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2016-02-24cfg80211: fix faulty variable initialization in ieee80211_amsdu_to_8023sFelix Fietkau
reuse_skb is set to true if the code decides to use the last segment. Fixes a memory leak Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: fix VHT MU-MIMO frame processingSara Sharon
The source and destintation addresses in the memcpy arguments are flipped. Fix that. Fixes: 23a1f8d44c0b("mac80211: process and save VHT MU-MIMO group frame") Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: Unify mesh and mpp path removal functionHenning Rogge
mpp_path_del() and mesh_path_del() are mostly the same function. Move common code into a new static function. Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Henning Rogge <henning.rogge@fkie.fraunhofer.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: let unused MPP table entries timeoutHenning Rogge
Remember the last time when a mpp table entry is used for rx or tx and remove them after MESH_PATH_EXPIRE time. Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Henning Rogge <henning.rogge@fkie.fraunhofer.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: Remove MPP table entries with MPathHenning Rogge
Make the mesh_path_del() function remove all mpp table entries that are proxied by the removed mesh path. Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Henning Rogge <henning.rogge@fkie.fraunhofer.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24cfg80211: basic support for PBSS network typeLior David
PBSS (Personal Basic Service Set) is a new BSS type for DMG networks. It is similar to infrastructure BSS, having an AP-like entity called PCP (PBSS Control Point), but it has few differences. PBSS support is mandatory for 11ad devices. Add support for PBSS by introducing a new PBSS flag attribute. The PBSS flag is used in the START_AP command to request starting a PCP instead of an AP, and in the CONNECT command to request connecting to a PCP instead of an AP. Signed-off-by: Lior David <liord@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24cfg80211: add support for non-linear skbs in ieee80211_amsdu_to_8023sFelix Fietkau
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24cfg80211: add function for 802.3 conversion with separate output bufferFelix Fietkau
Use skb_copy_bits in preparation for allowing fragmented skbs Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: move A-MSDU skb_linearize call to ieee80211_amsdu_to_8023sFelix Fietkau
Prepararation for zero-copy A-MSDU support with page fragment SKBs Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: fix memory leakSudip Mukherjee
On error we jumped to the error label and returned the error code but we missed releasing sinfo. Fixes: 5fe74014172d ("mac80211: avoid excessive stack usage in sta_info") Reviewed-by: Julian Calaby <julian.calaby@gmail.com> Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: Interoperability workaround for 80+80 and 160 MHz channelsJouni Malinen
Number of deployed 80 MHz capable VHT stations that do not support 80+80 and 160 MHz bandwidths seem to misbehave when trying to connect to an AP that advertises 80+80 or 160 MHz channel bandwidth in the VHT Operation element. To avoid such issues with deployed devices, modify the design based on recently accepted IEEE 802.11 standard changes (*). This allows poorly implemented VHT 80 MHz stations to connect with the AP in 80 MHz mode. 80+80 and 160 MHz capable stations need to support the new workaround mechanism to allow full bandwidth to be used. However, there are more or less no impacted station with 80+80/160 capability deployed. The rebased version of this patch is based on the updated version from Johannes Berg to take the HT/VHT chandef refactoring into account. (*) Changes in https://mentor.ieee.org/802.11/dcn/15/11-15-1530-04-000m-vht160-operation-signaling-through-non-zero-ccfs1.docx were accepted during the IEEE 802.11 January 2016 meeting. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: add API to allow filtering frames in BA sessionsSara Sharon
If any frames are dropped that are part of a BA session, the reorder buffer will "indefinitely" (until the timeout) wait for them to come in (or a BAR moving the window) and won't release frames after them. This means it isn't possible to filter frames within a BA session in firmware. Introduce an API function that allows such filtering. Calling this function will move the BA window forward to the new SSN, and allows marking frames after the SSN as having been filtered, so any future reordering activity will release frames while skipping the holes. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: change ieee80211_rx_reorder_ready() argumentsJohannes Berg
Clean up ieee80211_rx_reorder_ready() callers by passing the RX TID struct and the index, instead of the frames list. This will make it more extensible as well. While at it, move the inline to rx.c as it's only used there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: expose txq queue depth and size to driversMichal Kazior
This will allow drivers to make more educated decisions whether to defer transmission or not. Relying on wake_tx_queue() call count implicitly was not possible because it could be called without queued frame count actually changing on software tx aggregation start/stop code paths. It was also not possible to know how long byte-wise queue was without dequeueing. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: Parse legacy and HT rate in injected framesSven Eckelmann
Drivers/devices without their own rate control algorithm can get the information what rates they should use from either the radiotap header of injected frames or from the rate control algorithm. But the parsing of the legacy rate information from the radiotap header was removed in commit e6a9854b05c1 ("mac80211/drivers: rewrite the rate control API"). The removal of this feature heavily reduced the usefulness of frame injection when wanting to simulate specific transmission behavior. Having rate parsing together with MCS rates and retry support allows a fine grained selection of the tx behavior of injected frames for these kind of tests. Signed-off-by: Sven Eckelmann <sven@narfation.org> Cc: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: mesh: drop constant field mean_chain_lenBob Copeland
The mean_chain_len field in struct mesh_table is copied whenever a new mesh table is allocated, but only ever has the value 2 and is never otherwise updated, so just remove it and use the related define instead. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: avoid excessive stack usage in sta_infoArnd Bergmann
When CONFIG_OPTIMIZE_INLINING is set, the sta_info_insert_finish function consumes more stack than normally, exceeding the 1024 byte limit on ARM: net/mac80211/sta_info.c: In function 'sta_info_insert_finish': net/mac80211/sta_info.c:561:1: error: the frame size of 1080 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] It turns out that there are two functions that put a 'struct station_info' on the stack: __sta_info_destroy_part2 and sta_info_insert_finish, and this structure alone requires up to 792 bytes. Hoping that both are called rarely enough, this replaces the on-stack structure with a dynamic allocation, which unfortunately requires some suboptimal error handling for out-of-memory. The __sta_info_destroy_part2 function is actually affected by the stack usage twice because it calls cfg80211_del_sta_sinfo(), which has another instance of struct station_info on its stack. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 98b6218388e3 ("mac80211/cfg80211: add station events") Fixes: 6f7a8d26e266 ("mac80211: send statistics with delete station event") Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: always print a message when disconnectingJohannes Berg
Make sure there's at least a debug message whenever the connection to the AP is terminated. Also change one message from wiphy_debug() to the common mlme_dbg(). Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: fix ibss scan parametersSara Sharon
When joining IBSS a full scan should be initiated in order to search for existing cell, unless the fixed_channel parameter was set. A default channel to create the IBSS on if no cell was found is provided as well. However - a scan is initiated only on the default channel provided regardless of whether ifibss->fixed_channel is set or not, with the obvious result of the cell not joining existing IBSS cell that is on another channel. Fixes: 76bed0f43b27 ("mac80211: IBSS fix scan request") Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: add RX_FLAG_MACTIME_PLCP_STARTJohannes Berg
The timestamp given by iwlwifi is at the beginning of the frame over the air, at (or during) the SYNC field. Allow such timestamps to be given to mac80211, at least (for now) for frames with non-HT/VHT preambles. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: fix unnecessary frame drops in mesh fwdingMichal Kazior
The ieee80211_queue_stopped() expects hw queue number but it was given raw WMM AC number instead. This could cause frame drops and problems with traffic in some cases - most notably if driver doesn't map AC numbers to queue numbers 1:1 and uses ieee80211_stop_queues() and ieee80211_wake_queue() only without ever calling ieee80211_wake_queues(). On ath10k it was possible to hit this problem in the following case: 1. wlan0 uses queue 0 (ath10k maps queues per vif) 2. offchannel uses queue 15 3. queues 1-14 are unused 4. ieee80211_stop_queues() 5. ieee80211_wake_queue(q=0) 6. ieee80211_wake_queue(q=15) (other queues are not woken up because both driver and mac80211 know other queues are unused) 7. ieee80211_rx_h_mesh_fwding() 8. ieee80211_select_queue_80211() returns 2 9. ieee80211_queue_stopped(q=2) returns true 10. frame is dropped (oops!) Fixes: d3c1597b8d1b ("mac80211: fix forwarded mesh frame queue mapping") Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: fix txq queue related crashesMichal Kazior
The driver can access the queue simultanously while mac80211 tears down the interface. Without spinlock protection this could lead to corrupting sk_buff_head and subsequently to an invalid pointer dereference. Fixes: ba8c3d6f16a1 ("mac80211: add an intermediate software queue implementation") Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: mesh_plink: remove redundant sta_info checkSunil Shahu
Remove unnecessory "if" statement and club it with previos "if" block. Signed-off-by: Sunil Shahu <shshahu@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24rfkill: Update userspace API documentationJoão Paulo Rechi Vita
Add a note to userspace on the effect of RFKILL_OP_CHANGE_ALL also updating the default state for hotplugged devices. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> [reword a bit] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24rfkill: Remove obsolete "claim" sysfs interfaceJoão Paulo Rechi Vita
This was scheduled to be removed in 2012 by: commit 69c86373c6ea1149aa559e6088362d58d8ec8835 Author: florian@mickler.org <florian@mickler.org> Date: Wed Feb 24 12:05:16 2010 +0100 Document the rfkill sysfs ABI This moves sysfs ABI info from Documentation/rfkill.txt to the ABI subfolder and reformats it. This also schedules the deprecated sysfs parts to be removed in 2012 (claim file) and 2014 (state file). Signed-off-by: Florian Mickler <florian@mickler.org> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24rfkill: remove/inline __rfkill_set_hw_stateJoão Paulo Rechi Vita
__rfkill_set_hw_state() is only one used in rfkill_set_hw_state(), and none of them are long or complicated, so merging the two makes the code easier to read. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24rfkill: use variable instead of duplicating the expressionJoão Paulo Rechi Vita
RFKILL_BLOCK_SW value have just been saved to prev, no need to check it again in the if expression. This makes code a little bit easier to read. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24cfg80211: Fix some linguistics in KconfigOla Olsson
Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24rfkill: disentangle polling pause and suspendJohannes Berg
When suspended while polling is paused, polling will erroneously resume at resume time. Fix this by tracking pause and suspend in separate state variable and adding the necessary checks. Clarify the documentation on this as well. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211_hwsim: remove shadowing variableJohannes Berg
The function here already has a variable hdr that even contains the right thing, so the inner scope's hdr variable that's shadowing the outer one can just be removed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: Make addr const in SET_IEEE80211_PERM_ADDR()Bjorn Andersson
Make the addr parameter const in SET_IEEE80211_PERM_ADDR() to save clients from having to cast away a const qualifier. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: refactor HT/VHT to chandef codeJohannes Berg
The station MLME and IBSS/mesh ones use entirely different code for interpreting HT and VHT operation elements. Change the code that interprets them a bit - it now modifies an existing chandef - and use it also in the MLME code. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24cfg80211: add more warnings for inconsistent opsOla Olsson
Print a warning whenever an expected callback function lacks implementation. Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: limit the A-MSDU Tx based on peer's capabilitiesEmmanuel Grumbach
In VHT, the specification allows to limit the number of MSDUs in an A-MSDU in the Extended Capabilities IE. There is also a limitation on the byte size in the VHT IE. In HT, the only limitation is on the byte size. Parse the capabilities from the peer and make them available to the driver. In HT, there is another limitation when a BA agreement is active: the byte size can't be greater than 4095. This is not enforced here. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: Recalc min chandef when station is associatedIlan Peer
The minimum chandef bandwidth calculation was done only in case a new station was inserted (or when an existing station was removed). However, it is possible that stations are inserted before they are associated, e.g., when FULL_AP_CLIENT_STATE is supported and user space adds stations unassociated. Fix this by calling ieee80211_recalc_min_chandef() whenever a station transitions in/out the associated state, and only consider station marked as associated. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: allow drivers to report (non-)monitor framesGrzegorz Bajorski
Some drivers offload some frames internally (e.g. AddBa). Reporting such frames to mac80211 would only confuse MLME. However it would be useful to be able to pass such frames to monitor interfaces for sniffing purposes, e.g. when running AP + monitor. To do that allow drivers to tell mac80211 whether a given frame should be: - processed but not delivered to any monitor vif - not processed but delievered to monitor vifs only Signed-off-by: Grzegorz Bajorski <grzegorz.bajorski@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-02-24mac80211: support hw managing reorder logicSara Sharon
Enable driver to manage the reordering logic itself. This is needed for example for the iwlwifi driver that will support hardware assisted reordering. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14mac80211: pass block ack session timeout to to driverSara Sharon
Currently mac80211 does not inform the driver of the session block ack timeout when starting a rx aggregation session. Drivers that manage the reorder buffer need to know this parameter. Seeing that there are now too many arguments for the drv_ampdu_action() function, wrap them inside a structure. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14cfg80211/mac80211: use to_delayed_workGeliang Tang
Use to_delayed_work() instead of open-coding it. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14mac80211: document status.freq restrictionsJohannes Berg
It's not always necessary to set the status.freq field, for example when this would be an expensive calculation. It must be set for all management frames (as they might be reported to userspace), but for data frames it's not really required. Document this. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14mac80211: pass RX aggregation window size to driverSara Sharon
Currently mac80211 does not inform the driver of the window size when starting an RX aggregation session. To enable managing the reorder buffer in the driver or hardware the window size is needed. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14mac80211: add flag for duplication checkSara Sharon
Add an option for driver to check for packet duplication by itself. This is needed for example by the iwlwifi driver which parallelizes the RX path and does the duplication check per queue. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14mac80211: process and save VHT MU-MIMO group frameSara Sharon
The Group ID Management frame is an Action frame of category VHT. It is transmitted by the AP to assign or change the user position of a STA for one or more group IDs. Process and save the group membership data. Notify underlying driver of changes. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-14cfg80211: remove CFG80211_REG_DEBUGJohannes Berg
Instead of having this Kconfig option, which just *floods* the kernel log, * remove the per-channel prints that are fairly useless anyway * convert the conditional printing to pr_debug() Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2016-01-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2016-01-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linuxDavid S. Miller
2016-01-12Merge tag 'pm+acpi-4.5-rc1-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull oower management and ACPI updates from Rafael Wysocki: "As far as the number of commits goes, ACPICA takes the lead this time, followed by cpufreq and the device properties framework changes. The most significant new feature is the debugfs-based interface to the ACPICA's AML debugger added in the previous cycle and a new user space tool for accessing it. On the cpufreq front, the core is updated to handle governors more efficiently, particularly on systems where a single cpufreq policy object is shared between multiple CPUs, and there are quite a few changes in drivers (intel_pstate, cpufreq-dt etc). The device properties framework is updated to handle built-in (ie included in the kernel itself) device properties better, among other things by adding a fallback mechanism that will allow drivers to provide default properties to be used in case the plaform firmware doesn't provide the properties expected by them. The Operating Performance Points (OPP) framework gets new DT bindings and debugfs support. A new cpufreq driver for ST platforms is added and the ACPI driver for AMD SoCs will now support the APM X-Gene ACPI I2C device. The rest is mostly fixes and cleanups all over. Specifics: - Add a debugfs-based interface for interacting with the ACPICA's AML debugger introduced in the previous cycle and a new user space tool for that, fix some bugs related to the AML debugger and clean up the code in question (Lv Zheng, Dan Carpenter, Colin Ian King, Markus Elfring). - Update ACPICA to upstream revision 20151218 including a number of fixes and cleanups in the ACPICA core (Bob Moore, Lv Zheng, Labbe Corentin, Prarit Bhargava, Colin Ian King, David E Box, Rafael Wysocki). In particular, the previously added erroneous support for the _SUB object is dropped, the concatenate operator will support all ACPI objects now, the Debug Object handling is improved, the SuperName handling of parameters being control methods is fixed, the ObjectType operator handling is updated to follow ACPI 5.0A and the handling of CondRefOf and RefOf is updated accordingly, module- level code will be executed after loading each ACPI table now (instead of being run once after all tables containing AML have been loaded), the Operation Region handlers management is updated to fix some reported problems and a the ACPICA code in the kernel is more in line with the upstream now. - Update the ACPI backlight driver to provide information on whether or not it will generate key-presses for brightness change hotkeys and update some platform drivers (dell-wmi, thinkpad_acpi) to use that information to avoid sending double key-events to users pace for these, add new ACPI backlight quirks (Hans de Goede, Aaron Lu, Adrien Schildknecht). - Improve the ACPI handling of interrupt GPIOs (Christophe Ricard). - Fix the handling of the list of device IDs of device objects found in the ACPI namespace and add a helper for checking if there is a device object for a given device ID (Lukas Wunner). - Change the logic in the ACPI namespace scanning code to create struct acpi_device objects for all ACPI device objects found in the namespace even if _STA fails for them which helps to avoid device enumeration problems on Microsoft Surface 3 (Aaron Lu). - Add support for the APM X-Gene ACPI I2C device to the ACPI driver for AMD SoCs (Loc Ho). - Fix the long-standing issue with the DMA controller on Intel SoCs where ACPI tables have no power management support for the DMA controller itself, but it can be powered off automatically when the last (other) device on the SoC is powered off via ACPI and clean up the ACPI driver for Intel SoCs (acpi-lpss) after previous attempts to fix that problem (Andy Shevchenko). - Assorted ACPI fixes and cleanups (Andy Lutomirski, Colin Ian King, Javier Martinez Canillas, Ken Xue, Mathias Krause, Rafael Wysocki, Sinan Kaya). - Update the device properties framework for better handling of built-in properties, add support for built-in properties to the platform bus type, update the MFD subsystem's handling of device properties and add support for passing default configuration data as device properties to the intel-lpss MFD drivers, convert the designware I2C driver to use the unified device properties API and add a fallback mechanism for using default built-in properties if the platform firmware fails to provide the properties as expected by drivers (Andy Shevchenko, Mika Westerberg, Heikki Krogerus, Andrew Morton). - Add new Device Tree bindings to the Operating Performance Points (OPP) framework and update the exynos4412 DT binding accordingly, introduce debugfs support for the OPP framework (Viresh Kumar, Bartlomiej Zolnierkiewicz). - Migrate the mt8173 cpufreq driver to the new OPP bindings (Pi-Cheng Chen). - Update the cpufreq core to make the handling of governors more efficient, especially on systems where policy objects are shared between multiple CPUs (Viresh Kumar, Rafael Wysocki). - Fix cpufreq governor handling on configurations with CONFIG_HZ_PERIODIC set (Chen Yu). - Clean up the cpufreq core code related to the boost sysfs knob support and update the ACPI cpufreq driver accordingly (Rafael Wysocki). - Add a new cpufreq driver for ST platforms and corresponding Device Tree bindings (Lee Jones). - Update the intel_pstate driver to allow the P-state selection algorithm used by it to depend on the CPU ID of the processor it is running on, make it use a special P-state selection algorithm (with an IO wait time compensation tweak) on Atom CPUs based on the Airmont and Silvermont cores so as to reduce their energy consumption and improve intel_pstate documentation (Philippe Longepe, Srinivas Pandruvada). - Update the cpufreq-dt driver to support registering cooling devices that use the (P * V^2 * f) dynamic power draw formula where V is the voltage, f is the frequency and P is a constant coefficient provided by Device Tree and update the arm_big_little cpufreq driver to use that support (Punit Agrawal). - Assorted cpufreq driver (cpufreq-dt, qoriq, pcc-cpufreq, blackfin-cpufreq) updates (Andrzej Hajda, Hongtao Jia, Jacob Tanenbaum, Markus Elfring). - cpuidle core tweaks related to polling and measured_us calculation (Rik van Riel). - Removal of modularity from a few cpuidle drivers (clps711x, ux500, exynos) that cannot be built as modules in practice (Paul Gortmaker). - PM core update to prevent devices from being probed during system suspend/resume which is generally problematic and may lead to inconsistent behavior (Grygorii Strashko). - Assorted updates of the PM core and related code (Julia Lawall, Manuel Pégourié-Gonnard, Maruthi Bayyavarapu, Rafael Wysocki, Ulf Hansson). - PNP bus type updates (Christophe Le Roy, Heiner Kallweit). - PCI PM code cleanups (Jarkko Nikula, Julia Lawall). - cpupower tool updates (Jacob Tanenbaum, Thomas Renninger)" * tag 'pm+acpi-4.5-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (177 commits) PM / clk: don't leave clocks enabled when driver not bound i2c: dw: Add APM X-Gene ACPI I2C device support ACPI / APD: Add APM X-Gene ACPI I2C device support ACPI / LPSS: change 'does not have' to 'has' in comment Revert "dmaengine: dw: platform: provide platform data for Intel" dmaengine: dw: return immediately from IRQ when DMA isn't in use dmaengine: dw: platform: power on device on shutdown ACPI / LPSS: override power state for LPSS DMA device PM / OPP: Use snprintf() instead of sprintf() Documentation: cpufreq: intel_pstate: enhance documentation ACPI, PCI, irq: remove redundant check for null string pointer ACPI / video: driver must be registered before checking for keypresses cpufreq-dt: fix handling regulator_get_voltage() result cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC PM / sleep: Add support for read-only sysfs attributes ACPI: Fix white space in a structure definition ACPI / SBS: fix inconsistent indenting inside if statement PNP: respect PNP_DRIVER_RES_DO_NOT_CHANGE when detaching ACPI / PNP: constify device IDs ACPI / PCI: Simplify acpi_penalize_isa_irq() ...
2016-01-12Merge tag 'trace-v4.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "Not much new with tracing for this release. Mostly just clean ups and minor fixes. Here's what else is new: - A new TRACE_EVENT_FN_COND macro, combining both _FN and _COND for those that want both. - New selftest to test the instance create and delete - Better debug output when ftrace fails" * tag 'trace-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (24 commits) ftrace: Fix the race between ftrace and insmod ftrace: Add infrastructure for delayed enabling of module functions x86: ftrace: Fix the comments for ftrace_modify_code_direct() tracing: Fix comment to use tracing_on over tracing_enable metag: ftrace: Fix the comments for ftrace_modify_code sh: ftrace: Fix the comments for ftrace_modify_code() ia64: ftrace: Fix the comments for ftrace_modify_code() ftrace: Clean up ftrace_module_init() code ftrace: Join functions ftrace_module_init() and ftrace_init_module() tracing: Introduce TRACE_EVENT_FN_COND macro tracing: Use seq_buf_used() in seq_buf_to_user() instead of len bpf: Constify bpf_verifier_ops structure ftrace: Have ftrace_ops_get_func() handle RCU and PER_CPU flags too ftrace: Remove use of control list and ops ftrace: Fix output of enabled_functions for showing tramp ftrace: Fix a typo in comment ftrace: Show all tramps registered to a record on ftrace_bug() ftrace: Add variable ftrace_expected for archs to show expected code ftrace: Add new type to distinguish what kind of ftrace_bug() tracing: Update cond flag when enabling or disabling a trigger ...
2016-01-12Merge branch 'for-4.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - cgroup v2 interface is now official. It's no longer hidden behind a devel flag and can be mounted using the new cgroup2 fs type. Unfortunately, cpu v2 interface hasn't made it yet due to the discussion around in-process hierarchical resource distribution and only memory and io controllers can be used on the v2 interface at the moment. - The existing documentation which has always been a bit of mess is relocated under Documentation/cgroup-v1/. Documentation/cgroup-v2.txt is added as the authoritative documentation for the v2 interface. - Some features are added through for-4.5-ancestor-test branch to enable netfilter xt_cgroup match to use cgroup v2 paths. The actual netfilter changes will be merged through the net tree which pulled in the said branch. - Various cleanups * 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: rename cgroup documentations cgroup: fix a typo. cgroup: Remove resource_counter.txt in Documentation/cgroup-legacy/00-INDEX. cgroup: demote subsystem init messages to KERN_DEBUG cgroup: Fix uninitialized variable warning cgroup: put controller Kconfig options in meaningful order cgroup: clean up the kernel configuration menu nomenclature cgroup_pids: fix a typo. Subject: cgroup: Fix incomplete dd command in blkio documentation cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends cpuset: Replace all instances of time_t with time64_t cgroup: replace unified-hierarchy.txt with a proper cgroup v2 documentation cgroup: rename Documentation/cgroups/ to Documentation/cgroup-legacy/ cgroup: replace __DEVEL__sane_behavior with cgroup2 fs type
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