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GIT 91aea5e0544dafdc6f0b4bab44b4902c2a56febf
commit 265d426d7470d53e900379960eef5b4482125089
Author: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Fri Sep 30 16:42:19 2016 -0700
Input: elan_i2c - fix return tests of i2c_smbus_read_block_data()
i2c_smbus_read_block_data() returns negative errno else the number of
data bytes in the slave's response.
Checking for error not null means the function always fails if the device
answers properly.
So given that we read 3 bytes and access those, better check that we
actually read those 3 bytes.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit 979987ded3a5ae1fb60ef751bdf185c502d70590
Author: Arnd Bergmann <arnd@arndb.de>
Date: Fri Sep 30 15:36:54 2016 -0700
Input: ektf2127 - mark PM functions as __maybe_unused
The newly added ektf2127 driver uses the SIMPLE_DEV_PM_OPS macro
to conditionally refer to the resume/suspend functions, which
causes a warning when CONFIG_PM_SLEEP is disabled:
drivers/input/touchscreen/ektf2127.c:168:12: error: 'ektf2127_resume' defined but not used [-Werror=unused-function]
drivers/input/touchscreen/ektf2127.c:156:12: error: 'ektf2127_suspend' defined but not used [-Werror=unused-function]
We could either put these functions inside of an #ifdef or
add __maybe_unused annotations. This uses the second approach,
which is generally more foolproof.
Fixes: 9ca5bf5029b6 ("Input: add support for Elan eKTF2127 touchscreen controller")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit 348b9b1192144e13b779f8f9be301d492bebaff2
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon Oct 3 13:45:16 2016 +0100
drm/i915: Use correct index for backtracking HUNG semaphores
When decoding the semaphores inside hangcheck, we need to use the hw-id
and not the local array index.
Fixes: de1add360522 ("drm/i915: Decouple execbuf uAPI ...")
Testcase: igt/gem_exec_whisper/hang # gen6-7
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161003124516.12388-3-chris@chris-wilson.co.uk
commit 5f12b80a0b42da253691ca03828033014bb786eb
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon Oct 3 13:45:15 2016 +0100
drm/i915: Unalias obj->phys_handle and obj->userptr
We use obj->phys_handle to choose the pread/pwrite path, but as
obj->phys_handle is a union with obj->userptr, we then mistakenly use
the phys_handle path for userptr objects within pread/pwrite.
Testcase: igt/gem_userptr_blits/forbidden-operations
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97519
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161003124516.12388-2-chris@chris-wilson.co.uk
commit dda960335e020835f7f1c12760e7f0b525b451e2
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon Oct 3 13:45:14 2016 +0100
drm/i915: Just clear the mmiodebug before a register access
When we enable the per-register access mmiodebug, it is to detect which
access is illegal. Reporting on earlier untraced access outside of the
mmiodebug does not help debugging (as the suspicion is immediately put
upon the current register which is not at fault)!
References: https://bugs.freedesktop.org/show_bug.cgi?id=97985
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: stable@vger.kernel.org
Link: http://patchwork.freedesktop.org/patch/msgid/20161003124516.12388-1-chris@chris-wilson.co.uk
commit bb086a89a406b5d877ee616f1490fcc81f8e1b2b
Author: Shaohua Li <shli@fb.com>
Date: Fri Sep 30 09:45:40 2016 -0700
md: set rotational bit
if all disks in an array are non-rotational, set the array
non-rotational.
This only works for array with all disks populated at startup. Support
for disk hotadd/hotremove could be added later if necessary.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Shaohua Li <shli@fb.com>
commit f5b88de284932def6850e976c18d25940c1b2c3d
Author: Brian Norris <computersforpeace@gmail.com>
Date: Mon Oct 3 09:49:35 2016 -0700
mtd: nand: fix trivial spelling error
Introduced by commit fde85cfd2d07 ("mtd: nand: Fix nand_command_lp() for
8bits opcodes") and I didn't have the heart to have Boris rewrite his
pull request just for that. Anyway, there's some value in having stable
commit hashes.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
commit 45808987495ff50a772d1cc66401f5f304948bd9
Author: Chunyan Zhang <zhang.chunyan@linaro.org>
Date: Fri Sep 9 18:18:09 2016 +0800
coresight: stm: return error code instead of zero in .packet()
In STM framework driver, the trace data writing loop would keep running
until it received a negative return value or the whole trace packet has
been written to STM device. So if the .packet() of STM device always
returns zero since the device is not enabled or the parameter isn't
supported, STM framework driver will stall into a dead loop.
Returning -EACCES (Permission denied) in .packet() if the device is
disabled makes more sense, and this is the same for returning -EINVAL
if the channel passed into is not supported.
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit f8fb90de9d4fb2deb504ba6df22c28cb5dc08480
Author: Baoyou Xie <baoyou.xie@linaro.org>
Date: Tue Sep 6 16:03:50 2016 +0800
coresight: tmc: mark symbols static where possible
We get a few warnings when building kernel with W=1:
drivers/hwtracing/coresight/coresight-tmc-etr.c:23:6: warning: no previous prototype for 'tmc_etr_enable_hw' [-Wmissing-prototypes]
drivers/hwtracing/coresight/coresight-tmc-etf.c:25:6: warning: no previous prototype for 'tmc_etb_enable_hw' [-Wmissing-prototypes]
drivers/hwtracing/coresight/coresight-tmc.c:250:9: warning: no previous prototype for ‘trigger_cntr_show’ [-Wmissing-prototypes]
...
In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit ce6e23ba05532a2bb5d572a7e3ac8cc07202c3e5
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Wed Aug 24 14:07:56 2016 -0600
coresight: perf: deal with error condition properly
Function coresight_build_path() should return -ENOMEM when kzalloc
fails to allocated the requested memory. That way callers can deal
with the error condition in a similar way.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 76637d2d0d2e78b428b052c1852a4c73fdea5c2d
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Tue Jul 5 14:22:15 2016 -0600
coresight: etm4x: adding configurable start/stop filtering
With this patch we add start/stop filtering as specified on
the perf cmd line. When the IP matches the start address
trace generation gets triggered. The stop condition is
achieved when the IP matches the stop address.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 2bbb2af3480f2277c0f8ada20eb8b54c733bb0a0
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Mon Jul 4 11:42:08 2016 -0600
coresight: etm4x: adding configurable address range filtering
This patch adds the capability to specify address ranges from
the perf cmd line using the --filter option. If the IP
falls within the range(s) program flow traces are generated.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 57cdb630ec2477f3b02312e6b9917bad66d7139b
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Wed Jun 29 13:08:47 2016 -0600
coresight: etm4x: configuring include/exclude function
The include/exclude function of a tracer is applicable to address
range and start/stop filters. To avoid duplication and reuse code
moving the include/exclude configuration to a function of its own.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit f4639a00374e30179f94935d8f173fa316617d60
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Wed Jun 29 11:01:58 2016 -0600
coresight: etm4x: adding range filter configuration function
Introducing a new function to do address range configuration
generic enough to work for any address range and any comparator.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit c0efed1b44e5bfb9127be3ecba4b3b12bca34ce6
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Tue Jun 28 15:33:21 2016 -0600
coresight: etm4x: cleaning up default filter configuration
The default filter configuration was hard to read and included
some redundancy. This patch attempts to stream line configuration
and improve readability.
No change of functionality is included.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 43e8f63182a234efeedcfea50ffbb8cb97e1e278
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Tue Jun 28 11:26:33 2016 -0600
coresight: etm4x: split default and filter configuration
Splitting the steps involved in the configuration of a tracer.
The first part is generic and can be reused for both sysFS and
Perf methods.
The second part pertains to the configuration of filters
themselves where the source of the information used to
configure the filters will vary depending on the access
methods.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit f4360705982d755eded63faa0b6aebb65af492dc
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Tue Jun 28 14:13:32 2016 -0600
coresight: etm-perf: configuring filters from perf core
This patch implements the required API needed to access
and retrieve range and start/stop filters from the perf core.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 6a6b5d0f5e9d3e66fcc9cae7f5eed97fcc93c18b
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Thu Jun 30 13:04:46 2016 -0600
coresight: remove duplicated enumeration
Both ETMv3 and ETMv4 drivers are declaring an 'enum etm_addr_type',
creating reduncancy.
This patch removes the enumeration from the driver files and adds
it to a common header.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 3325f97d774751508f5fec48effd6608f28c9f64
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Fri Jun 24 15:36:08 2016 -0600
coresight: etm-perf: pass struct perf_event to source::enable/disable()
With this commit [1] address range filter information is now found
in the struct hw_perf_event::addr_filters. As such pass the event
itself to the coresight_source::enable/disable() functions so that
both event attribute and filter can be accessible for configuration.
[1] 'commit 375637bc5249 ("perf/core: Introduce address range filtering")'
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 7cc481aac207625659878475bca11b3eeff3e39a
Author: Sudeep Holla <sudeep.holla@arm.com>
Date: Thu Aug 4 17:22:26 2016 +0100
coresight: fix handling of ETM trace register access via sysfs
The ETM registers are classified into 2 categories: trace and management.
The core power domain contains most of the trace unit logic including
all(except TRCOSLAR and TRCOSLSR) the trace registers. The debug power
domain contains the external debugger interface including all management
registers.
This patch adds coresight unit specific function coresight_simple_func
which can be used for ETM trace registers by providing a ETM specific
read function which does smp cross call to ensure the trace core is
powered up before the register is accessed.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit a9164547054cbbec110ff15a4a2dd4d87173ca70
Author: Sudeep Holla <sudeep.holla@arm.com>
Date: Wed Aug 3 17:12:31 2016 +0100
coresight: etm4x: request to retain power to the trace unit when active
The Coresight ETMv4 architecture provides a way to request to keep the
power to the trace unit. This might help to collect the traces without
the need to disable the CPU power management(entering/exiting deeper
idle states).
Trace PowerDown Control Register provides powerup request bit which when
set requests the system to retain power to the trace unit and emulate
the powerdown request.
Typically, a trace unit drives a signal to the power controller to
request that the trace unit core power domain is powered up. However,
if the trace unit and the CPU are in the same power domain then the
implementation might combine the trace unit power up status with a
signal from the CPU.
This patch requests to retain power to the trace unit when active and
to remove when inactive. Note this change will only request but the
behaviour depends on the implementation. However, it matches the
exact behaviour expected when the external debugger is connected with
respect to CPU power states.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 5f73805256603b24adbbc9b22ac04a1834e346ca
Author: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat Jul 23 20:04:09 2016 +0200
coresight: tmc: Delete an unnecessary check before the function call "kfree"
The kfree() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit eb549fcd1761d6f7279f032d2e0f8df36f0de36a
Author: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue Jul 19 11:27:21 2016 +0000
coresight: etm4x: remove duplicated include from coresight-etm4x.c
Remove duplicated include.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit de38be189881d3d61b4bd19a8157a972f4a5a161
Author: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Wed Jul 13 17:40:25 2016 +0100
coresight: Use local coresight_desc instances
Each coresight device prepares a description for coresight_register()
in struct coresight_desc. Once we register the device, the description is
useless and can be freed. The coresight_desc is small enough (48bytes on
64bit)i to be allocated on the stack. Hence use an automatic variable to
avoid a needless dynamic allocation and wasting the memory(which will only
be free'd when the device is destroyed).
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 884b736b114446bf4505470fa21d7899c89b7355
Author: Peter Chen <peter.chen@nxp.com>
Date: Tue Jul 5 10:11:04 2016 +0800
hwtracing: coresight: of_coresight: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.
Cc: linux-arm-kernel@lists.infradead.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 718e1d9d2ece1932596a8f1cc1e8dd08d8963ace
Author: Olivier Schonken <olivier.schonken@gmail.com>
Date: Tue Jul 5 10:05:49 2016 +0200
coresight-etm3x: Add ARM ETM 3.5 Cortex-A5 peripheral ID
Signed-off-by: Olivier Schonken <olivier.schonken@gmail.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit f2d67408493021dd7081b76336a64ee339c556d5
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Thu Jun 16 13:04:12 2016 -0600
coresight: add PM runtime calls to coresight_simple_func()
It is mandatory to enable a coresight block's power domain before
trying to access management registers. Otherwise the transaction
simply stalls, leading to a system hang.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
commit 90f50e031a28a5b3551701a69d78bb75d07c5ecb
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Sun Jun 19 11:19:43 2016 -0600
coresight: delay initialisation when children are missing
Depending on when CoreSight device are discovered it is possible
that some IP block may be referencing devices that have not been
added to the bus yet. The end result is missing nodes in the
CoreSight topology even when the devices are present and properly
initialised.
This patch solves the problem by asking the driver core to
try initialising the device at a later time when the children
of a CoreSight node are missing.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit dfb8cd5ab64754d56154e4654044ab86479ad02e
Author: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue Jun 21 17:10:54 2016 +0100
coresight: Add better messages for coresight_timeout
When we encounter a timeout waiting for a status change via
coresight_timeout, the caller always print the offset which
was tried. This is pretty much useless as it doesn't specify
the bit position we wait for. Also, one needs to lookup the
TRM to figure out, what was wrong. This patch changes all
such error messages to print something more meaningful.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 90977c5d9158ac4d583a311229617c3ad43707fe
Author: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue Jun 21 17:10:53 2016 +0100
coresight: Cleanup TMC status check
Use the defined symbol rather than hardcoding the value to
check whether the TMC buffer is full.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit c7ec0b1c3b51595d0c268b85a9dd8895945462e7
Author: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue Jun 21 17:10:52 2016 +0100
coresight: etmv4: Fix ETMv4x peripheral ID table
This patch cleans up the peripheral id table for different ETMv4
implementations.
As per Cortex-A53 TRM, the ETM has following id values:
Peripheral ID0 0x5D 0xFE0
Peripheral ID1 0xB9 0xFE4
Peripheral ID2 0x4B 0xFE8
Peripheral ID3 0x00 0xFEC
where, PID2: has the following format:
[7:4] Revision
[3] JEDEC 0b1 res1. Indicates a JEP106 identity code is used
[2:0] DES_1 0b011 ARM Limited. This is bits[6:4] of JEP106 ID code
The existing table entry checks only the bits [1:0], which is not
sufficient enough. Fix it to match bits [3:0], just like the other
entries do. While at it, correct the comment for A57 and the A53 entry.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 58a47a8de41a0ee3bbf06c42669f1b9066cd6e4f
Author: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue Jun 21 17:10:51 2016 +0100
coresight: tmc: Limit the trace to available data
At present the ETF or ETR gives out the entire device
buffer, even if there is less or even no trace data
available. This patch limits the trace data given out to
the actual trace data collected.
Cc: mathieu.poirier@linaro.org
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 462f767c2834e2802d7589f88891f29cf38d3cbf
Author: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue Jun 21 17:10:50 2016 +0100
coresight: Fix csdev connections initialisation
This is a cleanup patch.
coresight_device->conns holds an array to point to the devices
connected to the OUT ports of a component. Sinks, e.g ETR, do not
have an OUT port (nr_outport = 0), as it streams the trace to
memory via AXI.
At coresight_register() we do :
conns = kcalloc(csdev->nr_outport, sizeof(*conns), GFP_KERNEL);
if (!conns) {
ret = -ENOMEM;
goto err_kzalloc_conns;
}
For ETR, since the total size requested for kcalloc is zero, the return
value is, ZERO_SIZE_PTR ( != NULL). Hence, csdev->conns = ZERO_SIZE_PTR
which cannot be verified later to contain a valid pointer. The code which
accesses the csdev->conns is bounded by the csdev->nr_outport check,
hence we don't try to dereference the ZERO_SIZE_PTR. This patch cleans
up the csdev->conns initialisation to make sure we initialise it
properly(i.e, either NULL or valid conns array).
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 018fd130e0b9720d83cdbc205f51de5e34c8ae7f
Author: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue Jun 21 17:10:49 2016 +0100
coresight: Consolidate error handling path for tmc_probe
This patch cleans up the error handling path for tmc_probe
as a side effect of the removal of the spurious dma_free_coherent().
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 8db55674062e6e54f89e009cc623e5a2752a2f4f
Author: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue Jun 21 17:10:48 2016 +0100
coresight: Remove erroneous dma_free_coherent in tmc_probe
commit de5461970b3e9e194 ("coresight: tmc: allocating memory when needed")
removed the static allocation of buffer for the trace data in ETR mode in
tmc_probe. However it failed to remove the "devm_free_coherent" in
tmc_probe when the probe fails due to other reasons. This patch gets
rid of the incorrect dma_free_coherent() call.
Fixes: commit de5461970b3e9e194 ("coresight: tmc: allocating memory when needed")
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 5e60f02512fcb1be1627ba904d2ddf88a45b78ec
Author: Sudeep Holla <sudeep.holla@arm.com>
Date: Mon Jun 20 15:25:41 2016 +0100
coresight: always use stashed trace id value in etm4_trace_id
etm4_trace_id is not guaranteed to be executed on the CPU whose ETM is
being accessed. This leads to exception similar to below one if the
CPU whose ETM is being accessed is in deeper idle states. So it must
be executed on the CPU whose ETM is being accessed.
Unhandled fault: synchronous external abort (0x96000210) at 0xffff000008db4040
Internal error: : 96000210 [#1] PREEMPT SMP
Modules linked in:
CPU: 5 PID: 5979 Comm: etm.sh Not tainted 4.7.0-rc3 #159
Hardware name: ARM Juno development board (r2) (DT)
task: ffff80096dd34b00 ti: ffff80096dfe4000 task.ti: ffff80096dfe4000
PC is at etm4_trace_id+0x5c/0x90
LR is at etm4_trace_id+0x3c/0x90
Call trace:
etm4_trace_id+0x5c/0x90
coresight_id_match+0x78/0xa8
bus_for_each_dev+0x60/0xa0
coresight_enable+0xc0/0x1b8
enable_source_store+0x3c/0x70
dev_attr_store+0x18/0x28
sysfs_kf_write+0x48/0x58
kernfs_fop_write+0x14c/0x1e0
__vfs_write+0x1c/0x100
vfs_write+0xa0/0x1b8
SyS_write+0x44/0xa0
el0_svc_naked+0x24/0x28
However, TRCTRACEIDR is not guaranteed to hold the previous programmed
trace id if it enters deeper idle states. Further, the trace id that is
computed in etm4_init_trace_id is programmed into TRCTRACEIDR only in
etm4_enable_hw which happens much later in the sequence after
coresight_id_match is executed from enable_source_store.
This patch simplifies etm4_trace_id by returning the stashed trace id
value similar to etm4_cpu_id.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit a419ec2cf36a13a6414a63f7c606f202f656fdc0
Author: Chunyan Zhang <zhang.chunyan@linaro.org>
Date: Tue Jun 21 10:24:36 2016 +0800
coresight-stm: support mmapping channel regions with mmio_addr
CoreSight STM device allows direct mapping of the channel regions to
userspace for zero-copy writing. To support this ability, the STM
framework has provided a hook 'mmio_addr', this patch just implemented
this hook for CoreSight STM.
This patch also added an item into 'channel_space' to save the physical
base address of channel region which mmap operation needs to know.
Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 635a375873c4e158cd30e829884a48fbe36076f3
Author: Sudeep Holla <sudeep.holla@arm.com>
Date: Thu Jun 16 11:13:09 2016 +0100
coresight: access conn->child_name only if it's initialised
If the addition of the coresight devices get deferred, then there's a
window before child_name is populated by of_get_coresight_platform_data
from the respective component driver's probe and the attempted to access
the same from coresight_orphan_match resulting in kernel NULL pointer
dereference as below:
Unable to handle kernel NULL pointer dereference at virtual address 0x0
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 1038 Comm: kworker/0:1 Not tainted 4.7.0-rc3 #124
Hardware name: ARM Juno development board (r2) (DT)
Workqueue: events amba_deferred_retry_func
PC is at strcmp+0x1c/0x160
LR is at coresight_orphan_match+0x7c/0xd0
Call trace:
strcmp+0x1c/0x160
bus_for_each_dev+0x60/0xa0
coresight_register+0x264/0x2e0
tmc_probe+0x130/0x310
amba_probe+0xd4/0x1c8
driver_probe_device+0x22c/0x418
__device_attach_driver+0xbc/0x158
bus_for_each_drv+0x58/0x98
__device_attach+0xc4/0x160
device_initial_probe+0x10/0x18
bus_probe_device+0x94/0xa0
device_add+0x344/0x580
amba_device_try_add+0x194/0x238
amba_deferred_retry_func+0x48/0xd0
process_one_work+0x118/0x378
worker_thread+0x48/0x498
kthread+0xd0/0xe8
ret_from_fork+0x10/0x40
This patch adds a check for non-NULL conn->child_name before accessing
the same.
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
commit 61347fa6087884305ea4a3a04501839fdb68dc76
Author: Parav Pandit <pandit.parav@gmail.com>
Date: Tue Sep 13 19:40:50 2016 +0530
IB/rdmavt: Trivial function comment corrected.
Corrected function name in comment from qib_ to rvt_.
Signed-off-by: Parav Pandit <pandit.parav@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
commit 94c630ee73a4a1db18561511dfefc2e41d2e6d1e
Author: Shuah Khan <shuahkh@osg.samsung.com>
Date: Mon Sep 26 11:50:24 2016 -0600
Doc: update 00-INDEX files to reflect the runnable code move
Update 00-INDEX files with the current file list to reflect the runnable
code move.
Acked-by: Michal Marek <mmarek@suse.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
commit c6d2995da5409e3d0ef30c53287d3c17e450e96e
Author: Shuah Khan <shuahkh@osg.samsung.com>
Date: Fri Sep 23 15:14:56 2016 -0600
samples: move blackfin gptimers-example from Documentation
Move blackfin gptimers-example to samples and remove it from Documentation
Makefile. Update samples Kconfig and Makefile to build gptimers-example.
blackfin is the last CONFIG_BUILD_DOCSRC target in Documentation/Makefile,
hence this patch also includes changes to remove CONFIG_BUILD_DOCSRC from
Makefile and lib/Kconfig.debug.
Acked-by: Michal Marek <mmarek@suse.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
commit 464691bd52b46a565153ec2a3b8b9984dacd4a00
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Fri Sep 23 09:57:57 2016 +0200
libceph: ceph_build_auth() doesn't need ceph_auth_build_hello()
A static bug finder (EBA) on Linux 4.7:
Double lock in net/ceph/auth.c
second lock at 108: mutex_lock(& ac->mutex); [ceph_auth_build_hello]
after calling from 263: ret = ceph_auth_build_hello(ac, msg_buf, msg_len);
if ! ac->protocol -> true at 262
first lock at 261: mutex_lock(& ac->mutex); [ceph_build_auth]
ceph_auth_build_hello() is never called, because the protocol is always
initialized, whether we are checking existing tickets (in delayed_work())
or getting new ones after invalidation (in invalidate_authorizer()).
Reported-by: Iago Abal <iari@itu.dk>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit fdc723e77bcf17ec2646fdef031e7f135968a9b7
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Fri Sep 23 09:57:56 2016 +0200
libceph: use CEPH_AUTH_UNKNOWN in ceph_auth_build_hello()
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 92c1037ce8e3a70b616c8b91c990caf16a0096d1
Author: Andreas Gerstmayr <andreas.gerstmayr@gmail.com>
Date: Thu Sep 15 21:23:01 2016 +0200
ceph: fix description for rsize and rasize mount options
Signed-off-by: Andreas Gerstmayr <andreas.gerstmayr@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 88a25a5fa09dff62b5fc1e82fb9c0c6b23971887
Author: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun Sep 11 12:21:25 2016 +0200
rbd: use kmalloc_array() in rbd_header_from_disk()
* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
* Delete the local variable "size" which became unnecessary with
this refactoring.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 8cdcc07dde27d29bc25b3588238d4b1cc9a56fe9
Author: Wei Yongjun <weiyj.lk@gmail.com>
Date: Sat Aug 13 09:10:28 2016 +0000
ceph: use list_move instead of list_del/list_add
Using list_move() instead of list_del() + list_add().
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit fcff415c9421b417ef91d48f546f3c4566ddc358
Author: Yan, Zheng <zyan@redhat.com>
Date: Wed Sep 14 16:39:51 2016 +0800
ceph: handle CEPH_SESSION_REJECT message
Signed-off-by: Yan, Zheng <zyan@redhat.com>
commit ce2728aaa82bbebae7d20345324af3f0f49eeb20
Author: Yan, Zheng <zyan@redhat.com>
Date: Wed Sep 14 14:53:05 2016 +0800
ceph: avoid accessing / when mounting a subpath
Accessing / causes failuire if the client has caps that restrict path
Signed-off-by: Yan, Zheng <zyan@redhat.com>
commit db4a63aab43b2040292b2023512864702b5f9799
Author: Yan, Zheng <zyan@redhat.com>
Date: Tue Sep 13 10:15:36 2016 +0800
ceph: fix mandatory flock check
Signed-off-by: Yan, Zheng <zyan@redhat.com>
commit e55f1a1871b148802b42ee3807edcb6528ffc27d
Author: NeilBrown <neilb@suse.com>
Date: Wed Aug 31 12:59:29 2016 +1000
ceph: remove warning when ceph_releasepage() is called on dirty page
If O_DIRECT writes are racing with buffered writes, then
the call to invalidate_inode_pages2_range() can call ceph_releasepage()
on dirty pages.
Most filesystems hold inode_lock() across O_DIRECT writes so they do not
suffer this race, but cephfs deliberately drops the lock, and opens a window
for the race.
This race can be triggered with the generic/036 test from the xfstests
test suite. It doesn't happen every time, but it does happen often.
As the possibilty is expected, remove the warning, and instead include
the PageDirty() status in the debug message.
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>
commit 5d7eb1a3225309b294275385ece36fee256d5c46
Author: NeilBrown <neilb@suse.com>
Date: Thu Sep 1 22:26:23 2016 +0800
ceph: ignore error from invalidate_inode_pages2_range() in direct write
This call can fail if there are dirty pages. The preceding call to
filemap_write_and_wait_range() will normally remove dirty pages, but
as inode_lock() is not held over calls to ceph_direct_read_write(), it
could race with non-direct writes and pages could be dirtied
immediately after filemap_write_and_wait_range() returns
If there are dirty pages, they will be removed by the subsequent call
to truncate_inode_pages_range(), so having them here is not a problem.
If the 'ret' value is left holding an error, then in the async IO case
(aio_req is not NULL) the loop that would normally call
ceph_osdc_start_request() will see the error in 'ret' and abort all
requests. This doesn't seem like correct behaviour.
So use separate 'ret2' instead of overloading 'ret'.
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>
commit 1afe478569ba7414dde8a874dda9c1ea621c0c63
Author: Yan, Zheng <zyan@redhat.com>
Date: Wed Aug 24 11:33:46 2016 +0800
ceph: fix error handling of start_read()
If start_page() fails to add a page to page cache or fails to send
OSD request. It should cal put_page() (instead of free_page()) for
relevant pages.
Besides, start_page() need to cancel fscache readpage if it fails
to send OSD request.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reported-by: Zhi Zhang <zhang.david2011@gmail.com>
commit 0dcc685e7dd7190dcaa5435e9c14150f1d405b7b
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Mon Sep 26 15:43:52 2016 +0200
rbd: add rbd_obj_request_error() helper
Pull setting an error and marking a request done code into a new
helper. obj_request_img_data_test() check isn't strictly needed right
now, but makes it applicable to !img_data requests and a bit safer.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 04dc923c9e4c43df7d2d94f290189785d3172326
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Thu Sep 15 18:05:16 2016 +0200
rbd: img_data requests don't own their page array
Move the check into rbd_obj_request_destroy() to avoid use-after-free
on errors in rbd_img_request_fill(..., OBJ_REQUEST_PAGES, ...), where
pages, owned by the caller, gets freed in rbd_img_request_fill().
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
commit 7c84883adf6dc614fc9e01304aa1813a55c43ad2
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Thu Sep 15 17:56:39 2016 +0200
rbd: don't call rbd_osd_req_format_read() for !img_data requests
Accessing obj_request->img_request union field is only valid for object
requests associated with an image (i.e. if obj_request_img_data_test()
returns true). rbd_osd_req_format_read() used to do more, but now it
just sets osd_req->snap_id. Standalone and stat object requests always
go to the HEAD revision and are fine with CEPH_NOSNAP set by libceph,
so get around the invalid union field use by simply not calling
rbd_osd_req_format_read() in those places.
Reported-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
commit 710214e391476f331abed1b774b5f025d054ab7f
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Thu Sep 15 17:53:32 2016 +0200
rbd: rework rbd_img_obj_exists_submit() error paths
- don't put obj_request before rbd_obj_request_get() if
rbd_obj_request_create() fails
- don't leak pages if rbd_obj_request_create() fails
- don't leak stat_request if rbd_osd_req_create() fails
Reported-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
commit fa355112c2763d513f1356119684dc8a6150d08a
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Fri Sep 16 15:20:42 2016 +0200
rbd: don't crash or leak on errors in rbd_img_obj_parent_read_full_callback()
- fix parent_length == img_request->xferred assert to not fire on
copyup read failures
- don't leak pages if copyup read fails or we can't allocate a new osd
request
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
commit 4a17dadcae55ca1f5c1ed826d42185e22653c256
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Tue Sep 13 21:08:10 2016 +0200
rbd: move bumping img_request refcount into rbd_obj_request_submit()
Commit 0f2d5be792b0 ("rbd: use reference counts for image requests")
added rbd_img_request_get(), which rbd_img_request_fill() calls for
each obj_request added to img_request. It was an urgent band-aid for
the uglyness that is rbd_img_obj_callback() and none of the error paths
were updated.
Given that this img_request reference is meant to represent an
obj_request that hasn't passed through rbd_img_obj_callback() yet,
proper cleanup in appropriate destructors is a challenge. However,
noting that if we don't get a chance to call rbd_obj_request_complete(),
there is not going to be a call to rbd_img_obj_callback(), we can move
rbd_img_request_get() into rbd_obj_request_submit() and fixup the two
places that call rbd_obj_request_complete() directly and not through
rbd_obj_request_submit() to temporarily bump img_request, so that
rbd_img_obj_callback() can put as usual.
This takes care of img_request leaks on errors on the submit side.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
commit c2e82414884718ad6ec33a7528606cb07cf55cb4
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Tue Sep 13 20:18:01 2016 +0200
rbd: mark the original request as done if stat request fails
If stat request fails with something other than -ENOENT (which just
means that we need to copyup), the original object request is never
marked as done and therefore never completed. Fix this by moving the
mark done + complete snippet from rbd_img_obj_parent_read_full() into
rbd_img_obj_exists_callback(). The former remains covered, as the
latter is its only caller (through rbd_img_obj_request_submit()).
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
commit 058aa9919147da9f088a96982a19ea0864139dc8
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Mon Sep 12 14:44:45 2016 +0200
rbd: clean up asserts in rbd_img_obj_request_submit() helpers
Assert once in rbd_img_obj_request_submit().
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
commit 980917fc6ec94cb614fd79e6a124689e700f9d97
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Mon Sep 12 18:59:42 2016 +0200
rbd: change rbd_obj_request_submit() signature
- osdc parameter is useless
- starting with commit 5aea3dcd5021 ("libceph: a major OSD client
update"), ceph_osdc_start_request() always returns success
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
commit 80de19122866d0a65f741e7ff2d5d20842d22d6b
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Tue Sep 20 14:23:17 2016 +0200
rbd: lock_on_read map option
Add a per-device option to acquire exclusive lock on reads (in addition
to writes and discards). The use case is iSCSI, where it will be used
to prevent execution of stale writes after the implicit failover.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Tested-by: Mike Christie <mchristi@redhat.com>
commit bd85f4b37ddf2da22ccf5b29d264b2459b6722df
Author: Xie XiuQi <xiexiuqi@huawei.com>
Date: Tue Sep 27 15:07:12 2016 +0800
ipmi: fix crash on reading version from proc after unregisted bmc
I meet a crash, which could be reproduce:
1) while true; do cat /proc/ipmi/0/version; done
2) modprobe -rv ipmi_si ipmi_msghandler ipmi_devintf
[82761.021137] IPMI BT: req2rsp=5 secs retries=2
[82761.034524] ipmi device interface
[82761.222218] ipmi_si ipmi_si.0: Found new BMC (man_id: 0x0007db, prod_id: 0x0001, dev_id: 0x01)
[82761.222230] ipmi_si ipmi_si.0: IPMI bt interface initialized
[82903.922740] BUG: unable to handle kernel NULL pointer dereference at 00000000000002d4
[82903.930952] IP: [<ffffffffa030d9e8>] smi_version_proc_show+0x18/0x40 [ipmi_msghandler]
[82903.939220] PGD 86693a067 PUD 865304067 PMD 0
[82903.943893] Thread overran stack, or stack corrupted
[82903.949034] Oops: 0000 [#1] SMP
[82903.983091] Modules linked in: ipmi_si(-) ipmi_msghandler binfmt_misc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter
...
[82904.057285] pps_core scsi_transport_sas dm_mod vfio_iommu_type1 vfio xt_sctp nf_conntrack_proto_sctp nf_nat_proto_sctp
nf_nat nf_conntrack sctp libcrc32c [last unloaded: ipmi_devintf]
[82904.073169] CPU: 37 PID: 28089 Comm: cat Tainted: GF O ---- ------- 3.10.0-327.28.3.el7.x86_64 #1
[82904.083373] Hardware name: Huawei RH2288H V3/BC11HGSA0, BIOS 3.22 05/16/2016
[82904.090592] task: ffff880101cc2e00 ti: ffff880369c54000 task.ti: ffff880369c54000
[82904.098414] RIP: 0010:[<ffffffffa030d9e8>] [<ffffffffa030d9e8>] smi_version_proc_show+0x18/0x40 [ipmi_msghandler]
[82904.109124] RSP: 0018:ffff880369c57e70 EFLAGS: 00010203
[82904.114608] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000024688470
[82904.121912] RDX: fffffffffffffff4 RSI: ffffffffa0313404 RDI: ffff8808670ce200
[82904.129218] RBP: ffff880369c57e70 R08: 0000000000019720 R09: ffffffff81204a27
[82904.136521] R10: ffff88046f803300 R11: 0000000000000246 R12: ffff880662399700
[82904.143828] R13: 0000000000000001 R14: ffff880369c57f48 R15: ffff8808670ce200
[82904.151128] FS: 00007fb70c9ca740(0000) GS:ffff88086e340000(0000) knlGS:0000000000000000
[82904.159557] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[82904.165473] CR2: 00000000000002d4 CR3: 0000000864c0c000 CR4: 00000000003407e0
[82904.172778] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[82904.180084] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[82904.187385] Stack:
[82904.189573] ffff880369c57ee0 ffffffff81204f1a 00000000122a2427 0000000001426000
[82904.197392] ffff8808670ce238 0000000000010000 0000000000000000 0000000000000fff
[82904.205198] 00000000122a2427 ffff880862079600 0000000001426000 ffff880369c57f48
[82904.212962] Call Trace:
[82904.219667] [<ffffffff81204f1a>] seq_read+0xfa/0x3a0
[82904.224893] [<ffffffff8124ce2d>] proc_reg_read+0x3d/0x80
[82904.230468] [<ffffffff811e102c>] vfs_read+0x9c/0x170
[82904.235689] [<ffffffff811e1b7f>] SyS_read+0x7f/0xe0
[82904.240816] [<ffffffff81649209>] system_call_fastpath+0x16/0x1b
[82904.246991] Code: 30 a0 e8 0c 6f ef e0 5b 5d c3 66 0f 1f 84 00 00 00 00 00 0f 1f
44 00 00 48 8b 47 78 55 48 c7 c6 04 34 31 a0 48 89 e5 48 8b 40 50 <0f>
b6 90 d4 02 00 00 31 c0 89 d1 83 e2 0f c0 e9 04 0f b6 c9 e8
[82904.267710] RIP [<ffffffffa030d9e8>] smi_version_proc_show+0x18/0x40 [ipmi_msghandler]
[82904.276079] RSP <ffff880369c57e70>
[82904.279734] CR2: 00000000000002d4
[82904.283731] ---[ end trace a69e4328b49dd7c4 ]---
[82904.328118] Kernel panic - not syncing: Fatal exception
Reading versin from /proc need bmc device struct available. So in this patch
we move add/remove_proc_entries between ipmi_bmc_register and ipmi_bmc_unregister.
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
commit 262f75a6288346db44038c63b7a95ee68f8b7bea
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon Oct 3 10:28:27 2016 +0200
drm: Undo damage to page_flip_ioctl
I screwed up rebasing of my patch in
commit 43968d7b806d7a7e021261294c583a216fddf0e5
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Sep 21 10:59:24 2016 +0200
drm: Extract drm_plane.[hc]
which meant on error paths drm_crtc_vblank_put could be called without
a get, leading to an underrun of the refcount.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98020
Reported-and-tested-by: Andy Furniss <adf.lists@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161003082827.11586-1-daniel.vetter@ffwll.ch
commit 63401ccdb2ca08ae76909f6588a3f3348bc3555d
Author: Miklos Szeredi <mszeredi@redhat.com>
Date: Mon Oct 3 11:06:05 2016 +0200
fuse: limit xattr returned size
Don't let userspace filesystem give bogus values for the size of xattr and
xattr list.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
commit fc113d54e9d7ef3296cdf2eff49c8ca0a3e5a482
Author: Brian Boylston <brian.boylston@hpe.com>
Date: Mon Sep 26 13:57:14 2016 -0500
watchdog: hpwdt: add support for iLO5
iLO5 will offer the same watchdog timer as previous generations, but the
PCI subsystem vendor ID will be PCI_VENDOR_ID_HP_3PAR (0x1590) instead of
PCI_VENDOR_ID_HP (0x103c). Add 0x1590 to the whitelist and be more
specific when ignoring the 103c,1979 device.
Signed-off-by: Brian Boylston <brian.boylston@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
commit f814bfd765218908b23e21ca7f0b6f403fb88972
Author: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Sat Oct 1 00:56:37 2016 +0300
net: mvmdio: do not clk_disable_unprepare() NULL clock
There is no need to clk_disable_unprepare(dev->clk)
before it was initialized.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 85de4a2101acb85c3b1dde465e84596ccca99f2c
Author: Jiri Benc <jbenc@redhat.com>
Date: Fri Sep 30 19:08:07 2016 +0200
openvswitch: use mpls_hdr
skb_mpls_header is equivalent to mpls_hdr now. Use the existing helper
instead.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 9095e10edd28e1e4a10ba5ca61fb54d9f74f8968
Author: Jiri Benc <jbenc@redhat.com>
Date: Fri Sep 30 19:08:06 2016 +0200
mpls: move mpls_hdr to a common location
This will be also used by openvswitch.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit f7d49bce8e741e1e6aa14ce4db1b6cea7e4be4e8
Author: Jiri Benc <jbenc@redhat.com>
Date: Fri Sep 30 19:08:05 2016 +0200
openvswitch: mpls: set network header correctly on key extract
After the 48d2ab609b6b ("net: mpls: Fixups for GSO"), MPLS handling in
openvswitch was changed to have network header pointing to the start of the
MPLS headers and inner_network_header pointing after the MPLS headers.
However, key_extract was missed by the mentioned commit, causing incorrect
headers to be set when a MPLS packet just enters the bridge or after it is
recirculated.
Fixes: 48d2ab609b6b ("net: mpls: Fixups for GSO")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit ab580705693d5af79663efa504a72248700766fc
Author: Arnd Bergmann <arnd@arndb.de>
Date: Fri Sep 30 18:17:10 2016 +0200
mlxsw: spectrum_router: avoid potential uninitialized data usage
If fi->fib_nhs is zero, the router interface pointer is uninitialized, as shown by
this warning:
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c: In function 'mlxsw_sp_router_fib_event':
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:1674:21: error: 'r' may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:1643:23: note: 'r' was declared here
This changes the loop so we handle the case the same way as finding no router
interface pointer attached to one of the nexthops to ensure we always
trap here instead of using uninitialized data.
Fixes: b45f64d16d45 ("mlxsw: spectrum_router: Use FIB notifications instead of switchdev calls")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit d0debb76df18f05ecc65579d37203703ffdec44d
Author: Arnd Bergmann <arnd@arndb.de>
Date: Fri Sep 30 18:17:09 2016 +0200
net/mlx5e: shut up maybe-uninitialized warning
Build-testing this driver with -Wmaybe-uninitialized gives a new false-positive
warning that I can't really explain:
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c: In function 'mlx5e_configure_flower':
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:509:3: error: 'old_attr' may be used uninitialized in this function [-Werror=maybe-uninitialized]
It's obvious from the code that 'old_attr' is initialized whenever 'old'
is non-NULL here. The warning appears with all versions I tested from gcc-4.7
through gcc-6.1, and I could not come up with a way to rewrite the function
in a more readable way that avoids the warning, so I'm adding another
initialization to shut it up.
Fixes: 8b32580df1cb ("net/mlx5e: Add TC vlan action for SRIOV offloads")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 0c238e65d7dc62c5cae138cec720fec7baa07a24
Author: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Fri Sep 23 16:06:40 2016 +0200
drm/rockchip: analogix_dp: Refuse to enable PSR if panel doesn't support it
There's no point in enabling PSR when the panel doesn't support it.
This also avoids a problem when PSR gets enabled when a CRTC is being
disabled, because sometimes in that situation the DSP_HOLD_VALID_INTR
interrupt on which we wait will never arrive. This was observed on
RK3288 with a panel without PSR (veyron-jaq Chromebook).
It's very easy to reproduce by running the kms_rmfb test in IGT a few
times.
Cc: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1474639600-30090-2-git-send-email-tomeu.vizoso@collabora.com
commit a4cb6284e28b90761145f3ffa454a515ac4644ba
Author: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Date: Fri Sep 23 16:06:39 2016 +0200
drm/bridge: analogix_dp: Add analogix_dp_psr_supported
So users know whether PSR should be enabled or not.
Cc: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1474639600-30090-1-git-send-email-tomeu.vizoso@collabora.com
commit fbb6aacb078285f88e4a4a20399c6af8d61e0000
Author: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Sun Oct 2 17:46:39 2016 -0700
remoteproc: Refactor rproc module locking
Lock the implementation as we hand out references to client drivers
rather than when they try to boot the remote processor. This allows
auto-booting remote processors to be shut down by unloading their
module, in addition to first unbinding them.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
commit 433c0e04bc06da6d049c691a9ef238d61edb841c
Author: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Sun Oct 2 17:46:38 2016 -0700
remoteproc: Split driver and consumer dereferencing
In order to be able to lock a rproc driver implementations only when
used by a client, we must differ between the dereference operation of a
client and the implementation itself.
This patch brings no functional change.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
commit 229b85a6a54d7eef81ba307d60a589cc232f06d1
Author: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Sun Oct 2 17:41:29 2016 -0700
remoteproc: Correct resource handling upon boot failure
The freeing of resources will attempt to clear values previously set in
the cached resource table, so make sure to free the table after we have
cleaned up the resources.
Fixes: 988d204cdaf6 ("remoteproc: Move handling of cached table to boot/shutdown")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
commit bcaf9dcf55fdac747f04a79e976c4543da3a4ab2
Author: Olof Johansson <olof@lixom.net>
Date: Sun Oct 2 22:42:13 2016 -0700
ARM: SoC: Document merges
Signed-off-by: Olof Johansson <olof@lixom.net>
commit 7c70c4f8b2bf5ed777120f3d70efe35e64930c10
Author: Arnd Bergmann <arnd@arndb.de>
Date: Fri Sep 30 18:15:33 2016 +0200
cxgb4: unexport cxgb4_dcb_enabled
A recent cleanup marked cxgb4_dcb_enabled as 'static', which is correct, but this ignored
how the symbol is also exported. In addition, the export can be compiled out when modules
are disabled, causing a harmless compiler warning in configurations for which it is not
used at all:
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:282:12: error: 'cxgb4_dcb_enabled' defined but not used [-Werror=unused-function]
This removes the export and moves the function into the correct #ifdef so we only build
it when there are users.
Fixes: 50935857f878 ("cxgb4: mark symbols static where possible")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit fa34cd94fb01fcb8d79d91e009451b37692e94e5
Author: Arnd Bergmann <arnd@arndb.de>
Date: Fri Sep 30 18:13:49 2016 +0200
net: rtnl: avoid uninitialized data in IFLA_VF_VLAN_LIST handling
With the newly added support for IFLA_VF_VLAN_LIST netlink messages,
we get a warning about potential uninitialized variable use in
the parsing of the user input when enabling the -Wmaybe-uninitialized
warning:
net/core/rtnetlink.c: In function 'do_setvfinfo':
net/core/rtnetlink.c:1756:9: error: 'ivvl$' may be used uninitialized in this function [-Werror=maybe-uninitialized]
I have not been able to prove whether it is possible to arrive in
this code with an empty IFLA_VF_VLAN_LIST block, but if we do,
then ndo_set_vf_vlan gets called with uninitialized arguments.
This adds an explicit check for an empty list, making it obvious
to the reader and the compiler that this cannot happen.
Fixes: 79aab093a0b5 ("net: Update API for VF vlan protocol 802.1ad support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 63d75463c91a5b5be7c0aca11ceb45ea5a0ae81d
Author: Paolo Abeni <pabeni@redhat.com>
Date: Fri Sep 30 16:56:45 2016 +0200
net: pktgen: fix pkt_size
The commit 879c7220e828 ("net: pktgen: Observe needed_headroom
of the device") increased the 'pkt_overhead' field value by
LL_RESERVED_SPACE.
As a side effect the generated packet size, computed as:
/* Eth + IPh + UDPh + mpls */
datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 -
pkt_dev->pkt_overhead;
is decreased by the same value.
The above changed slightly the behavior of existing pktgen users,
and made the procfs interface somewhat inconsistent.
Fix it by restoring the previous pkt_overhead value and using
LL_RESERVED_SPACE as extralen in skb allocation.
Also, change pktgen_alloc_skb() to only partially reserve
the headroom to allow the caller to prefetch from ll header
start.
v1 -> v2:
- fixed some typos in the comments
Fixes: 879c7220e828 ("net: pktgen: Observe needed_headroom of the device")
Suggested-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit b82d44d78480faff7456e9e0999acb9d38666057
Author: Gavin Schenk <g.schenk@eckelmann.de>
Date: Fri Sep 30 11:46:10 2016 +0200
net: fec: set mac address unconditionally
If the mac address origin is not dt, you can only safely assign a mac
address after "link up" of the device. If the link is off the clocks are
disabled and because of issues assigning registers when clocks are off the
new mac address cannot be written in .ndo_set_mac_address() on some soc's.
This fix sets the mac address unconditionally in fec_restart(...) and
ensures consistency between fec registers and the network layer.
Signed-off-by: Gavin Schenk <g.schenk@eckelmann.de>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 9638d19e4816 ("net: fec: add netif status check before set mac address")
Signed-off-by: David S. Miller <davem@davemloft.net>
commit d6db68b2deaa0158d25b236edffcf6dd2117208f
Author: Linus Walleij <linus.walleij@linaro.org>
Date: Sun Oct 2 23:53:59 2016 +0200
bus: qcom-ebi2: depend on HAS_IOMEM
After being asked to not depend on ARCH_QCOM* or similar,
unsurprisingly compilation fails on UM as it has no I/O
memory:
drivers/built-in.o: In function `qcom_ebi2_probe':
>> drivers/bus/qcom-ebi2.c:333: undefined reference to
`devm_ioremap_resource'
Fix this by letting the Kconfig atleast depend on HAS_IOMEM.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Gross <andy.gross@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
commit 3a82e78c131a8199d38cf653b523c8fa2909df65
Author: Baoyou Xie <baoyou.xie@linaro.org>
Date: Fri Sep 30 15:48:50 2016 +0800
net: ethernet: mediatek: mark symbols static where possible
We get 2 warnings when building kernel with W=1:
drivers/net/ethernet/mediatek/mtk_eth_soc.c:2041:5: warning: no previous prototype for 'mtk_get_link_ksettings' [-Wmissing-prototypes]
drivers/net/ethernet/mediatek/mtk_eth_soc.c:2052:5: warning: no previous prototype for 'mtk_set_link_ksettings' [-Wmissing-prototypes]
In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
So this patch marks these functions with 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 8efebd6e5e93283a72d7a014d6dd8130e6601352
Author: Baoyou Xie <baoyou.xie@linaro.org>
Date: Fri Sep 30 15:34:25 2016 +0800
cxgb4: mark cxgb_setup_tc() static
We get 1 warning when building kernel with W=1:
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c:2715:5: warning: no previous prototype for 'cxgb_setup_tc' [-Wmissing-prototypes]
In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
so this patch marks this function with 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 8185041f5fa6f02acf75229a590e16aac028fc5e
Author: Vladimir Zapolskiy <vz@mleia.com>
Date: Fri Jul 8 01:46:41 2016 +0300
ARM: dts: lpc32xx: add device node for IRAM on-chip memory
The change adds a new device node with description of generic SRAM
on-chip memory found on NXP LPC32xx SoC series and connected to AHB
matrix slave port 3.
Note that NXP LPC3220 SoC has 128KiB of SRAM memory, the other
LPC3230, LPC3240 and LPC3250 SoCs all have 256KiB SRAM space,
in the shared DTSI file this change specifies 128KiB SRAM size.
Also it's worth to mention that the SRAM area contains of 64KiB banks,
2 banks on LPC3220 and 4 banks on the other SoCs from the series, and
all SRAM banks but the first one have independent power controls,
the description of this feature will be added with the introduction of
power domains for the SoC series.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Cc: Sylvain Lemieux <slemieux.tyco@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
commit cb9e684e89e69894cb6697a3fa1274a284d1d3bb
Author: Maciej Żenczykowski <maze@google.com>
Date: Thu Sep 29 00:33:43 2016 -0700
ipv6 addrconf: remove addrconf_sysctl_hop_limit()
This is an effective no-op in terms of user observable behaviour.
By preventing the overwrite of non-null extra1/extra2 fields
in addrconf_sysctl() we can enable the use of proc_dointvec_minmax().
This allows us to eliminate the constant min/max (1..255) trampoline
function that is addrconf_sysctl_hop_limit().
This is nice because it simplifies the code, and allows future
sysctls with constant min/max limits to also not require trampolines.
We still can't eliminate the trampoline for mtu because it isn't
actually a constant (it depends on other tunables of the device)
and thus requires at-write-time logic to enforce range.
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Acked-by: Erik Kline <ek@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit d4ef9f72128d414ad83b27b49312faa971d77382
Author: Stefan Agner <stefan@agner.ch>
Date: Wed Sep 28 15:05:28 2016 -0700
netfilter: bridge: clarify bridge/netfilter message
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