cmds() used by tcm_qla2xxx +
ib_isert fabrics that is still being discussed on the list, and will
hopefully be resolved soon."
* 'queue' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target: close target_put_sess_cmd() vs. core_tmr_abort_task() race
target: removed unused transport_state flag
target/iblock: Fix WCE=1 + DPOFUA=1 backend WRITE regression
MAINTAINERS: Update target git tree URL
iscsi-target: Fix typos in RDMAEXTENSIONS macro usage
target/rd: Add ramdisk bit for NULLIO operation
iscsi-target: Fix processing of OOO commands
iscsi-target: Make buf param of iscsit_do_crypto_hash_buf() const void *
iscsi-target: Fix NULL pointer dereference in iscsit_send_reject
target: Have dev/enable show if TCM device is configured
target: Use FD_MAX_SECTORS/FD_BLOCKSIZE for blockdevs using fileio
target: Remove unused struct members in se_dev_entry
CONFIG_MFD_CORE must be selected for TPS65912 to properly buid.
Otherwise it results in a link error:
drivers/built-in.o: In function `tps65912_device_init':
(.text+0x587e4): undefined reference to `mfd_add_devices'
drivers/built-in.o: In function `tps65912_device_init':
(.text+0x5884c): undefined reference to `mfd_remove_devices'
drivers/built-in.o: In function `tps65912_device_exit':
(.text+0x58878): undefined reference to `mfd_remove_devices'
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Commit 6501320311 dropped the rpm spec as a
prerequisite for the binrpm-pkg target but forgot to update $< usage,
which causes the rule to break.
This commit fixes that by replacing $< with the spec name.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Either one or a combination of commits 81e5d86
"Register i2c devices from device-tree" and 3a3dd01
"Improve detection of devices from device-tree" broke sound on
PowerBook6,5 machines.
Fix it by adding an entry to the new driver to match PowerBook6,5
machines.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A few small driver-specific fixes, none of them especially crippling.
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Merge tag 'asoc-v3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.10
A few small driver-specific fixes, none of them especially crippling.
When an inactive path is powered down with spec->power_down_unused
flag, we should check the activity of each widget in the path whether
it's still referred from any active path.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
include/linux/brcmphy.h is currently not protected against double
inclusion, add ifdefs guard to fix that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 54309fa6 ("net: fec: fix kernel oops when plug/unplug cable many times")
introduced the following 'if' block in the beginning of fec_start():
if (netif_running(ndev)) {
netif_device_detach(ndev);
napi_disable(&fep->napi);
netif_stop_queue(ndev);
netif_tx_lock_bh(ndev);
}
Then later in the end of fec_restart() there is another block that calls the
opposite of each one of these functions.
The correct approach would be to also call them with in the reverse order, so
that we have as result:
if (netif_running(ndev)) {
netif_tx_unlock_bh(ndev);
netif_wake_queue(ndev);
napi_enable(&fep->napi);
netif_device_attach(ndev);
}
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bug here is this code from ipg_nic_hard_start_xmit():
txfd->tfc &= cpu_to_le64(~IPG_TFC_TFDDONE);
IPG_TFC_TFDDONE is 0x0000000080000000 so it's an unsigned int. The
negated value is 0x7fffffff but 0xffffffff7fffffff was intended.
The other values in this file don't need to be changed but I did it for
consistency.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Also, Masami Hiramatsu fixed up some minor bugs that were discovered
by sparse.
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Merge tag 'trace-fixes-v3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"This includes a fix to a memory leak when adding filters to traces.
Also, Masami Hiramatsu fixed up some minor bugs that were discovered
by sparse."
* tag 'trace-fixes-v3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing/kprobes: Make print_*probe_event static
tracing/kprobes: Fix a sparse warning for incorrect type in assignment
tracing/kprobes: Use rcu_dereference_raw for tp->files
tracing: Fix leaks of filter preds
Pull x86 fixes from Thomas Gleixner:
- Fix for a CPU hot-add deadlock in microcode update code
- Fix for idle consolidation fallout
- Documentation update for initial kernel direct mapping
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Add missing comments for initial kernel direct mapping
x86/microcode: Add local mutex to fix physical CPU hot-add deadlock
x86: Fix idle consolidation fallout
Pull perf fixes from Thomas Gleixner:
- Fix for a task exit cleanup race caused by a missing a preempt
disable
- Cleanup of the event notification functions with a massive reduction
of duplicated code
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Factor out auxiliary events notification
perf: Fix EXIT event notification
Pull timer fixes from Thomas Gleixner:
- Cure for not using zalloc in the first place, which leads to random
crashes with CPUMASK_OFF_STACK.
- Revert a user space visible change which broke udev
- Add a missing cpu_online early return introduced by the new full
dyntick conversions
- Plug a long standing race in the timer wheel cpu hotplug code.
Sigh...
- Cleanup NOHZ per cpu data on cpu down to prevent stale data on cpu
up.
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
time: Revert ALWAYS_USE_PERSISTENT_CLOCK compile time optimizaitons
timer: Don't reinitialize the cpu base lock during CPU_UP_PREPARE
tick: Don't invoke tick_nohz_stop_sched_tick() if the cpu is offline
tick: Cleanup NOHZ per cpu data on cpu down
tick: Use zalloc_cpumask_var for allocating offstack cpumasks
Pull core fixes from Thomas Gleixner:
- Two fixlets for the fallout of the generic idle task conversion
- Documentation update
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
rcu/idle: Wrap cpu-idle poll mode within rcu_idle_enter/exit
idle: Fix hlt/nohlt command-line handling in new generic idle
kthread: Document ways of reducing OS jitter due to per-CPU kthreads
Pull ARM fixes from Russell King:
"A small number of fixes for stuff from the last merge window, and in
one case (IRQ time accounting) the previous merge window."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7720/1: ARM v6/v7 cmpxchg64 shouldn't clear upper 32 bits of the old/new value
ARM: 7715/1: MCPM: adapt to GIC changes after upstream merge
ARM: 7714/1: mmc: mmci: Ensure return value of regulator_enable() is checked
ARM: 7712/1: Remove trailing whitespace in arch/arm/Makefile
ARM: 7711/1: dove: fix Dove cpu type from V7 to PJ4
ARM: finally enable IRQ time accounting config
Pull Ceph fixes from Sage Weil:
"Yes, this is a much larger pull than I would like after -rc1. There
are a few things included:
- a few fixes for leaks and incorrect assertions
- a few patches fixing behavior when mapped images are resized
- handling for cloned/layered images that are flattened out from
underneath the client
The last bit was non-trivial, and there is some code movement and
associated cleanup mixed in. This was ready and was meant to go in
last week but I missed the boat on Friday. My only excuse is that I
was waiting for an all clear from the testing and there were many
other shiny things to distract me.
Strictly speaking, handling the flatten case isn't a regression and
could wait, so if you like we can try to pull the series apart, but
Alex and I would much prefer to have it all in as it is a case real
users will hit with 3.10."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (33 commits)
rbd: re-submit flattened write request (part 2)
rbd: re-submit write request for flattened clone
rbd: re-submit read request for flattened clone
rbd: detect when clone image is flattened
rbd: reference count parent requests
rbd: define parent image request routines
rbd: define rbd_dev_unparent()
rbd: don't release write request until necessary
rbd: get parent info on refresh
rbd: ignore zero-overlap parent
rbd: support reading parent page data for writes
rbd: fix parent request size assumption
libceph: init sent and completed when starting
rbd: kill rbd_img_request_get()
rbd: only set up watch for mapped images
rbd: set mapping read-only flag in rbd_add()
rbd: support reading parent page data
rbd: fix an incorrect assertion condition
rbd: define rbd_dev_v2_header_info()
rbd: get rid of trivial v1 header wrappers
...
The file permissions of cpufreq per-cpu sysfs files are not preserved
across suspend/resume because we internally go through the CPU
Hotplug path which reinitializes the file permissions on CPU online.
But the user is not supposed to know that we are using CPU hotplug
internally within suspend/resume (IOW, the kernel should not silently
wreck the user-set file permissions across a suspend cycle).
Therefore, we need to preserve the file permissions as they are
across suspend/resume.
The simplest way to achieve that is to just not touch the sysfs files
at all - ie., just ignore the CPU hotplug notifications in the
suspend/resume path (_FROZEN) in the cpufreq hotplug callback.
Reported-by: Robert Jarzmik <robert.jarzmik@intel.com>
Reported-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
