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GIT ca80d82c230807c588d14e3f26dee035f3ca1658
commit 6f0b826da4a33e83501d6c1dc977afa0f5f7166f
Author: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat Aug 20 07:50:09 2016 +0200
mlx5/core: Use memdup_user() rather than duplicating its implementation
* Reuse existing functionality from memdup_user() instead of keeping
duplicate source code.
This issue was detected by using the Coccinelle software.
* Return directly if this copy operation failed.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit b9a24bb76bf611a5268ceffe04219e6ad264559b
Author: WANG Cong <xiyou.wangcong@gmail.com>
Date: Fri Aug 19 12:36:54 2016 -0700
net_sched: properly handle failure case of tcf_exts_init()
After commit 22dc13c837c3 ("net_sched: convert tcf_exts from list to pointer array")
we do dynamic allocation in tcf_exts_init(), therefore we need
to handle the ENOMEM case properly.
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit cae750bae4e488c138eb436175201a60943eb3dc
Author: Paul Burton <paul.burton@imgtec.com>
Date: Fri Aug 19 18:11:19 2016 +0100
irqchip/mips-gic: Use for_each_set_bit to iterate over IRQs
The MIPS GIC driver has previously iterated over bits set in a bitmap
representing pending IRQs by calling find_first_bit, clearing that bit
then calling find_first_bit again until all bits are clear. If multiple
interrupts are pending then this is wasteful, as find_first_bit will
have to loop over the whole bitmap from the start. Use the
for_each_set_bit macro which performs exactly what we need here instead.
It will use find_next_bit and thus only scan over the relevant part of
the bitmap, and it makes the intent of the code more clear.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Link: https://lkml.kernel.org/r/20160819171119.28121-1-paul.burton@imgtec.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
commit a10035a9b787a65e2cc9e7d59df6c698ba778c17
Author: Mike Christie <mchristi@redhat.com>
Date: Thu Aug 18 18:38:45 2016 +0200
rbd: add force close option
This adds a force close option, so we can force the unmapping
of a rbd device that is open. If a path/device is blacklisted, apps
like multipathd can map a new device and then unmap the old one.
The unmapping cleanup would then be handled by the generic hotunplug
code paths in multipahd like is done for iSCSI, FC/FCOE, SAS, etc.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 21118df66c198d6ebb23e6827e2e92ab1e148e78
Author: Wei Yongjun <weiyj.lk@gmail.com>
Date: Sat Aug 20 15:26:28 2016 +0000
irqchip/jcore-aic: Fix non static symbol warning
Fixes the following sparse warning:
drivers/irqchip/irq-jcore-aic.c:47:12: warning:
symbol 'aic_irq_of_init' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Link: https://lkml.kernel.org/r/1471706788-27587-1-git-send-email-weiyj.lk@gmail.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
commit 04208a24b9d2f46f07f4400a4829d5372d0a3661
Author: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri Aug 5 16:55:20 2016 +0200
arm64: marvell: enable the Marvell PIC driver
This commit makes sure the driver for the Marvell PIC interrupt
controller (used on Marvell Armada 7K/8K) is enabled.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1470408921-447-4-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
commit a109893bd3e71912b376a731b27de8c45fded9b3
Author: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri Aug 5 16:55:19 2016 +0200
irqchip/mvebu-pic: New driver for Marvell Armada 7K/8K PIC
The Marvell Armada 7K/8K integrates a secondary interrupt controller
very originally named "PIC". It is connected to the main GIC via a
PPI. Amongst other things, this PIC is used for the ARM PMU.
This commit adds a simple irqchip driver for this interrupt
controller. Since this interrupt controller is not needed early at boot
time, we make the driver a proper platform driver rather than use the
IRQCHIP_DECLARE() mechanism.
Signed-off-by: Yehuda Yitschak <yehuday@marvell.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1470408921-447-3-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
commit f69f2593c77e981922234369ec157117e7068776
Author: Mike Christie <mchristi@redhat.com>
Date: Thu Aug 18 18:38:45 2016 +0200
rbd: add 'config_info' sysfs rbd device attribute
Export the info used to setup the rbd image, so it can be used to remap
the image.
Signed-off-by: Mike Christie <mchristi@redhat.com>
[idryomov@gmail.com: do_rbd_add() EH]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit dd86aa3766a11e5d8dfd43940f63b784fc733695
Author: Mike Christie <mchristi@redhat.com>
Date: Thu Aug 18 18:38:44 2016 +0200
rbd: add 'snap_id' sysfs rbd device attribute
Export snap id in sysfs, so tools like multipathd can use it in a uuid.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 07f22ac266cb1591aac4679d3462706de0ff7a5d
Author: Mike Christie <mchristi@redhat.com>
Date: Thu Aug 18 18:38:43 2016 +0200
rbd: add 'cluster_fsid' sysfs rbd device attribute
Export the cluster fsid, so tools like udev and multipath-tools can use
it for part of the uuid.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 83a117c50940d5367710a0f00d0d8be693d937f5
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Thu Aug 18 18:38:43 2016 +0200
rbd: add 'client_addr' sysfs rbd device attribute
Export client addr/nonce, so userspace can check if a image is being
blacklisted.
Signed-off-by: Mike Christie <mchristi@redhat.com>
[idryomov@gmail.com: ceph_client_addr(), endianess fix]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit ca7bfe2c8d9f3aee469a3a36110a95ebb511ee20
Author: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Date: Mon Aug 22 11:04:49 2016 -0300
docs-rst: add package adjustbox
We need adjustbox to allow adjusting the size of tables that
are bigger than the line width. There are quite a few of them
at the media books.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit ba1377fba7047a86c31981363cbd9e65b1ca2763
Author: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Date: Sun Aug 21 15:23:04 2016 -0300
docs-rst: Fix an warning when in interactive mode
When XeLaTeX is in interactive mode, it complains that
py@noticelength already exists. Rename it and declare it
only once to avoid such messages.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit 41cff161fe99d1c6a773becc2250a1dc3ac035ff
Author: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Date: Sun Aug 21 15:23:03 2016 -0300
docs-rst: Use better colors for note/warning/attention boxes
Instead of painting the box with gray, let's use a colored
box. IMHO, that makes easier to warn users about some issue
pointed by the Sphinx. It also matches to what we do already
with the HTML output.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit bf1bead585e5a8c21d4ac7a8d7fc860b80c4290a
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Thu Aug 18 18:38:41 2016 +0200
rbd: print capacity in decimal and features in hex
With exclusive-lock added and more to come, print features into dmesg.
Change capacity to decimal while at it.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit aa0336393dc095f2a2eaf543ebbf1dfc0bda40cf
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Fri Aug 12 16:40:02 2016 +0200
rbd: support for exclusive-lock feature
Add basic support for RBD_FEATURE_EXCLUSIVE_LOCK feature. Maintenance
operations (resize, snapshot create, etc) are offloaded to librbd via
returning -EOPNOTSUPP - librbd should request the lock and execute the
operation.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit d7ad7f3c6bc4da00a822bf65f8c677173e7192a2
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Fri Aug 12 16:11:41 2016 +0200
rbd: retry watch re-registration periodically
Revamp watch code to support retrying watch re-registration:
- add rbd_dev->watch_state for more robust errcb handling
- store watch cookie separately to avoid dereferencing watch_handle
which is set to NULL on unwatch
- move re-register code into a delayed work and retry re-registration
every second, unless the client is blacklisted
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 885bfa587709736b9081ef2cf2a08c007b798ea5
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Fri Aug 12 15:45:52 2016 +0200
rbd: introduce a per-device ordered workqueue
This is going to be used for reregistering watch requests and
exclusive-lock tasks: acquire/request lock, notify-acquired, release
lock, notify-released. Some refactoring in the map/unmap paths was
necessary to give this workqueue a meaningful name: "rbdX-tasks".
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit a926f18ef50a526726d1f9e9249bb455246389e0
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Fri Aug 12 14:59:58 2016 +0200
libceph: rename ceph_client_id() -> ceph_client_gid()
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 243b6381a3ddafef0f598c825da094fb2aca9c1b
Author: Douglas Fuller <dfuller@redhat.com>
Date: Wed Jul 22 20:59:52 2015 -0400
libceph: support for blacklisting clients
Reuse ceph_mon_generic_request infrastructure for sending monitor
commands. In particular, add support for 'blacklist add' to prevent
other, non-responsive clients from making further updates.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
[idryomov@gmail.com: refactor, misc fixes throughout]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit c33c690cc42e7e11a694ad2b7721ed37c883c1a3
Author: Douglas Fuller <dfuller@redhat.com>
Date: Mon Jun 29 16:55:42 2015 -0700
libceph: support for lock.lock_info
Add an interface for the Ceph OSD lock.lock_info method and associated
data structures.
Based heavily on code by Mike Christie <michaelc@cs.wisc.edu>.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
[idryomov@gmail.com: refactor, misc fixes throughout]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit b3872a9b832154b6051ecfcd81ff315ee1447c36
Author: Douglas Fuller <dfuller@redhat.com>
Date: Thu Jun 18 13:06:10 2015 -0700
libceph: support for advisory locking on RADOS objects
This patch adds support for rados lock, unlock and break lock.
Based heavily on code by Mike Christie <michaelc@cs.wisc.edu>.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit 66b78cbaa9d7f7d6c1e4dee8495db436bcd9cc51
Author: Douglas Fuller <dfuller@redhat.com>
Date: Wed Jun 17 14:49:45 2015 -0400
libceph: add ceph_osdc_call() single-page helper
Add a convenience function to osd_client to send Ceph OSD
'class' ops. The interface assumes that the request and
reply data each consist of single pages.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit ba5eddca49df02a746026725c94965d2e0300cbf
Author: Douglas Fuller <dfuller@redhat.com>
Date: Fri Jul 17 13:18:07 2015 -0700
libceph: support for CEPH_OSD_OP_LIST_WATCHERS
Add support for this Ceph OSD op, needed to support the RBD exclusive
lock feature.
Signed-off-by: Douglas Fuller <dfuller@redhat.com>
[idryomov@gmail.com: refactor, misc fixes throughout]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit a653fc0abf0f9641c611d9e993c865e75e5de997
Author: Ilya Dryomov <idryomov@gmail.com>
Date: Thu Jun 2 16:45:08 2016 +0200
libceph: rename ceph_entity_name_encode() -> ceph_auth_entity_name_encode()
Clear up EntityName vs entity_name_t confusion.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
commit aa4e37a3d13679dccf7945dd864375b698cf0df9
Author: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Date: Fri Aug 19 09:49:38 2016 -0300
docs-rst: conf.py: adjust the size of .. note:: tag
While the current implementation works well when using as a
paragraph, it doesn't work properly if inside a table. As we
have quite a few such cases, fix the logic to take the column
size into account.
PS.: I took the logic there from the latest version of Sphinx.sty
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit d565127d120e9b95ba98549c31eab9cec1cbbbc7
Author: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Date: Thu Aug 18 11:53:39 2016 -0300
docs-rst: add support for LaTeX output
Sphinx supports LaTeX output. Sometimes, it is interesting to
call it directly, instead of also generating a PDF. As it comes
for free, add a target for it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit 9cd3476c91708b4b814f17671597a2708ec195ed
Author: Markus Heiser <markus.heiser@darmarIT.de>
Date: Mon Aug 15 16:08:28 2016 +0200
doc-rst: migrate ioctl CEC_DQEVENT to c-domain
This is only one example, demonstrating the benefits of the patch
series. The CEC_DQEVENT ioctl is migrated to the sphinx c-domain and
referred by ":name: CEC_DQEVENT".
With this change the indirection using ":ref:`CEC_DQEVENT` is no longer
needed, we can refer the ioctl directly with ":c:func:`CEC_DQEVENT`". As
addition in the index, there is a entry "CEC_DQEVENT (C function)".
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit aa10a7826646c56eb4553df8fe81b3d23655c91a
Author: Markus Heiser <markus.heiser@darmarIT.de>
Date: Mon Aug 15 16:08:27 2016 +0200
doc-rst: Revert "kernel-doc: fix handling of address_space tags"
This reverts commit a88b1672d4ddf9895eb53e6980926d5e960dea8e.
From the origin comit log::
The RST cpp:function handler is very pedantic: it doesn't allow any
macros like __user on it
Since the kernel-doc parser does NOT make use of the cpp:domain, there
is no need to change the kernel-doc parser eleminating the address_space
tags.
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit 556aa6d5d9616ccfc0099c40dc239157f50ee776
Author: Markus Heiser <markus.heiser@darmarIT.de>
Date: Mon Aug 15 16:08:26 2016 +0200
doc-rst: moved *duplicate* warnings to nitpicky mode
Moved the *duplicate C object description* warnings for function
declarations in the nitpicky mode. In nitpick mode, you can suppress
those warnings (e.g. ioctl) with::
nitpicky = True
nitpick_ignore = [
("c:func", "ioctl"),
]
See Sphinx documentation for the config values for ``nitpick`` and
``nitpick_ignore`` [1].
With this change all the ".. cpp:function:: int ioctl(..)" descriptions
(found in the media book) can be migrated to ".. c:function:: int
ioctl(..)", without getting any warnings. E.g.::
.. cpp:function:: int ioctl( int fd, int request, struct cec_event *argp )
.. c:function:: int ioctl( int fd, int request, struct cec_event *argp )
The main effect, is that we get those *CPP-types* back into Sphinx's C-
namespace and we need no longer to distinguish between c/cpp references,
when we refer a function like the ioctl.
[1] http://www.sphinx-doc.org/en/stable/config.html?highlight=nitpick#confval-nitpicky
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit 2c645cd7c4a0d4b35da1e43ec3a5b55a64038157
Author: Markus Heiser <markus.heiser@darmarIT.de>
Date: Mon Aug 15 16:08:25 2016 +0200
doc-rst:c-domain: ref-name of a function declaration
Add option 'name' to the "c:function:" directive. With option 'name'
the ref-name of a function can be modified. E.g.::
.. c:function:: int ioctl( int fd, int request )
:name: VIDIOC_LOG_STATUS
The func-name (e.g. ioctl) remains in the output but the ref-name
changed from ``ioctl`` to ``VIDIOC_LOG_STATUS``. The index entry for
this function is also changed to ``VIDIOC_LOG_STATUS`` and the function
can now referenced by::
:c:func:`VIDIOC_LOG_STATUS`
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit e8f5c617f26626ef4915ffa176f4ae02c9e08531
Author: Markus Heiser <markus.heiser@darmarit.de>
Date: Mon Aug 22 15:16:21 2016 -0600
doc-rst: add boilerplate to customize c-domain
Add a sphinx-extension to customize the sphinx c-domain. No functional
changes right yet, just the boilerplate code.
Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
[ jc: coding-style tweak ]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
commit 99ff4d3af80caa91eef5a4b709def6b8b362ce8c
Author: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Fri Aug 19 10:03:59 2016 -0700
Input: jornada720_kbd - switch to using dev_dbg
Switch to using dev_dbg instead of naked printk so that output is uniform
with the other driver messages in the kernel.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit 0f631d87d9a5e3f5f22908b102c8eaad944f390e
Author: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri Aug 19 09:41:47 2016 -0700
Input: jornada720_kbd - get rid of mach/irqs.h include
Switch the jornada720 keyboard driver to obtain its interrupt from the
platform device, rather than via a hard-coded interrupt number obtained
from the mach/irqs.h header.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit a8a7bdc598ec0c355491bc1cac75f8f6b8a1740d
Author: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri Aug 19 09:40:58 2016 -0700
Input: jornada720_kbd - switch to devm_* APIs
Switch the jornada720_kbd driver to use the devm_* APIs. This is in
preparation to removing the mach/irqs.h include from this driver.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit 3f5c5920e627b602db4e13b9010f76ed1d078c54
Author: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri Aug 19 10:15:46 2016 -0700
Input: max77693-haptic - change Krzysztof Kozlowski's email to kernel.org
Change my email address to kernel.org instead of Samsung one for the
purpose of any future contact. The copyrights remain untouched and are
attributed to Samsung.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit e9bf4529d3db9e6291ebfe41be08e6bb76bdf49d
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Fri Aug 19 10:18:32 2016 -0700
Input: pixcir_i2c_ts - remove a useless blank line
This patch fix the following checkpatch report:
Blank lines aren't necessary after an open brace
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit 5ac82f081ac08c5ca551aa6cfc5d81ff26efdf4e
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Fri Aug 19 10:17:18 2016 -0700
Input: pixcir_i2c_ts - remove text about writing to Free Software Foundation
Checkpatch complains about the text suggesting writing to
Free Software Foundation for GPLv2 license copy.
This patch remove that text.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit 8ffef3cc696e9eff67ec79be349407895bffdfc1
Author: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Fri Aug 19 10:16:51 2016 -0700
Input: pixcir_i2c_ts - simplify code with of_device_get_match_data
The usage of of_device_get_match_data reduce the code size a bit.
Furthermore, it is better to use a standard function for
getting the match data.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit d18716542d137beafef2859bdf90d4e0c9a25523
Author: Hans de Goede <hdegoede@redhat.com>
Date: Thu Aug 4 08:21:19 2016 -0700
Input: remove duplicate ft6236 driver
The new(ish) ft6236 simply re-implements the M09 protocol of the
(much) older edt-ft5x06.c driver.
This commit removes this duplicate driver and adds the i2c ids and
dt compatible string to the edt-ft5x06.c driver to keep compatibility.
This commit also adds the standard touchscreen properties as optional
properties to the edt,ft5x06 binding, these were documented in the
focaltech,ft6236 bindingi, but were missing from the edt,ft5x06 doc.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit e3a888a4bff0bef0b256d55c58bc32c99fb44ece
Author: Petr Cvek <petr.cvek@tul.cz>
Date: Fri Aug 19 10:14:29 2016 -0700
Input: ads7846 - remove redundant regulator_disable call
ADS7846 regulator is disabled twice in a row in ads7846_remove(). Valid
one is in ads7846_disable().
Removing the ads7846 module causes warning about unbalanced disables.
...
WARNING: CPU: 0 PID: 29269 at drivers/regulator/core.c:2251 _regulator_disable+0xf8/0x130
unbalanced disables for vads7846
CPU: 0 PID: 29269 Comm: rmmod Tainted: G D W 4.7.0+ #3
Hardware name: HTC Magician
...
show_stack+0x10/0x14
__warn+0xd8/0x100
warn_slowpath_fmt+0x38/0x48
_regulator_disable+0xf8/0x130
regulator_disable+0x34/0x60
ads7846_remove+0x58/0xd4 [ads7846]
spi_drv_remove+0x1c/0x34
__device_release_driver+0x84/0x114
driver_detach+0x8c/0x90
bus_remove_driver+0x5c/0xc8
SyS_delete_module+0x1a0/0x238
ret_fast_syscall+0x0/0x38
Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit 3e29d6bb6433ebfa4e187b1164b80baf720d58c3
Author: Andrew Duggan <aduggan@synaptics.com>
Date: Mon Aug 22 11:28:11 2016 -0700
Input: synaptics-rmi4 - fix register descriptor subpacket map construction
The map_offset variable is specific to the register and needs to be reset
in the loop. Otherwise, subsequent register's subpacket maps will have
their bits set at the wrong index.
Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Tested-by: Nitin Chaudhary <nitinchaudhary1289@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit fae16989be77b09bab86c79233e4b511ea769cea
Author: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Mon Aug 22 13:25:56 2016 -0700
Input: tegra-kbc - fix inverted reset logic
Commit fe6b0dfaba68 ("Input: tegra-kbc - use reset framework")
accidentally converted _deassert to _assert, so there is no code
to wake up this hardware.
Fixes: fe6b0dfaba68 ("Input: tegra-kbc - use reset framework")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit 5cab4d84780573afbf5077ae9c3f919b4f305f20
Author: Hans de Goede <hdegoede@redhat.com>
Date: Mon Aug 22 13:49:59 2016 -0700
Input: silead - use devm_gpiod_get
The silead code is using devm_foo for everything (and does not free
any resources). Except that it is using gpiod_get instead of
devm_gpiod_get (but is not freeing the gpio_desc), change this
to use devm_gpiod_get so that the gpio will be properly released.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
commit 7ac5d7b1a1254ceb4be19ba93ef7a6ee4e7ac382
Author: Mikko Rapeli <mikko.rapeli@iki.fi>
Date: Mon Aug 22 20:32:22 2016 +0200
HSI: hsi_char.h: use __u32 from linux/types.h
Fixes userspace compiler errors like:
linux/hsi/hsi_char.h:51:2: error: unknown type name ‘uint32_t’
Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
commit 67c52cac0c2427af61590c1dbb993457574be00f
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 236a79f45fde4997eaadeb11742222fa11ab8c69
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 6dc9ed33e57d13ea01e429c09b25a8a4fbd440fb
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 9c183490e9443995fb089c96f1574191f59b681e
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 523a338d065deed8578a6660a08e79ae0709bd7f
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 bf36f73716e587da061017ed94fdbb4d50746068
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 333d82a4ec6438da5abeaf15007942269d2c4b4a
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 100b0715792ea234a1e49d512f85d01f2f450ac4
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 5a4982d170de64c554bba1c745ed5b50475bb4e4
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 a403cf91f1ea18de671fba7f56edc6cdf5e93d52
Author: Fengguang Wu <fengguang.wu@intel.com>
Date: Tue Jul 12 07:45:57 2016 -0700
rcu: Disable RCU_PERF_TEST and RCU_TORTURE_TEST for usermode Linux
Usermode Linux currently does not implement arch_irqs_disabled_flags(),
which results in a build failure in TASKS_RCU. Commit 570dd3c74241 ("rcu:
Disable TASKS_RCU for usermode Linux") attempted to fix this by making
TASKS_RCU depend on !UML, which does work in production builds. However,
test builds that enable either RCU_PERF_TEST or RCU_TORTURE_TEST will
select TASKS_RCU, defeating the dependency on !UML. This commit therefore
makes both RCU_PERF_TEST and RCU_TORTURE_TEST also depend on !UML.
The usermode Linux maintainers expect to merge arch_irqs_disabled_flags()
into 4.8, at which point this commit may be reverted.
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit e0d70f18b5d8ace575815c1cc617d8a1512244ea
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue Jun 28 19:52:01 2016 -0700
rcu: First stage expedited documentation
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit becbca8482697b6e9fa850023698df3259babf1b
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri Apr 29 14:57:41 2016 -0700
torture: Affinity waiter tasks away from hotpluggable CPU
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit b7683340e469dc2e0e37a10d57c9c533213e6864
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri Apr 29 14:33:30 2016 -0700
torture: Make waketorture kill test if no hotpluggable CPUs
This commit shuts down the kernel if a shutdown time was specified and
if there were no hotpluggable CPUs.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit e07b0edd917a714bc8b74e494ec9f5ff665bae01
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri Apr 22 06:10:34 2016 -0700
torture: Make waketorture always hotplug the same CPU
This commit causes waketorture to always hotplug the same CPU,
namely, the highest-numbered CPU that can be hotplugged. This
will be used by later commits to force race conditions with
higher probability.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 497bd987bed2ea3373292ce54b53a3a55b231633
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu Mar 24 16:01:57 2016 -0700
waketorture: Add hrtimer support
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 8692b0bbb9ad6c7da5b8aa498569bdbd89901950
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu Mar 24 12:19:52 2016 -0700
waketorture: Add utilization measurement
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 77259c23ae05d90d3bbc43d2cc6236ace279ce72
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed Mar 23 10:43:23 2016 -0700
waketorture: Don't kick unless grace period or request
The current code can result in spurious kicks when there are no grace
periods in progress and no grace-period-related requests. This is
sort of OK for a diagnostic aid, but the resulting ftrace-dump messages
in dmesg are annoying. This commit therefore avoids spurious kicks
in the common case.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit c20aae2f71b80a3a2528800d9dfd43c67b961d4a
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue Mar 22 15:59:51 2016 -0700
waketorture: Update scripting to accommodate waketorture
This commit adds the scripting changes to add support for the shiny
new waketorture kernel module.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 25b5bb1583ab6f553e32d3cf9e37aeb5bc3be525
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Tue Mar 22 15:17:07 2016 -0700
waketorture: Add a wakeup-torture module
This commit adds a wakeup-torture module to assist tracking down an
elusive lost-wakeup problem.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit ff84772684d11e0a040cac23485adc7831287fdd
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 78e9ac29184d1e94ca014fb12afb7f3149d6c4af
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 9bf184979ecbb9b520b22df70e54aeedf89f341e
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 badefb02b9f4cc725f0a460d63cc39ab9006b418
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 66686a0384db093a707c864bf211e2ea246f8267
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 b5218e8113f0456ac864c431d500fb164f1a27d9
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 470048b468a679f124a82887400ac5b756233a19
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 6b95d87c63466a75a1e60e776ef8966ef018485f
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 fc612c88c768a5451233e9aad50ad07f2a11d44d
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 a7e592ee55691d7433299cea988fd371a71bbf57
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 d8cd9e64d2fd11d03ac02e5408266464ad8bdf23
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 f76c97d43e059485517c66bd2dfb3cedf9c32fa4
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 05d3b4b44aa41e0d03320d9fb098486a3a300e1c
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 02b5b7d1e764d72931f48b4c5159a14182bd1cb8
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 8ef9abe100a16badee4c1513fa5d09f78ebb3e78
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 29b7b2d2752c78c6070041c1856700d17af3f4d3
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 d44ec31c1965264b243606ea98d517eb3c03b363
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 aee3a6dd6566e119fa4ac5dabf382542cff5005b
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 46cbc9300504b0c9ee8d11085517625b56cee0be
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 489bb3d252d41392ce52590e49f0ae8782fb016e
Author: SeongJae Park <sj38.park@gmail.com>
Date: Sun Aug 21 16:54:40 2016 +0900
torture: TOROUT_STRING(): Insert a space between flag and message
The TOROUT_STRING() macro does not insert a space between the flag and
the message. In contrast, other similar torture-test dmesg messages
consistently supply a single space character. This difference makes the
output hard to read and to mechanically parse. This commit therefore
adds a space character between flag and message in TOROUT_STRING() output.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit a56fefa2605cf8e125ef09451487f30336128028
Author: SeongJae Park <sj38.park@gmail.com>
Date: Sun Aug 21 16:54:39 2016 +0900
rcuperf: Consistently insert space between flag and message
A few rcuperf dmesg output messages have no space between the flag and
the start of the message. In contrast, every other messages consistently
supplies a single space. This difference makes rcuperf dmesg output
hard to read and to mechanically parse. This commit therefore fixes
this problem by modifying a pr_alert() call and PERFOUT_STRING() macro
function to provide that single space.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 472213a675e21185416101a77102253f93713fa9
Author: SeongJae Park <sj38.park@gmail.com>
Date: Sat Aug 13 15:54:35 2016 +0900
rcutorture: Print out barrier error as document says
Tests for rcu_barrier() were introduced by commit fae4b54f28f0 ("rcu:
Introduce rcutorture testing for rcu_barrier()"). This commit updated
the documentation to say that the "rtbe" field in rcutorture's dmesg
output indicates test failure. However, the code was not updated, only
the documentation. This commit therefore updates the code to match the
updated documentation.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 4ffa66992476c94d8b4d33b2c792d336a400ada2
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu Jun 30 11:56:38 2016 -0700
torture: Add task state to writer-task stall printk()s
This commit adds a dump of the scheduler state for stalled rcutorture
writer tasks. This addition provides yet more debug for the intermittent
"failures to proceed", where grace periods move ahead but the rcutorture
writer tasks fail to do so.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 31257c3c8b7307f106d67345755d937cb5fb8bd4
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Sat Jun 18 07:45:43 2016 -0700
torture: Convert torture_shutdown() to hrtimer
Upcoming changes to the timer wheel introduce significant inaccuracy
and possibly also an ultimate limit on timeout duration. This is a
problem for the current implementation of torture_shutdown() because
(1) shutdown times are user-specified, and can therefore be quite long,
and (2) the torture scripting will kill a test instance that runs for
more than a few minutes longer than scheduled. This commit therefore
converts the torture_shutdown() timed waits to an hrtimer, thus avoiding
too-short torture test runs as well as death by scripting.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
commit f6ac28c367ce61011e346af57ee20f0f23f5d729
Author: Valentin Rothberg <valentinrothberg@gmail.com>
Date: Sat Aug 20 12:16:10 2016 +0200
lib/Kconfig.debug: Fix typo in select statement
Commit 484f29c7430b3 ("bug: Provide toggle for BUG on data corruption")
added a Kconfig select statement on CONFIG_DEBUG_LIST, but the CONFIG_
prefix is only used in Make and C(PP) syntax. Remove the CONFIG_ prefix
to correctly select the Kconfig option DEBUG_LIST.
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Kees Cook <keescook@chromium.org>
commit acc5ebe5c29d007951e3c1d611569b97c71ffd8d
Author: Kees Cook <keescook@chromium.org>
Date: Wed Aug 17 14:42:12 2016 -0700
lkdtm: Add tests for struct list corruption
When building under CONFIG_DEBUG_LIST, list addition and removal will be
sanity-checked. This validates that the check is working as expected by
setting up classic corruption attacks against list manipulations, available
with the new lkdtm tests CORRUPT_LIST_ADD and CORRUPT_LIST_DEL.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
commit 40cd725cfc7fec2635a79814398d4d93d5558ac2
Author: Kees Cook <keescook@chromium.org>
Date: Wed Aug 17 14:42:11 2016 -0700
bug: Provide toggle for BUG on data corruption
The kernel checks for cases of data structure corruption under some
CONFIGs (e.g. CONFIG_DEBUG_LIST). When corruption is detected, some
systems may want to BUG() immediately instead of letting the system run
with known corruption. Usually these kinds of manipulation primitives can
be used by security flaws to gain arbitrary memory write control. This
provides a new config CONFIG_BUG_ON_DATA_CORRUPTION and a corresponding
macro CHECK_DATA_CORRUPTION for handling these situations. Notably, even
if not BUGing, the kernel should not continue processing the corrupted
structure.
This is inspired by similar hardening by Syed Rameez Mustafa in MSM
kernels, and in PaX and Grsecurity, which is likely in response to earlier
removal of the BUG calls in commit 924d9addb9b1 ("list debugging: use
WARN() instead of BUG()").
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
commit 36c956ec858eb4e0bf1730e152f20122c2e8f93d
Author: Kees Cook <keescook@chromium.org>
Date: Wed Aug 17 14:42:10 2016 -0700
list: Split list_del() debug checking into separate function
Similar to the list_add() debug consolidation, this commit consolidates
the debug checking performed during CONFIG_DEBUG_LIST into a new
__list_del_entry_valid() function, and stops list updates when corruption
is found.
Refactored from same hardening in PaX and Grsecurity.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
commit e5bb62b63ae07e930719b02105103ff1dc3e12d0
Author: Kees Cook <keescook@chromium.org>
Date: Wed Aug 17 14:42:09 2016 -0700
rculist: Consolidate DEBUG_LIST for list_add_rcu()
This commit consolidates the debug checking for list_add_rcu() into the
new single __list_add_valid() debug function. Notably, this commit fixes
the sanity check that was added in commit 17a801f4bfeb ("list_debug:
WARN for adding something already in the list"), which wasn't checking
RCU-protected lists.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
commit c69780bdd841801501cef7efbcce95e1ae6826f9
Author: Kees Cook <keescook@chromium.org>
Date: Wed Aug 17 14:42:08 2016 -0700
list: Split list_add() debug checking into separate function
Right now, __list_add() code is repeated either in list.h or in
list_debug.c, but the only differences between the two versions
are the debug checks. This commit therefore extracts these debug
checks into a separate __list_add_valid() function and consolidates
__list_add(). Additionally this new __list_add_valid() function will stop
list manipulations if a corruption is detected, instead of allowing for
further corruption that may lead to even worse conditions.
This is slight refactoring of the same hardening done in PaX and Grsecurity.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
commit 0ffd374b2207a1a0cba9f2dbcc799198482391d5
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu Aug 18 14:57:22 2016 +0200
rcutorture: Convert to hotplug state machine
Install the callbacks via the state machine and let the core invoke
the callbacks on the already online CPUs.
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 0c6d4576c45736f829dc3390ac95181b2ed21bc7
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed Aug 17 14:21:04 2016 +0200
cpu/hotplug: Get rid of CPU_STARTING reference
CPU_STARTING is scheduled for removal. There is no use of it in drivers
and core code uses it only for compatibility with old-style CPU-hotplug
notifiers. This patch removes therefore removes CPU_STARTING from an
RCU-related comment.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 6999aeabbb703a81a204cb6f9f8f151759a99ac4
Author: Wei Yongjun <weiyj.lk@gmail.com>
Date: Sat Aug 20 15:25:32 2016 +0000
spi: spi-fsl-dspi: Drop extra spi_master_put in device remove function
The call sequence spi_alloc_master/spi_register_master/spi_unregister_master
is complete; it reduces the device reference count to zero, which and results
in device memory being freed. The subsequent call to spi_master_put is
unnecessary and results in an access to free memory. Drop it.
Fixes: 9298bc727385 ("spi: spi-fsl-dspi: Remove spi-bitbang")
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
commit 7ec99de36f402618ae44147ac7fa9a07e4757a5f
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu Jun 30 13:58:26 2016 -0700
rcu: Provide exact CPU-online tracking for RCU
Up to now, RCU has assumed that the CPU-online process makes it from
CPU_UP_PREPARE to set_cpu_online() within one jiffy. Given the recent
rise of virtualized environments, this assumption is very clearly
obsolete. Failing to meet this deadline can result in RCU paying
attention to an incoming CPU for one jiffy, then ignoring it until the
grace period following the one in which that CPU sets itself online.
This situation might prove to be fatally disappointing to any RCU
read-side critical sections that had the misfortune to execute during
the time in which RCU was ignoring the slow-to-come-online CPU.
This commit therefore updates RCU's internal CPU state-tracking
information at notify_cpu_starting() time, thus providing RCU with
an exact transition of the CPU's state from offline to online.
Note that this means that incoming CPUs must not use RCU read-side
critical section (other than those of SRCU) until notify_cpu_starting()
time. Note also that the CPU_STARTING notifiers -are- allowed to use
RCU read-side critical sections. (Of course, CPU-hotplug notifiers are
rapidly becoming obsolete, so you need to act fast!)
If a given architecture or CPU family needs to use RCU read-side
critical sections earlier, the call to rcu_cpu_starting() from
notify_cpu_starting() will need to be architecture-specific, with
architectures that need early use being required to hand-place
the call to rcu_cpu_starting() at some point preceding the call to
notify_cpu_starting().
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit 3563a438f124cb0b8cfd350c86de2f26c63d8837
Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Thu Jul 28 09:39:11 2016 -0700
rcu: Avoid redundant quiescent-state chasing
Currently, __note_gp_changes() checks to see if the CPU has slept through
multiple grace periods. If it has, it resynchronizes that CPU's view
of the grace-period state, which includes whether or not the current
grace period needs a quiescent state from this CPU. The fact of this
need (or lack thereof) needs to be in two places, rdp->cpu_no_qs.b.norm
and rdp->core_needs_qs. The former tells RCU's context-switch code to
go get a quiescent state and the latter says that it needs to be reported.
The current code unconditionally sets the former to true, but correctly
sets the latter.
This does not result in failures, but it does unnecessarily increase
the amount of work done on average at context-switch time. This commit
therefore correctly sets both fields.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
commit e77b7041258e11ba198951553d3acf1e371a9053
Author: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Fri Jul 15 12:19:41 2016 -0400
rcu: Don't use modular infrastructure in non-modular code
The Kconfig currently controlling compilation of tree.c is:
init/Kconfig:config TREE_RCU
init/Kconfig: bool
...and update.c and sync.c are "obj-y" meanin…- Loading branch information