Stephen Boyd [Wed, 26 Nov 2014 22:47:09 +0000 (14:47 -0800)]
spmi: Remove shutdown/suspend/resume kernel-doc
These members of the driver structure are not present.
Remove them from the kernel-doc.
Cc: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hans Verkuil [Sun, 23 Nov 2014 14:23:50 +0000 (15:23 +0100)]
carma-fpga-program: drop videobuf dependency
This driver abuses videobuf helper functions. This is a bad idea
because:
1) this driver is completely unrelated to media drivers
2) the videobuf API is deprecated and will be removed eventually
This patch replaces the videobuf functions with the normal DMA kernel
API.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hans Verkuil [Sun, 23 Nov 2014 14:23:49 +0000 (15:23 +0100)]
carma-fpga: drop videobuf dependency
This driver abuses videobuf helper functions. This is a bad idea
because:
1) this driver is completely unrelated to media drivers
2) the videobuf API is deprecated and will be removed eventually
This patch replaces the videobuf functions with the normal DMA kernel
API.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hans Verkuil [Sun, 23 Nov 2014 14:23:48 +0000 (15:23 +0100)]
carma-fpga-program.c: fix compile errors
drivers/misc/carma/carma-fpga-program.c: In function 'fpga_program_dma':
drivers/misc/carma/carma-fpga-program.c:529:2: error: expected ';' before 'if'
if (ret) {
^
drivers/misc/carma/carma-fpga-program.c: In function 'fpga_read':
drivers/misc/carma/carma-fpga-program.c:752:45: error: 'ppos' undeclared (first use in this function)
return simple_read_from_buffer(buf, count, ppos,
^
drivers/misc/carma/carma-fpga-program.c:752:45: note: each undeclared identifier is reported only once for each function it appears in
drivers/misc/carma/carma-fpga-program.c: In function 'fpga_llseek':
drivers/misc/carma/carma-fpga-program.c:765:27: error: 'file' undeclared (first use in this function)
return fixed_size_llseek(file, offset, origin, priv->fw_size);
^
drivers/misc/carma/carma-fpga-program.c:759:9: warning: unused variable 'newpos' [-Wunused-variable]
loff_t newpos;
^
drivers/misc/carma/carma-fpga-program.c: In function 'fpga_read':
drivers/misc/carma/carma-fpga-program.c:754:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
drivers/misc/carma/carma-fpga-program.c: In function 'fpga_llseek':
drivers/misc/carma/carma-fpga-program.c:766:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
scripts/Makefile.build:263: recipe for target 'drivers/misc/carma/carma-fpga-program.o' failed
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pali Rohár [Tue, 18 Nov 2014 14:56:54 +0000 (15:56 +0100)]
i8k: Fix temperature bug handling in i8k_get_temp()
Static array prev[] was incorrectly initialized. It should be initialized to
some "invalid" temperature value (above I8K_MAX_TEMP).
Next, function should store "invalid" value to prev[] (above I8K_MAX_TEMP),
not valid (= I8K_MAX_TEMP) because whole temperature bug handling will not
work.
And last part, to not break existing detection of temperature sensors, register
them also if i8k report too high temperature (above I8K_MAX_TEMP). This is
needed because some sensors are sometimes turned off (e.g sensor on GPU which
can be turned off/on) and in this case SMM report too high value.
To prevent reporting "invalid" values to userspace, return -EINVAL. In this case
sensors which are currently turned off (e.g optimus/powerexpress/enduro gpu)
are reported as "N/A" by lm-sensors package.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Neuling [Fri, 14 Nov 2014 07:09:28 +0000 (18:09 +1100)]
cxl: Name interrupts in /proc/interrupt
Currently all interrupts generated by cxl are named "cxl". This is not very
informative as we can't distinguish between cards, AFUs, error interrupts, user
contexts and user interrupts numbers. Being able to distinguish them is useful
for setting affinity.
This patch gives each of these names in /proc/interrupts.
A two card CAPI system, with afu0.0 having 2 active contexts each with 4 user
IRQs each, will now look like this:
% grep cxl /proc/interrupts
444: 0 OPAL ICS 141312 Level cxl-card1-err
445: 0 OPAL ICS 141313 Level cxl-afu1.0-err
446: 0 OPAL ICS 141314 Level cxl-afu1.0
462: 0 OPAL ICS 2052 Level cxl-afu0.0-pe0-1
463: 75517 OPAL ICS 2053 Level cxl-afu0.0-pe0-2
468: 0 OPAL ICS 2054 Level cxl-afu0.0-pe0-3
469: 0 OPAL ICS 2055 Level cxl-afu0.0-pe0-4
470: 0 OPAL ICS 2056 Level cxl-afu0.0-pe1-1
471: 75506 OPAL ICS 2057 Level cxl-afu0.0-pe1-2
472: 0 OPAL ICS 2058 Level cxl-afu0.0-pe1-3
473: 0 OPAL ICS 2059 Level cxl-afu0.0-pe1-4
502: 1066 OPAL ICS 2050 Level cxl-afu0.0
514: 0 OPAL ICS 2048 Level cxl-card0-err
515: 0 OPAL ICS 2049 Level cxl-afu0.0-err
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Munsie [Fri, 14 Nov 2014 06:37:50 +0000 (17:37 +1100)]
CXL: Return error to PSL if IRQ demultiplexing fails & print clearer warning
If an AFU has a hardware bug that causes it to acknowledge a context
terminate or remove while that context has outstanding transactions, it
is possible for the kernel to receive an interrupt for that context
after we have removed it from the context list.
The kernel will not be able to demultiplex the interrupt (or worse - if
we have already reallocated the process handle we could mis-attribute it
to the new context), and printed a big scary warning.
It did not acknowledge the interrupt, which would effectively halt
further translation fault processing on the PSL.
This patch makes the warning clearer about the likely cause of the issue
(i.e. hardware bug) to make it obvious to future AFU designers of what
needs to be fixed. It also prints out the process handle which can then
be matched up with hardware and software traces for debugging.
It also acknowledges the interrupt to the PSL with either an address
error or acknowledge, so that the PSL can continue with other
translations.
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pankaj Dubey [Thu, 13 Nov 2014 08:42:49 +0000 (14:12 +0530)]
coresight-replicator: remove .owner field for driver
There is no need of .owner field for driver using
module_platform_driver.
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pankaj Dubey [Thu, 13 Nov 2014 08:42:48 +0000 (14:12 +0530)]
coresight: fixed comments in coresight.h
fixes following minor issues in code comments in coresight.h
- typo %s/enpoint/endpoint
- alignment of comment section for struct coresight_desc
- correction of comment for struct coresight_connection and
struct coresight_device.
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pankaj Dubey [Thu, 13 Nov 2014 08:42:47 +0000 (14:12 +0530)]
coresight: fix typo in comment in coresight-priv.h
fixes a typo %s/eveyone/everyone/ in function CS_UNLOCK.
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mathieu Poirier [Wed, 12 Nov 2014 23:36:59 +0000 (16:36 -0700)]
coresight: bindings for coresight drivers
Coresight IP blocks allow for the support of HW assisted tracing
on ARM SoCs. Bindings for the currently available blocks are
presented herein.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mathieu Poirier [Mon, 10 Nov 2014 21:06:42 +0000 (14:06 -0700)]
coresight: Adding ABI documentation
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
NeilBrown [Wed, 19 Nov 2014 03:04:20 +0000 (14:04 +1100)]
w1: support auto-load of w1_bq27000 module.
1/ change request_module call to zero-pad single digit
family numbers. This appears to be the intention of
the code, but not what it actually does.
This means that the alias created for W1_FAMILY_SMEM_01
might actually be useful.
2/ Define a family name for the BQ27000 battery charge monitor.
Unfortunately this is the same number as W1_FAMILY_SMEM_01
so if both a compiled on a system, one module might need to
be blacklisted.
3/ Add a MODULE_ALIAS for the bq27000.
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Fries [Tue, 11 Nov 2014 02:19:37 +0000 (20:19 -0600)]
w1: avoid potential u16 overflow
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David Fries <David@Fries.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Fries [Tue, 11 Nov 2014 02:19:36 +0000 (20:19 -0600)]
cn: verify msg->len before making callback
The struct cn_msg len field comes from userspace and needs to be
validated. More logical to do so here where the cn_msg pointer is
pulled out of the sk_buff than the callback which is passed cn_msg *
and might assume no validation is needed.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David Fries <David@Fries.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Wed, 19 Nov 2014 15:01:39 +0000 (17:01 +0200)]
mei: export fw status registers through sysfs
The interface is for applications that monitor
the fw health.
We use device_create_with_groups interface
to register attribute with the mei class device
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Usyskin [Wed, 19 Nov 2014 15:01:38 +0000 (17:01 +0200)]
mei: read and print all six FW status registers
ME devices prior to PCH8 (Lynx Point) have two FW status registers,
on PCH8 and newer excluding txe there are six FW status registers.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Mon, 17 Nov 2014 22:13:21 +0000 (00:13 +0200)]
mei: txe: add cherrytrail device id
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Wed, 12 Nov 2014 21:42:14 +0000 (23:42 +0200)]
mei: kill cached host and me csr values
Kill host_hw_status and me_hw_state from me hw structure that used
to cache host and me csr values.
We do not use the cached values across the function calls anymore
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Thierry Reding [Mon, 10 Nov 2014 15:09:56 +0000 (16:09 +0100)]
misc: Remove unused subdirectory
Commit
783c8f4c8445 ("soc/tegra: Add efuse driver for Tegra") added a
fuse directory in drivers/misc along with a Makefile that were never
used. They were leftovers from an earlier version of the patch series.
Reported-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dexuan Cui [Tue, 25 Nov 2014 04:32:43 +0000 (20:32 -0800)]
hv: hv_balloon: avoid memory leak on alloc_error of 2MB memory block
If num_ballooned is not 0, we shouldn't neglect the
already-partially-allocated 2MB memory block(s).
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dexuan Cui [Thu, 20 Nov 2014 05:51:22 +0000 (21:51 -0800)]
tools: hv: ignore ENOBUFS and ENOMEM in the KVP daemon
Under high memory pressure and very high KVP R/W test pressure, the netlink
recvfrom() may transiently return ENOBUFS to the daemon -- we found this
during a 2-week stress test.
We'd better not terminate the daemon on the failure, because a typical KVP
user will re-try the R/W and hopefully it will succeed next time.
We can also ignore the errors on sending.
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vitaly Kuznetsov [Mon, 10 Nov 2014 16:37:02 +0000 (17:37 +0100)]
Tools: hv: vssdaemon: skip all filesystems mounted readonly
Instead of making a list of exceptions for readonly filesystems
in addition to iso9660 we already have it is better to skip freeze
operation for all readonly-mounted filesystems.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Acked-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vitaly Kuznetsov [Mon, 10 Nov 2014 16:37:01 +0000 (17:37 +0100)]
Tools: hv: vssdaemon: report freeze errors
When ioctl(fd, FIFREEZE, 0) results in an error we cannot report it
to syslog instantly since that can cause write to a frozen disk.
However, the name of the filesystem which caused the error and errno
are valuable and we would like to get a nice human-readable message
in the log. Save errno before calling vss_operate(VSS_OP_THAW) and
report the error right after.
Unfortunately, FITHAW errors cannot be reported the same way as we
need to finish thawing all filesystems before calling syslog().
We should also avoid calling endmntent() for the second time in
case we encountered an error during freezing of '/' as it usually
results in SEGSEGV.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Acked-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vitaly Kuznetsov [Thu, 6 Nov 2014 17:21:25 +0000 (18:21 +0100)]
Drivers: hv: kvp,vss: Fast propagation of userspace communication failure
If we fail to send a message to userspace daemon with cn_netlink_send()
there is no need to wait for userspace to reply as it is not going to
happen. This happens when kvp or vss daemon is stopped after a successful
handshake. Report HV_E_FAIL immediately and cancel the timeout job so
host won't receive two failures.
Use pr_warn() for VSS and pr_debug() for KVP deliberately as VSS request
are rare and result in a failed backup. KVP requests are much more frequent
after a successful handshake so avoid flooding logs. It would be nice to
have an ability to de-negotiate with the host in case userspace daemon gets
disconnected so we won't receive new requests. But I'm not sure it is
possible.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vitaly Kuznetsov [Thu, 6 Nov 2014 17:21:24 +0000 (18:21 +0100)]
Drivers: hv: vss: Introduce timeout for communication with userspace
In contrast with KVP there is no timeout when communicating with
userspace VSS daemon. In case it gets stuck performing freeze/thaw
operation no message will be sent to the host so it will take very
long (around 10 minutes) before backup fails. Introduce 10 second
timeout using schedule_delayed_work().
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Tue, 25 Nov 2014 01:12:31 +0000 (17:12 -0800)]
Merge tag 'extcon-next-for-3.19' of git://git./linux/kernel/git/chanwoo/extcon into char-misc-testing
Update extcon for v3.19
This patchset fix minor issue of extcon driver.
Detailed description for patchset:
- Fix typo and change jig cable name of extcon-max77693.c
- Update the extcon_get_edev_by_phandle() because previous extcon_get_edev_by_phandle()
considered the platform device driver. So, this modification supports
OF-based extcon lookup method by using the list of extcon devices.
Krzysztof Kozlowski [Wed, 12 Nov 2014 15:28:09 +0000 (16:28 +0100)]
extcon: max14577: Fix obvious typo in company name in copyright
Fix a typo in name of company in copyright comment.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Krzysztof Kozlowski [Wed, 22 Oct 2014 08:45:40 +0000 (10:45 +0200)]
extcon: max77693: Fix cable name of JIG_UART_ON
When JIG was set to "boot on" mode, the UART connection did not work
because it was assigned to Dock-Car cable (path: audio), not JIG-UART-ON
cable.
This was introduced in
39bf369e4ed3 ("extcon: max77693: Add support dock
device and buttons") while adding dock features.
Assign the JIG-UART-ON back to UART path.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[cw00.choi: Modify the patch name to remove specific board name]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Tomasz Figa [Thu, 16 Oct 2014 13:11:44 +0000 (15:11 +0200)]
extcon: Implement OF-based extcon lookup properly
Platform bus is not the only way to have extcon devices, so current
implementation of of_extcon_get_extcon_dev() is broken. Also using
parent device node only to get device name is quite ugly.
This patch reimplements of_extcon_get_extcon_dev() to do exactly the
same as extcon_get_extcon_dev() but instead of comparing names, compare
node pointers.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
[mszyprow: simplified the code]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Greg Kroah-Hartman [Sat, 15 Nov 2014 00:49:49 +0000 (16:49 -0800)]
Revert "misc: always assign miscdevice to file->private_data in open()"
This reverts commit
32eca22180804f71b06b63fd29b72f58be8b3c47.
Changing core kernel code to operate in a different manner, without a
build-time breakage is tough to do and ensure you got it right. There
are lots of problems popping up due to this change, so let's revert it
for now as it is not safe to merge to the tree at this point in time.
Cc: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Sat, 15 Nov 2014 00:49:20 +0000 (16:49 -0800)]
Revert "fbdev: pxa3xx-gcu: remove redundant implementation of open()"
This reverts commit
2bfeeca107591134bf9a40945c50d337bf858612.
Not needed after the next patch is applied.
Cc: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Sat, 15 Nov 2014 00:48:56 +0000 (16:48 -0800)]
Revert "char: misc: document behaviour of open()"
This reverts commit
965ab29ba09d75056a6c9b0f707cd1c2cc91188f.
This is causing way more problems than it is worth.
Cc: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Valentin Rothberg [Sat, 8 Nov 2014 19:56:35 +0000 (20:56 +0100)]
checkkconfigsymbols.py: improve detection of defects
This patch improves the detection of defects by updating the
regular expression to find Kconfig identifiers in the source
code, and fixes some cases of false positives. The following
changes are made:
- improve regex to find Kconfig identifiers in the source
- exclude .log files from analysis
- improve filtering of false positives (e.g, CONFIG_XXX)
- change output format from (feature:\tlist) to (feature\tlist)
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mathieu Poirier [Mon, 3 Nov 2014 18:07:46 +0000 (11:07 -0700)]
ARM: removing support for etb/etm in "arch/arm/kernel/"
Removing minimal support for etb/etm to favour an implementation
that is more flexible, extensible and capable of handling more
platforms.
Also removing the only client of the old driver. That code can
easily be replaced by entries for etb/etm in the device tree.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Xia Kaixu [Mon, 3 Nov 2014 18:07:45 +0000 (11:07 -0700)]
coresight: adding basic support for D01 board
Support for 16 PTMs, funnel, TPIU and replicator connected
to the ETB are included.
Signed-off-by: Xia Kaixu <kaixu.xia@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mathieu Poirier [Mon, 3 Nov 2014 18:07:44 +0000 (11:07 -0700)]
coresight: adding basic support for Vexpress TC2
Support for the 2 PTMs, 3 ETMs, funnel, TPIU and replicator
connected to the ETB are included. Proper handling of the
ITM and the replicator linked to it along with the CTIs
and SWO are not included.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mathieu Poirier [Mon, 3 Nov 2014 18:07:43 +0000 (11:07 -0700)]
coresight: adding support for beagle and beagleXM
Currently supporting ETM and ETB. Support for TPIU
and SDTI are yet to be added.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mathieu Poirier [Mon, 3 Nov 2014 18:07:42 +0000 (11:07 -0700)]
coresight: documentation for coresight framework and drivers
Documentation containing an explanation on what the framework
provides and the drivers working with it. A minimal example
on how to use the functionality is also provided.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pratik Patel [Mon, 3 Nov 2014 18:07:41 +0000 (11:07 -0700)]
coresight-etm: add CoreSight ETM/PTM driver
This driver manages CoreSight ETM (Embedded Trace Macrocell) that
supports processor tracing. Currently supported version are ARM
ETMv3.x and PTM1.x.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
coresight-etm3x: adding missing error checking
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pratik Patel [Mon, 3 Nov 2014 18:07:40 +0000 (11:07 -0700)]
coresight-replicator: add CoreSight Replicator driver
This driver manages non-configurable CoreSight Replicator that
takes a single input trace data stream and replicates it to
produce two identical trace data output streams. Replicators
are typically used to route single interleaved trace data
stream to two or more sinks.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pratik Patel [Mon, 3 Nov 2014 18:07:39 +0000 (11:07 -0700)]
coresight-funnel: add CoreSight Funnel driver
This driver manages CoreSight Funnel which acts as a link.
Funnels have multiple input ports (typically 8) each of which
represents an input trace data stream. These multiple input trace
data streams are interleaved into a single output stream coming
out of the Funnel.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pratik Patel [Mon, 3 Nov 2014 18:07:38 +0000 (11:07 -0700)]
coresight-etb: add CoreSight ETB driver
This driver manages CoreSight ETB (Embedded Trace Buffer) which
acts as a circular buffer sink collecting generated trace data.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pratik Patel [Mon, 3 Nov 2014 18:07:37 +0000 (11:07 -0700)]
coresight-tpiu: add CoreSight TPIU driver
This driver manages CoreSight TPIU (Trace Port Interface Unit)
which acts as a sink. TPIU is typically connected to some offchip
hardware hosting a storage buffer.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pratik Patel [Mon, 3 Nov 2014 18:07:36 +0000 (11:07 -0700)]
coresight-tmc: add CoreSight TMC driver
This driver manages CoreSight TMC (Trace Memory Controller) which
can act as a link or a sink depending upon its configuration. It
can present itself as an ETF (Embedded Trace FIFO) or ETR
(Embedded Trace Router).
ETF when configured in circular buffer mode acts as a trace
collection sink. When configured in HW fifo mode it acts as link.
ETR always acts as a sink and can be used to route data to memory
allocated in RAM.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pratik Patel [Mon, 3 Nov 2014 18:07:35 +0000 (11:07 -0700)]
coresight: add CoreSight core layer framework
CoreSight components are compliant with the ARM CoreSight
architecture specification and can be connected in various
topologies to suit a particular SoC tracing needs. These trace
components can generally be classified as sources, links and
sinks. Trace data produced by one or more sources flows through
the intermediate links connecting the source to the currently
selected sink.
The CoreSight framework provides an interface for the CoreSight trace
drivers to register themselves with. It's intended to build up a
topological view of the CoreSight components and configure the
correct serie of components on user input via sysfs.
For eg., when enabling a source, the framework builds up a path
consisting of all the components connecting the source to the
currently selected sink(s) and enables all of them.
The framework also supports switching between available sinks
and provides status information to user space applications
through the debugfs interface.
Signed-off-by: Pratik Patel <pratikp@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Fri, 7 Nov 2014 19:26:15 +0000 (11:26 -0800)]
Revert "driver core: Fix unbalanced device reference in drivers_probe"
This reverts commit
bb34cb6bbd287b57e955bc5cfd42fcde6aaca279.
Wrong patch for the wrong branch, sorry for the noise...
Cc: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dmitry Eremin-Solenikov [Mon, 20 Oct 2014 20:29:24 +0000 (00:29 +0400)]
pcmcia: sa1111: pass sa1111_dev to jornada720 code
All other sa1111 platforms pass sa1111_dev instance to platform-specific
code. Follow this approach for Jornada720 platform code.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dmitry Eremin-Solenikov [Mon, 20 Oct 2014 20:29:23 +0000 (00:29 +0400)]
pcmcia: sa1111: pass sa1111_dev to badge4-specific code
Pass sa1111_dev to platform-specific init code, as it is done by lubbock
and neponset. This removes a compilation warnings:
drivers/pcmcia/sa1111_badge4.c: In function 'pcmcia_badge4_init':
drivers/pcmcia/sa1111_badge4.c:147:5: warning: passing argument 1 of 'sa1111_pcmcia_add' from incompatible pointer type [enabled by default]
In file included from drivers/pcmcia/sa1111_badge4.c:26:0:
drivers/pcmcia/sa1111_generic.h:15:5: note: expected 'struct sa1111_dev *' but argument is of type 'struct device *'
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Carpenter [Wed, 29 Oct 2014 08:42:50 +0000 (11:42 +0300)]
hangcheck-timer: cleanup casting in hangcheck_init()
The 32 bit addition "(hangcheck_margin + hangcheck_tick)" could
potentially overflow. It triggers a static checker warning to have an
overflowed addition followed by a no-op cast. I have moved the cast so
that the addition can't overflow.
Also I removed the unneeded cast on the following line since both
"hangcheck_tsc_margin" and "TIMER_FREQ" are already 64 bit types.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Stein [Sat, 25 Oct 2014 12:26:13 +0000 (14:26 +0200)]
W1: ds2490: Increase timeout when waiting for status
Adjust the bulk message timeout to the other ones (1000ms). Otherwise the
following dmesg errors can be seen on a Raspberry Pi:
[ 31.492386] Failed to read 1-wire data from 0x81: err=-110.
[ 31.504168] 0x81: count=-110, status:
[ 31.613404] Failed to read 1-wire data from 0x81: err=-110.
[ 31.621915] 0x81: count=-110, status:
[ 43.260968] Failed to read 1-wire data from 0x81: err=-110.
[ 43.270998] 0x81: count=-110, status:
[ 43.379959] Failed to read 1-wire data from 0x81: err=-110.
[ 43.388854] 0x81: count=-110, status:
Signed-off-by: Alexander Stein <alexanders83@web.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alex Williamson [Fri, 31 Oct 2014 17:13:07 +0000 (11:13 -0600)]
driver core: Fix unbalanced device reference in drivers_probe
bus_find_device_by_name() acquires a device reference which is never
released. This results in an object leak, which on older kernels
results in failure to release all resources of PCI devices. libvirt
uses drivers_probe to re-attach devices to the host after assignment
and is therefore a common trigger for this leak.
Example:
# cd /sys/bus/pci/
# dmesg -C
# echo 1 > devices/0000\:01\:00.0/sriov_numvfs
# echo 0 > devices/0000\:01\:00.0/sriov_numvfs
# dmesg | grep 01:10
pci 0000:01:10.0: [8086:10ca] type 00 class 0x020000
kobject: '0000:01:10.0' (
ffff8801d79cd0a8): kobject_add_internal: parent: '0000:00:01.0', set: 'devices'
kobject: '0000:01:10.0' (
ffff8801d79cd0a8): kobject_uevent_env
kobject: '0000:01:10.0' (
ffff8801d79cd0a8): fill_kobj_path: path = '/devices/pci0000:00/0000:00:01.0/0000:01:10.0'
kobject: '0000:01:10.0' (
ffff8801d79cd0a8): kobject_uevent_env
kobject: '0000:01:10.0' (
ffff8801d79cd0a8): fill_kobj_path: path = '/devices/pci0000:00/0000:00:01.0/0000:01:10.0'
kobject: '0000:01:10.0' (
ffff8801d79cd0a8): kobject_uevent_env
kobject: '0000:01:10.0' (
ffff8801d79cd0a8): fill_kobj_path: path = '/devices/pci0000:00/0000:00:01.0/0000:01:10.0'
kobject: '0000:01:10.0' (
ffff8801d79cd0a8): kobject_cleanup, parent (null)
kobject: '0000:01:10.0' (
ffff8801d79cd0a8): calling ktype release
kobject: '0000:01:10.0': free name
[kobject freed as expected]
# dmesg -C
# echo 1 > devices/0000\:01\:00.0/sriov_numvfs
# echo 0000:01:10.0 > drivers_probe
# echo 0 > devices/0000\:01\:00.0/sriov_numvfs
# dmesg | grep 01:10
pci 0000:01:10.0: [8086:10ca] type 00 class 0x020000
kobject: '0000:01:10.0' (
ffff8801d79ce0a8): kobject_add_internal: parent: '0000:00:01.0', set: 'devices'
kobject: '0000:01:10.0' (
ffff8801d79ce0a8): kobject_uevent_env
kobject: '0000:01:10.0' (
ffff8801d79ce0a8): fill_kobj_path: path = '/devices/pci0000:00/0000:00:01.0/0000:01:10.0'
kobject: '0000:01:10.0' (
ffff8801d79ce0a8): kobject_uevent_env
kobject: '0000:01:10.0' (
ffff8801d79ce0a8): fill_kobj_path: path = '/devices/pci0000:00/0000:00:01.0/0000:01:10.0'
kobject: '0000:01:10.0' (
ffff8801d79ce0a8): kobject_uevent_env
kobject: '0000:01:10.0' (
ffff8801d79ce0a8): fill_kobj_path: path = '/devices/pci0000:00/0000:00:01.0/0000:01:10.0'
[no free]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Thierry Reding [Thu, 2 Oct 2014 07:26:16 +0000 (09:26 +0200)]
pch_phub: Build context save/restore only for PM
The pch_phub_save_reg_conf() and pch_phub_restore_reg_conf() functions
are only used for suspend/resume support (i.e. when PM is enabled). If
PM is disabled they don't need to be built.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Thu, 6 Nov 2014 16:23:39 +0000 (16:23 +0000)]
misc: genwqe: check for error from get_user_pages_fast()
`genwqe_user_vmap()` calls `get_user_pages_fast()` and if the return
value is less than the number of pages requested, it frees the pages and
returns an error (`-EFAULT`). However, it fails to consider a negative
error return value from `get_user_pages_fast()`. In that case, the test
`if (rc < m->nr_pages)` will be false (due to promotion of `rc` to a
large `unsigned int`) and the code will continue on to call
`genwqe_map_pages()` with an invalid list of page pointers. Fix it by
bailing out if `get_user_pages_fast()` returns a negative error value.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: <stable@vger.kernel.org> # 3.14.x # 3.15.x # 3.16.x # 3.17.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kepplinger [Wed, 29 Oct 2014 19:22:58 +0000 (20:22 +0100)]
char: misc: document behaviour of open()
an open syscall now assignes file->private_data to a pointer to the
miscdevice structure. This reminds driver developers not to duplicate
code if they need this.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kepplinger [Wed, 29 Oct 2014 19:22:57 +0000 (20:22 +0100)]
fbdev: pxa3xx-gcu: remove redundant implementation of open()
the miscdevice core now does the work in any case.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Kepplinger [Wed, 29 Oct 2014 19:22:56 +0000 (20:22 +0100)]
misc: always assign miscdevice to file->private_data in open()
As of now, a miscdevice driver has to provide an implementation of
the open() file operation if it wants to have misc_open() assign a
pointer to struct miscdevice to file->private_data for other file
operations to use (given the user calls open()).
This leads to situations where a miscdevice driver that doesn't need
internal operations during open() has to implement open() that only
returns immediately, in order to use the data in private_data in other
fops.
This provides consistent behaviour for miscdevice developers and will
always provide the pointer in private_data. A driver's open() fop would,
of course, just overwrite it, when using private_data itself.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vitaly Kuznetsov [Tue, 4 Nov 2014 12:40:11 +0000 (13:40 +0100)]
Drivers: hv: vmbus: Fix a race condition when unregistering a device
When build with Debug the following crash is sometimes observed:
Call Trace:
[<
ffffffff812b9600>] string+0x40/0x100
[<
ffffffff812bb038>] vsnprintf+0x218/0x5e0
[<
ffffffff810baf7d>] ? trace_hardirqs_off+0xd/0x10
[<
ffffffff812bb4c1>] vscnprintf+0x11/0x30
[<
ffffffff8107a2f0>] vprintk+0xd0/0x5c0
[<
ffffffffa0051ea0>] ? vmbus_process_rescind_offer+0x0/0x110 [hv_vmbus]
[<
ffffffff8155c71c>] printk+0x41/0x45
[<
ffffffffa004ebac>] vmbus_device_unregister+0x2c/0x40 [hv_vmbus]
[<
ffffffffa0051ecb>] vmbus_process_rescind_offer+0x2b/0x110 [hv_vmbus]
...
This happens due to the following race: between 'if (channel->device_obj)' check
in vmbus_process_rescind_offer() and pr_debug() in vmbus_device_unregister() the
device can disappear. Fix the issue by taking an additional reference to the
device before proceeding to vmbus_device_unregister().
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vitaly Kuznetsov [Fri, 24 Oct 2014 10:20:27 +0000 (12:20 +0200)]
Drivers: hv: util: make struct hv_do_fcopy match Hyper-V host messages
An attempt to fix fcopy on i586 (
bc5a5b0 Drivers: hv: util: Properly pack the data
for file copy functionality) led to a regression on x86_64 (and actually didn't fix
i586 breakage). Fcopy messages from Hyper-V host come in the following format:
struct do_fcopy_hdr | 36 bytes
0000 | 4 bytes
offset | 8 bytes
size | 4 bytes
data | 6144 bytes
On x86_64 struct hv_do_fcopy matched this format without ' __attribute__((packed))'
and on i586 adding ' __attribute__((packed))' to it doesn't change anything. Keep
the structure packed and add padding to match re reality. Tested both i586 and x86_64
on Hyper-V Server 2012 R2.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vitaly Kuznetsov [Wed, 22 Oct 2014 16:07:11 +0000 (18:07 +0200)]
tools: hv: introduce -n/--no-daemon option
All tools/hv daemons do mandatory daemon() on startup. However, no pidfile
is created, this make it difficult for an init system to track such daemons.
Modern linux distros use systemd as their init system. It can handle the
daemonizing by itself, however, it requires a daemon to stay in foreground
for that. Some distros already carry distro-specific patch for hv tools
which switches off daemon().
Introduce -n/--no-daemon option for all 3 daemons in hv/tools. Parse options
with getopt() to make this part easily expandable.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dexuan Cui [Fri, 26 Sep 2014 04:52:04 +0000 (21:52 -0700)]
Tools: hv: vssdaemon: ignore the EBUSY on multiple freezing the same partition
If a partition appears mounted more than once in /proc/mounts, vss_do_freeze()
succeeds only for the first time and gets EBUSY (on freeze) or EINVAL (on
thaw) for the second time. The patch ignores these to make the backup feature
work.
Also improved the error handling in case a freeze operation fails.
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cristian Stoica [Thu, 9 Oct 2014 12:00:27 +0000 (15:00 +0300)]
uio: support memory sizes larger than 32 bits
This is a completion to
27a90700a4275c5178b883b65927affdafa5185c
The size field is also increased to allow values larger than 32 bits
on platforms that have more than 32 bit physical addresses.
Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cristian Stoica [Tue, 7 Oct 2014 15:25:43 +0000 (18:25 +0300)]
devres: support sizes greater than an unsigned long
As in
4f452e8aa492c0b8028ca9b4bdb4d018ba28c6c7, use resource_size_t
to accomodate sizes greater than the size of an unsigned long int on
platforms that have more than 32 bit physical addresses.
Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Wed, 5 Nov 2014 09:44:48 +0000 (11:44 +0200)]
mei: fix hbm MEI_HBM_STARTED ambiguity
We have MEI_HBM_STARTED in two contexts one
after start message was received and second
after enumeration was completed.
Because after start message reception we move
immediately to the enumeration state, we need
only the later meaning.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Wed, 5 Nov 2014 16:18:52 +0000 (18:18 +0200)]
mei: nfc: clean nfc internal struct on host exit
NFC internal structure cleaning was dropped by commit
commit
487056932d372cc4f6c636f21a928d6667b151d7
Author: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon Feb 17 15:13:19 2014 +0200
mei: Remove all bus devices from the mei_dev list when stopping the MEI
When stopping the MEI, we should remove and potentially unregister
all bus devices queued on the mei_dev linked list.
We allocate nfc_dev and free it across the reset
so we do not keep it in dirty state
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pali Rohár [Fri, 17 Oct 2014 22:17:49 +0000 (00:17 +0200)]
i8k: Add MODULE_DEVICE_TABLE macro
This patch adds MODULE_DEVICE_TABLE macro so i8k.ko module can be automatically
loaded based on dmi system alias.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pali Rohár [Fri, 10 Oct 2014 09:12:47 +0000 (11:12 +0200)]
i8k: Add support for Dell Latitude E6440
Dell Latitude E6440 needs same settings as E6540.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Valentin Rothberg [Sat, 27 Sep 2014 14:30:45 +0000 (16:30 +0200)]
checkkconfigsymbols.sh: reimplementation in python
The scripts/checkkconfigsymbols.sh script searches Kconfig features
in the source code that are not defined in Kconfig. Such identifiers
always evaluate to false and are the source of various kinds of bugs.
However, the shell script is slow and it does not detect such broken
references in Kbuild and Kconfig files (e.g., ``depends on UNDEFINED´´).
Furthermore, it generates false positives. The script is also hard to
read and understand, and is thereby difficult to maintain.
This patch replaces the shell script with an implementation in Python,
which:
(a) detects the same bugs, but does not report previous false positives
(b) additionally detects broken references in Kconfig and all
non-Kconfig files, such as Kbuild, .[cSh], .txt, .sh, defconfig, etc.
(c) is up to 75 times faster than the shell script
(d) only checks files under version control
The new script reduces the runtime on my machine (i7-2620M, 8GB RAM, SSD)
from 3m47s to 0m3s, and reports 938 broken references in Linux v3.17-rc1;
419 additional reports of which 16 are located in Kconfig files,
287 in defconfigs, 63 in ./Documentation, 1 in Kbuild.
Moreover, we intentionally include references in comments, which have been
ignored until now. Such comments may be leftovers of features that have
been removed or renamed in Kconfig (e.g., ``#endif /* CONFIG_MPC52xx */´´).
These references can be misleading and should be removed or replaced.
Note that the output format changed from (file list <tab> feature) to
(feature <tab> file list) as it simplifies the detection of the Kconfig
feature for long file lists.
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Stefan Hengelein <stefan.hengelein@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bo Shen [Wed, 24 Sep 2014 09:33:55 +0000 (17:33 +0800)]
misc: atmel-ssc: prepare clock only when request
Prepare SSC clock only when request SSC channel, the clock will be
enabled when initialize the SSC.
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Usyskin [Wed, 29 Oct 2014 21:50:58 +0000 (23:50 +0200)]
mei: hbm: use client specific print functions
We have host client in connect/disconnect response processors,
so use client print functions to simplify and unify code.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Tue, 28 Oct 2014 07:39:39 +0000 (09:39 +0200)]
mei: debugfs: display also connectionless clients
<debugfs>meiX/meclients: display also fixed/connectionless clients
Use better name for fixed client field:
fixed_address is boolean and indicates whether a client
is fixed or dynamic.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Thu, 2 Oct 2014 10:39:32 +0000 (13:39 +0300)]
mei: use local cl variables in wd and amthif
Use local cl variable instead of dev->iamthif_cl and dev->wd_cl
as the first step to use dynamic allocation of these clients
as their are not supported on all platforms
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Usyskin [Thu, 2 Oct 2014 10:39:31 +0000 (13:39 +0300)]
mei: drop unneeded client NULL check in cb structure
The pointer to client in the callback structure (cb->cl)
can't be NULL with current locking.
We can drop check and warnings as in some cases this just
uselessly complicates the code flow.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Sun, 2 Nov 2014 23:01:51 +0000 (15:01 -0800)]
Linux 3.18-rc3
Linus Torvalds [Sun, 2 Nov 2014 22:45:52 +0000 (14:45 -0800)]
Merge tag 'for-linus-
20141102' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Brian Norris:
"Three main MTD fixes for 3.18:
- A regression from 3.16 which was noticed in 3.17. With the
restructuring of the m25p80.c driver and the SPI NOR library
framework, we omitted proper listing of the SPI device IDs. This
means m25p80.c wouldn't auto-load (modprobe) properly when built as
a module. For now, we duplicate the device IDs into both modules.
- The OMAP / ELM modules were depending on an implicit link ordering.
Use deferred probing so that the new link order (in 3.18-rc) can
still allow for successful probing.
- Fix suspend/resume support for LH28F640BF NOR flash"
* tag 'for-linus-
20141102' of git://git.infradead.org/linux-mtd:
mtd: cfi_cmdset_0001.c: fix resume for LH28F640BF chips
mtd: omap: fix mtd devices not showing up
mtd: m25p80,spi-nor: Fix module aliases for m25p80
mtd: spi-nor: make spi_nor_scan() take a chip type name, not spi_device_id
mtd: m25p80: get rid of spi_get_device_id
Linus Torvalds [Sun, 2 Nov 2014 22:39:35 +0000 (14:39 -0800)]
Merge tag 'scsi-for-linus' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of six patches consisting of:
- two MAINTAINER updates
- two scsi-mq fixs for the old parallel interface (not every request
is tagged and we need to set the right flags to populate the SPI
tag message)
- a fix for a memory leak in scatterlist traversal caused by a
preallocation update in 3.17
- an ipv6 fix for cxgbi"
[ The scatterlist fix also came in separately through the block layer tree ]
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
MAINTAINERS: ufs - remove self
MAINTAINERS: change hpsa and cciss maintainer
libcxgbi : support ipv6 address host_param
scsi: set REQ_QUEUE for the blk-mq case
Revert "block: all blk-mq requests are tagged"
lib/scatterlist: fix memory leak with scsi-mq
Linus Torvalds [Sun, 2 Nov 2014 22:27:30 +0000 (14:27 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Nothing too astounding or major: radeon, i915, vmwgfx, armada and
exynos.
Biggest ones:
- vmwgfx has one big locking regression fix
- i915 has come displayport fixes
- radeon has some stability and a memory alloc failure
- armada and exynos have some vblank fixes"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (24 commits)
drm/exynos: correct connector->dpms field before resuming
drm/exynos: enable vblank after DPMS on
drm/exynos: init kms poll at the end of initialization
drm/exynos: propagate plane initialization errors
drm/exynos: vidi: fix build warning
drm/exynos: remove explicit encoder/connector de-initialization
drm/exynos: init vblank with real number of crtcs
drm/vmwgfx: Filter out modes those cannot be supported by the current VRAM size.
drm/vmwgfx: Fix hash key computation
drm/vmwgfx: fix lock breakage
drm/i915/dp: only use training pattern 3 on platforms that support it
drm/radeon: remove some buggy dead code
drm/i915: Ignore VBT backlight check on Macbook 2, 1
drm/radeon: remove invalid pci id
drm/radeon: dpm fixes for asrock systems
radeon: clean up coding style differences in radeon_get_bios()
drm/radeon: Use drm_malloc_ab instead of kmalloc_array
drm/radeon/dpm: disable ulv support on SI
drm/i915: Fix GMBUSFREQ on vlv/chv
drm/i915: Ignore long hpds on eDP ports
...
Linus Torvalds [Sun, 2 Nov 2014 20:56:20 +0000 (12:56 -0800)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
- add the new bpf syscall to ARM.
- drop a redundant return statement in __iommu_alloc_remap()
- fix a performance issue noticed by Thomas Petazzoni with
kmap_atomic().
- fix an issue with the L2 cache OF parsing code which caused it to
incorrectly print warnings on each boot, and make the warning text
more consistent with the rest of the code
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 8180/1: mm: implement no-highmem fast path in kmap_atomic_pfn()
ARM: 8183/1: l2c: Improve l2c310_of_parse() error message
ARM: 8181/1: Drop extra return statement
ARM: 8182/1: l2c: Make l2x0_cache_size_of_parse() return 'int'
ARM: enable bpf syscall
Linus Torvalds [Sun, 2 Nov 2014 20:31:02 +0000 (12:31 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"A small set of x86 fixes. The most serious is an SRCU lockdep fix.
A bit late - needed some time to test the SRCU fix, which only came in
on Friday"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: vmx: defer load of APIC access page address during reset
KVM: nVMX: Disable preemption while reading from shadow VMCS
KVM: x86: Fix far-jump to non-canonical check
KVM: emulator: fix execution close to the segment limit
KVM: emulator: fix error code for __linearize
Dave Airlie [Sun, 2 Nov 2014 19:23:17 +0000 (05:23 +1000)]
Merge branch 'exynos-drm-fixes' of git://git./linux/kernel/git/daeinki/drm-exynos into drm-fixes
This pull-request includes some bug fixes and code cleanups.
Especially, this fixes the bind failure issue occurred when it tries
to re-bind Exynos drm driver after unbound, and the modetest failure
issue incurred by not having a pair to vblank on and off requests.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: correct connector->dpms field before resuming
drm/exynos: enable vblank after DPMS on
drm/exynos: init kms poll at the end of initialization
drm/exynos: propagate plane initialization errors
drm/exynos: vidi: fix build warning
drm/exynos: remove explicit encoder/connector de-initialization
drm/exynos: init vblank with real number of crtcs
Linus Torvalds [Sun, 2 Nov 2014 18:28:43 +0000 (10:28 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull VFS fixes from Al Viro:
"A bunch of assorted fixes, most of them followups to overlayfs merge"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ovl: initialize ->is_cursor
Return short read or 0 at end of a raw device, not EIO
isofs: don't bother with ->d_op for normal case
isofs_cmp(): we'll never see a dentry for . or ..
overlayfs: fix lockdep misannotation
ovl: fix check for cursor
overlayfs: barriers for opening upper-layer directory
rcu: Provide counterpart to rcu_dereference() for non-RCU situations
staging: android: logger: Fix log corruption regression
Linus Torvalds [Sun, 2 Nov 2014 18:20:26 +0000 (10:20 -0800)]
irda: stop calling sk_prot->disconnect() on connection failure
The sk_prot is irda's own set of protocol handlers, so irda should
statically know what that function is anyway, without using an indirect
pointer. And as it happens, we know *exactly* what that pointer is
statically: it's NULL, because irda doesn't define a disconnect
operation.
So calling that function is doubly wrong, and will just cause an oops.
Reported-by: Martin Lang <mlg.hessigheim@gmail.com>
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrzej Hajda [Fri, 10 Oct 2014 12:31:56 +0000 (14:31 +0200)]
drm/exynos: correct connector->dpms field before resuming
During system suspend after connector switch off its dpms field
is set to connector previous dpms state. To properly resume dpms field
should be set to its actual state (off) before resuming to previous dpms state.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Andrzej Hajda [Fri, 10 Oct 2014 12:31:55 +0000 (14:31 +0200)]
drm/exynos: enable vblank after DPMS on
Before DPMS off driver disables vblank.
It should be balanced by vblank enable after DPMS on.
The patch fixes issue with page_flip ioctl not being able
to acquire vblank counter introduced by patch:
drm: Always reject drm_vblank_get() after drm_vblank_off()
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Andrzej Hajda [Fri, 10 Oct 2014 12:31:54 +0000 (14:31 +0200)]
drm/exynos: init kms poll at the end of initialization
HPD events can be generated by components even if drm_dev is not fully
initialized, to skip such events kms poll initialization should
be performed at the end of load callback followed directly by forced
connection detection.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Andrzej Hajda [Fri, 10 Oct 2014 12:31:53 +0000 (14:31 +0200)]
drm/exynos: propagate plane initialization errors
In case of error during plane initialization load callback
incorrectly return success, this patch fixes it.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Inki Dae [Tue, 7 Oct 2014 15:16:34 +0000 (00:16 +0900)]
drm/exynos: vidi: fix build warning
encoder object isn't used anymore so remove it.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Andrzej Hajda [Mon, 22 Sep 2014 09:30:48 +0000 (11:30 +0200)]
drm/exynos: remove explicit encoder/connector de-initialization
All KMS objects are destroyed by drm_mode_config_cleanup in proper order
so component drivers should not care about it.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Andrzej Hajda [Tue, 7 Oct 2014 13:09:14 +0000 (22:09 +0900)]
drm/exynos: init vblank with real number of crtcs
Initialization of vblank with MAX_CRTC caused attempts
to disabling vblanks for non-existing crtcs in case
drm used fewer crtcs. The patch fixes it.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Paolo Bonzini [Sun, 2 Nov 2014 06:54:30 +0000 (07:54 +0100)]
KVM: vmx: defer load of APIC access page address during reset
Most call paths to vmx_vcpu_reset do not hold the SRCU lock. Defer loading
the APIC access page to the next vmentry.
This avoids the following lockdep splat:
[ INFO: suspicious RCU usage. ]
3.18.0-rc2-test2+ #70 Not tainted
-------------------------------
include/linux/kvm_host.h:474 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
rcu_scheduler_active = 1, debug_locks = 0
1 lock held by qemu-system-x86/2371:
#0: (&vcpu->mutex){+.+...}, at: [<
ffffffffa037d800>] vcpu_load+0x20/0xd0 [kvm]
stack backtrace:
CPU: 4 PID: 2371 Comm: qemu-system-x86 Not tainted 3.18.0-rc2-test2+ #70
Hardware name: Dell Inc. OptiPlex 9010/0M9KCM, BIOS A12 01/10/2013
0000000000000001 ffff880209983ca8 ffffffff816f514f 0000000000000000
ffff8802099b8990 ffff880209983cd8 ffffffff810bd687 00000000000fee00
ffff880208a2c000 ffff880208a10000 ffff88020ef50040 ffff880209983d08
Call Trace:
[<
ffffffff816f514f>] dump_stack+0x4e/0x71
[<
ffffffff810bd687>] lockdep_rcu_suspicious+0xe7/0x120
[<
ffffffffa037d055>] gfn_to_memslot+0xd5/0xe0 [kvm]
[<
ffffffffa03807d3>] __gfn_to_pfn+0x33/0x60 [kvm]
[<
ffffffffa0380885>] gfn_to_page+0x25/0x90 [kvm]
[<
ffffffffa038aeec>] kvm_vcpu_reload_apic_access_page+0x3c/0x80 [kvm]
[<
ffffffffa08f0a9c>] vmx_vcpu_reset+0x20c/0x460 [kvm_intel]
[<
ffffffffa039ab8e>] kvm_vcpu_reset+0x15e/0x1b0 [kvm]
[<
ffffffffa039ac0c>] kvm_arch_vcpu_setup+0x2c/0x50 [kvm]
[<
ffffffffa037f7e0>] kvm_vm_ioctl+0x1d0/0x780 [kvm]
[<
ffffffff810bc664>] ? __lock_is_held+0x54/0x80
[<
ffffffff812231f0>] do_vfs_ioctl+0x300/0x520
[<
ffffffff8122ee45>] ? __fget+0x5/0x250
[<
ffffffff8122f0fa>] ? __fget_light+0x2a/0xe0
[<
ffffffff81223491>] SyS_ioctl+0x81/0xa0
[<
ffffffff816fed6d>] system_call_fastpath+0x16/0x1b
Reported-by: Takashi Iwai <tiwai@suse.de>
Reported-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Reviewed-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Tested-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Fixes: 38b9917350cb2946e368ba684cfc33d1672f104e
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Jan Kiszka [Wed, 8 Oct 2014 16:05:39 +0000 (18:05 +0200)]
KVM: nVMX: Disable preemption while reading from shadow VMCS
In order to access the shadow VMCS, we need to load it. At this point,
vmx->loaded_vmcs->vmcs and the actually loaded one start to differ. If
we now get preempted by Linux, vmx_vcpu_put and, on return, the
vmx_vcpu_load will work against the wrong vmcs. That can cause
copy_shadow_to_vmcs12 to corrupt the vmcs12 state.
Fix the issue by disabling preemption during the copy operation.
copy_vmcs12_to_shadow is safe from this issue as it is executed by
vmx_vcpu_run when preemption is already disabled before vmentry.
This bug is exposed by running Jailhouse within KVM on CPUs with
shadow VMCS support. Jailhouse never expects an interrupt pending
vmexit, but the bug can cause it if, after copy_shadow_to_vmcs12
is preempted, the active VMCS happens to have the virtual interrupt
pending flag set in the CPU-based execution controls.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Nadav Amit [Mon, 27 Oct 2014 22:03:43 +0000 (00:03 +0200)]
KVM: x86: Fix far-jump to non-canonical check
Commit
d1442d85cc30 ("KVM: x86: Handle errors when RIP is set during far
jumps") introduced a bug that caused the fix to be incomplete. Due to
incorrect evaluation, far jump to segment with L bit cleared (i.e., 32-bit
segment) and RIP with any of the high bits set (i.e, RIP[63:32] != 0) set may
not trigger #GP. As we know, this imposes a security problem.
In addition, the condition for two warnings was incorrect.
Fixes: d1442d85cc30ea75f7d399474ca738e0bc96f715
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
[Add #ifdef CONFIG_X86_64 to avoid complaints of undefined behavior. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Dave Airlie [Sat, 1 Nov 2014 23:23:31 +0000 (09:23 +1000)]
Merge branch 'vmwgfx-fixes-3.18' of git://people.freedesktop.org/~thomash/linux
A critical 3.18 regression fix from Rob, (thanks!)
A fix to avoid advertizing modes we can't support from Sinclair
(welcome Sinclair!)
and a fix for an incorrect hash key computation from me that is
completely harmless, but can wait 'til the next merge window if necessary.
(I can't really bother stable with this one).
* 'vmwgfx-fixes-3.18' of git://people.freedesktop.org/~thomash/linux:
drm/vmwgfx: Filter out modes those cannot be supported by the current VRAM size.
drm/vmwgfx: Fix hash key computation
drm/vmwgfx: fix lock breakage
Linus Torvalds [Sat, 1 Nov 2014 22:11:27 +0000 (15:11 -0700)]
Merge tag 'staging-3.18-rc3' of git://git./linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are some staging driver fixes for 3.18-rc3. Mostly iio and
comedi driver fixes for issues reported by people.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: comedi: fix memory leak / bad pointer freeing for chanlist
staging: comedi: Kconfig: fix config COMEDI_ADDI_APCI_3120 dependants
staging: comedi: widen subdevice number argument in ioctl handlers
staging: rtl8723au: Fix alignment of mac_addr for ether_addr_copy() usage
drivers/staging/comedi/Kconfig: Let COMEDI_II_PCI20KC depend on HAS_IOMEM
staging: comedi: (regression) channel list must be set for COMEDI_CMD ioctl
iio: adc: mxs-lradc: Disable the clock on probe failure
iio: st_sensors: Fix buffer copy
staging:iio:ad5933: Drop "raw" from channel names
staging:iio:ad5933: Fix NULL pointer deref when enabling buffer
Linus Torvalds [Sat, 1 Nov 2014 22:08:04 +0000 (15:08 -0700)]
Merge tag 'usb-3.18-rc3' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a bunch of USB fixes for 3.18-rc3.
Mostly usb-serial device ids and gadget fixes for issues that have
been reported. Full details are in the shortlog.
All of these have been in linux-next for a while"
* tag 'usb-3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (42 commits)
usb: chipidea: Fix oops when removing the ci_hdrc module
usb: gadget: function: Fixed the return value on error path
usb: dwc2: gadget: disable phy before turning off power regulators
usb: gadget: function: Remove redundant usb_free_all_descriptors
usb: dwc3: gadget: Properly initialize LINK TRB
usb: dwc2: gadget: fix gadget unregistration in udc_stop() function
usb: dwc2: Bits in bitfield should add up to 32
usb: dwc2: gadget: sparse warning of context imbalance
usb: gadget: udc: core: fix kernel oops with soft-connect
usb: musb: musb_dsps: fix NULL pointer in suspend
usb: musb: dsps: start OTG timer on resume again
usb: gadget: loopback: don't queue requests to bogus endpoints
usb: ffs: fix regression when quirk_ep_out_aligned_size flag is set
usb: gadget: f_fs: remove redundant ffs_data_get()
usb: gadget: udc: USB_GADGET_XILINX should depend on HAS_DMA
Revert "usb: dwc3: dwc3-omap: Disable/Enable only wrapper interrupts in prepare/complete"
usb: gadget: composite: enable BESL support
usb: musb: cppi41: restart hrtimer only if not yet done
usb: dwc3: ep0: fix Data Phase for transfer sizes aligned to wMaxPacketSize
usb: serial: ftdi_sio: add "bricked" FTDI device PID
...
Linus Torvalds [Sat, 1 Nov 2014 17:41:26 +0000 (10:41 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"Filipe is nailing down some problems with our skinny extent variation,
and Dave's patch fixes endian problems in the new super block checks"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix race that makes btrfs_lookup_extent_info miss skinny extent items
Btrfs: properly clean up btrfs_end_io_wq_cache
Btrfs: fix invalid leaf slot access in btrfs_lookup_extent()
btrfs: use macro accessors in superblock validation checks
Linus Torvalds [Sat, 1 Nov 2014 02:51:11 +0000 (19:51 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
"A bunch of fixes for minor defects reported by Coverity, a few driver
fixups and revert of i8042.nomux change so that we are once again
enable active MUX mode if box claims to support it"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Revert "Input: i8042 - disable active multiplexing by default"
Input: altera_ps2 - use correct type for irq return value
Input: altera_ps2 - write to correct register when disabling interrupts
Input: max77693-haptic - fix potential overflow
Input: psmouse - remove unneeded check in psmouse_reconnect()
Input: vsxxxaa - fix code dropping bytes from queue
Input: ims-pcu - fix dead code in ims_pcu_ofn_reg_addr_store()
Input: opencores-kbd - fix error handling
Input: wm97xx - adapt parameters to tosa touchscreen.
Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544
Input: stmpe-keypad - fix valid key line bitmask
Input: soc_button_array - update calls to gpiod_get*()
Linus Torvalds [Sat, 1 Nov 2014 02:08:25 +0000 (19:08 -0700)]
Merge tag 'pm+acpi-3.18-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
"These are fixes received after my previous pull request plus one that
has been in the works for quite a while, but its previous version
caused problems to happen, so it's been deferred till now.
Fixed are two recent regressions (MFD enumeration and cpufreq-dt),
ACPI EC regression introduced in 3.17, system suspend error code path
regression introduced in 3.15, an older bug related to recovery from
failing resume from hibernation and a cpufreq-dt driver issue related
to operation performance points.
Specifics:
- Fix a crash on r8a7791/koelsch during resume from system suspend
caused by a recent cpufreq-dt commit (Geert Uytterhoeven).
- Fix an MFD enumeration problem introduced by a recent commit adding
ACPI support to the MFD subsystem that exposed a weakness in the
ACPI core causing ACPI enumeration to be applied to all devices
associated with one ACPI companion object, although it should be
used for one of them only (Mika Westerberg).
- Fix an ACPI EC regression introduced during the 3.17 cycle causing
some Samsung laptops to misbehave as a result of a workaround
targeted at some Acer machines. That includes a revert of a commit
that went too far and a quirk for the Acer machines in question.
From Lv Zheng.
- Fix a regression in the system suspend error code path introduced
during the 3.15 cycle that causes it to fail to take errors from
asychronous execution of "late" suspend callbacks into account
(Imre Deak).
- Fix a long-standing bug in the hibernation resume error code path
that fails to roll back everything correcty on "freeze" callback
errors and leaves some devices in a "suspended" state causing more
breakage to happen subsequently (Imre Deak).
- Make the cpufreq-dt driver disable operation performance points
that are not supported by the VR connected to the CPU voltage plane
with acceptable tolerance instead of constantly failing voltage
scaling later on (Lucas Stach)"
* tag 'pm+acpi-3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / EC: Fix regression due to conflicting firmware behavior between Samsung and Acer.
Revert "ACPI / EC: Add support to disallow QR_EC to be issued before completing previous QR_EC"
cpufreq: cpufreq-dt: Restore default cpumask_setall(policy->cpus)
PM / Sleep: fix recovery during resuming from hibernation
PM / Sleep: fix async suspend_late/freeze_late error handling
ACPI: Use ACPI companion to match only the first physical device
cpufreq: cpufreq-dt: disable unsupported OPPs
Linus Torvalds [Sat, 1 Nov 2014 01:48:29 +0000 (18:48 -0700)]
Merge tag 'pci-v3.18-fixes-1' of git://git./linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"These changes, intended for v3.18, fix:
Sysfs
- Fix "enable" filename change (Greg Kroah-Hartman)
An unintentional sysfs filename change in commit
5136b2da770d
("PCI: convert bus code to use dev_groups"), which appeared in
v3.13, changed "enable" to "enabled", and this changes it back.
Old users of "enable" are currently broken and will be helped by
this change. Anything that started to use "enabled" after v3.13
will be broken by this change. If necessary, we can add a symlink
to make both work, but this patch doesn't do that.
PCI device hotplug
- Revert duplicate merge (Kamal Mostafa)
A mistaken duplicate merge that added a check twice. Nothing's
broken; this just removes the unnecessary code.
Freescale i.MX6
- Wait for clocks to stabilize after ref_en (Richard Zhu)
An i.MX6 clock problem that prevents mx6 nitrogen boards from booting"
* tag 'pci-v3.18-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Rename sysfs 'enabled' file back to 'enable'
PCI: imx6: Wait for clocks to stabilize after ref_en
Revert duplicate "PCI: pciehp: Prevent NULL dereference during probe"
Andy Lutomirski [Sat, 1 Nov 2014 01:08:45 +0000 (18:08 -0700)]
x86_64, entry: Fix out of bounds read on sysenter
Rusty noticed a Really Bad Bug (tm) in my NT fix. The entry code
reads out of bounds, causing the NT fix to be unreliable. But, and
this is much, much worse, if your stack is somehow just below the
top of the direct map (or a hole), you read out of bounds and crash.
Excerpt from the crash:
[ 1.129513] RSP: 0018:
ffff88001da4bf88 EFLAGS:
00010296
2b:* f7 84 24 90 00 00 00 testl $0x4000,0x90(%rsp)
That read is deterministically above the top of the stack. I
thought I even single-stepped through this code when I wrote it to
check the offset, but I clearly screwed it up.
Fixes: 8c7aa698baca ("x86_64, entry: Filter RFLAGS.NT on entry from userspace")
Reported-by: Rusty Russell <rusty@ozlabs.org>
Cc: stable@vger.kernel.org
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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