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2014-11-26carma-fpga: drop videobuf dependencyHans Verkuil
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>
2014-11-26carma-fpga-program.c: fix compile errorsHans Verkuil
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>
2014-11-26i8k: Fix temperature bug handling in i8k_get_temp()Pali Rohár
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>
2014-11-26cxl: Name interrupts in /proc/interruptMichael Neuling
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>
2014-11-26CXL: Return error to PSL if IRQ demultiplexing fails & print clearer warningIan Munsie
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>
2014-11-26coresight-replicator: remove .owner field for driverPankaj Dubey
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>
2014-11-26coresight: fixed comments in coresight.hPankaj Dubey
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>
2014-11-26coresight: fix typo in comment in coresight-priv.hPankaj Dubey
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>
2014-11-26coresight: bindings for coresight driversMathieu Poirier
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>
2014-11-26coresight: Adding ABI documentationMathieu Poirier
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26w1: support auto-load of w1_bq27000 module.NeilBrown
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>
2014-11-26w1: avoid potential u16 overflowDavid Fries
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>
2014-11-26cn: verify msg->len before making callbackDavid Fries
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>
2014-11-26mei: export fw status registers through sysfsTomas Winkler
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>
2014-11-26mei: read and print all six FW status registersAlexander Usyskin
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>
2014-11-26mei: txe: add cherrytrail device idTomas Winkler
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-26mei: kill cached host and me csr valuesTomas Winkler
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>
2014-11-26misc: Remove unused subdirectoryThierry Reding
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>
2014-11-26hv: hv_balloon: avoid memory leak on alloc_error of 2MB memory blockDexuan Cui
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>
2014-11-26tools: hv: ignore ENOBUFS and ENOMEM in the KVP daemonDexuan Cui
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>
2014-11-26Tools: hv: vssdaemon: skip all filesystems mounted readonlyVitaly Kuznetsov
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>
2014-11-26Tools: hv: vssdaemon: report freeze errorsVitaly Kuznetsov
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>
2014-11-26Drivers: hv: kvp,vss: Fast propagation of userspace communication failureVitaly Kuznetsov
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>
2014-11-26Drivers: hv: vss: Introduce timeout for communication with userspaceVitaly Kuznetsov
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>
2014-11-24Merge tag 'extcon-next-for-3.19' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/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.
2014-11-24extcon: max14577: Fix obvious typo in company name in copyrightKrzysztof Kozlowski
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>
2014-11-24extcon: max77693: Fix cable name of JIG_UART_ONKrzysztof Kozlowski
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>
2014-11-24extcon: Implement OF-based extcon lookup properlyTomasz Figa
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>
2014-11-14Revert "misc: always assign miscdevice to file->private_data in open()"Greg Kroah-Hartman
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>
2014-11-14Revert "fbdev: pxa3xx-gcu: remove redundant implementation of open()"Greg Kroah-Hartman
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>
2014-11-14Revert "char: misc: document behaviour of open()"Greg Kroah-Hartman
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>
2014-11-08checkkconfigsymbols.py: improve detection of defectsValentin Rothberg
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>
2014-11-07ARM: removing support for etb/etm in "arch/arm/kernel/"Mathieu Poirier
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>
2014-11-07coresight: adding basic support for D01 boardXia Kaixu
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>
2014-11-07coresight: adding basic support for Vexpress TC2Mathieu Poirier
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>
2014-11-07coresight: adding support for beagle and beagleXMMathieu Poirier
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>
2014-11-07coresight: documentation for coresight framework and driversMathieu Poirier
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>
2014-11-07coresight-etm: add CoreSight ETM/PTM driverPratik Patel
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>
2014-11-07coresight-replicator: add CoreSight Replicator driverPratik Patel
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>
2014-11-07coresight-funnel: add CoreSight Funnel driverPratik Patel
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>
2014-11-07coresight-etb: add CoreSight ETB driverPratik Patel
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>
2014-11-07coresight-tpiu: add CoreSight TPIU driverPratik Patel
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>
2014-11-07coresight-tmc: add CoreSight TMC driverPratik Patel
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>
2014-11-07coresight: add CoreSight core layer frameworkPratik Patel
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>
2014-11-07Revert "driver core: Fix unbalanced device reference in drivers_probe"Greg Kroah-Hartman
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>
2014-11-07pcmcia: sa1111: pass sa1111_dev to jornada720 codeDmitry Eremin-Solenikov
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>
2014-11-07pcmcia: sa1111: pass sa1111_dev to badge4-specific codeDmitry Eremin-Solenikov
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>
2014-11-07hangcheck-timer: cleanup casting in hangcheck_init()Dan Carpenter
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>
2014-11-07W1: ds2490: Increase timeout when waiting for statusAlexander Stein
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>
2014-11-07driver core: Fix unbalanced device reference in drivers_probeAlex Williamson
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>
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-24 09:44:41 +0000