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2013-02-15mac80211: add ieee80211_vif_change_bandwidthJohannes Berg
For HT and VHT the current bandwidth can change, add the function ieee80211_vif_change_bandwidth() to take care of this. It returns a failure if the new bandwidth isn't compatible with the existing channel context, the caller has to handle that. When it happens, also inform the driver that the bandwidth changed for this virtual interface (no drivers would actually care today though.) Changing to/from HT/VHT isn't allowed though. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15mac80211: handle VHT operating mode notificationJohannes Berg
Handle the operating mode notification action frame. When the supported streams or the bandwidth change let the driver and rate control algorithm know. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15mac80211: track number of spatial streamsJohannes Berg
With VHT, a station can change the number of spatial streams it can receive on the fly, not unlike spatial multiplexing in HT. Prepare for that by tracking the maximum number of spatial streams it can receive when the connection is established. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15wireless: define operating mode action frameJohannes Berg
Define the action frame format, the VHT category and its action types and the field format and EID for operating mode notifications. The frame may be used outside of VHT context as well, so don't include "VHT" in the names. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15mac80211: stop toggling IEEE80211_HT_CAP_SUP_WIDTH_20_40Johannes Berg
For VHT, many more bandwidth changes are possible. As a first step, stop toggling the IEEE80211_HT_CAP_SUP_WIDTH_20_40 flag in the HT capabilities and instead introduce a bandwidth field indicating the currently usable bandwidth to transmit to the station. Of course, make all drivers use it. To achieve this, make ieee80211_ht_cap_ie_to_sta_ht_cap() get the station as an argument, rather than the new capabilities, so it can set up the new bandwidth field. If the station is a VHT station and VHT bandwidth is in use, also set the bandwidth accordingly. Doing this allows us to get rid of the supports_40mhz flag as the HT capabilities now reflect the true capability instead of the current setting. While at it, also fix ieee80211_ht_cap_ie_to_sta_ht_cap() to not ignore HT cap overrides when MCS TX isn't supported (not that it really happens...) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15mac80211: add radar detection command/eventSimon Wunderlich
Add command to trigger radar detection in the driver/FW. Once radar detection is started it should continuously monitor for radars as long as the channel active. If radar is detected usermode notified with 'radar detected' event. Scanning and remain on channel functionality must be disabled while doing radar detection/scanning, and vice versa. Based on original patch by Victor Goldenshtein <victorg@ti.com> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15nl80211/cfg80211: add radar detection command/eventSimon Wunderlich
Add new NL80211_CMD_RADAR_DETECT, which starts the Channel Availability Check (CAC). This command will also notify the usermode about events (CAC finished, CAC aborted, radar detected, NOP finished). Once radar detection has started it should continuously monitor for radars as long as the channel is active. This patch enables DFS for AP mode in nl80211/cfg80211. Based on original patch by Victor Goldenshtein <victorg@ti.com> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> [remove WIPHY_FLAG_HAS_RADAR_DETECT again -- my mistake] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-14ARM defconfigs: add missing inclusions of linux/platform_device.hArnd Bergmann
Patch 16559ae "kgdb: remove #include <linux/serial_8250.h> from kgdb.h" removed an implicit inclusion of linux/platform_device.h In a number of places. This adds back explicit inclusions in a few more places I found. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-14Merge branch 'fortglx/3.9/time' of git://git.linaro.org/people/jstultz/linux ↵Thomas Gleixner
into timers/core
2013-02-14Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== 1) Remove a duplicated call to skb_orphan() in pf_key, from Cong Wang. 2) Prepare xfrm and pf_key for algorithms without pf_key support, from Jussi Kivilinna. 3) Fix an unbalanced lock in xfrm_output_one(), from Li RongQing. 4) Add an IPsec state resolution packet queue to handle packets that are send before the states are resolved. 5) xfrm4_policy_fini() is unused since 2.6.11, time to remove it. From Michal Kubecek. 6) The xfrm gc threshold was configurable just in the initial namespace, make it configurable in all namespaces. From Michal Kubecek. 7) We currently can not insert policies with mark and mask such that some flows would be matched from both policies. Allow this if the priorities of these policies are different, the one with the higher priority is used in this case. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-14Merge remote-tracking branch 'asoc/topic/da7213' into asoc-nextMark Brown
2013-02-14ASoC: codecs: Add da7213 codecAdam Thomson
This patch adds support for the Dialog DA7213 audio codec. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-14Merge remote-tracking branch 'regmap/topic/no-bus' into regmap-nextMark Brown
2013-02-14Merge remote-tracking branch 'regmap/topic/mmio' into regmap-nextMark Brown
2013-02-14Merge remote-tracking branch 'regmap/topic/irq' into regmap-nextMark Brown
2013-02-14Merge remote-tracking branch 'regmap/topic/flat' into regmap-nextMark Brown
2013-02-14Merge remote-tracking branch 'regmap/topic/async' into regmap-nextMark Brown
2013-02-14regmap: mmio: add register clock supportPhilipp Zabel
Some mmio devices have a dedicated interface clock that needs to be enabled to access their registers. This patch optionally enables a clock before accessing registers in the regmap_bus callbacks. I added (devm_)regmap_init_mmio_clk variants of the init functions that have an added clk_id string parameter. This is passed to clk_get to request the clock from the clk framework. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-02-14Merge branch 'usbhost17-for-arm-soc' of git://github.com/rogerq/linux into ↵Tony Lindgren
omap-for-v3.9/usb
2013-02-14s390/mm: implement software dirty bitsMartin Schwidefsky
The s390 architecture is unique in respect to dirty page detection, it uses the change bit in the per-page storage key to track page modifications. All other architectures track dirty bits by means of page table entries. This property of s390 has caused numerous problems in the past, e.g. see git commit ef5d437f71afdf4a "mm: fix XFS oops due to dirty pages without buffers on s390". To avoid future issues in regard to per-page dirty bits convert s390 to a fault based software dirty bit detection mechanism. All user page table entries which are marked as clean will be hardware read-only, even if the pte is supposed to be writable. A write by the user process will trigger a protection fault which will cause the user pte to be marked as dirty and the hardware read-only bit is removed. With this change the dirty bit in the storage key is irrelevant for Linux as a host, but the storage key is still required for KVM guests. The effect is that page_test_and_clear_dirty and the related code can be removed. The referenced bit in the storage key is still used by the page_test_and_clear_young primitive to provide page age information. For page cache pages of mappings with mapping_cap_account_dirty there will not be any change in behavior as the dirty bit tracking already uses read-only ptes to control the amount of dirty pages. Only for swap cache pages and pages of mappings without mapping_cap_account_dirty there can be additional protection faults. To avoid an excessive number of additional faults the mk_pte primitive checks for PageDirty if the pgprot value allows for writes and pre-dirties the pte. That avoids all additional faults for tmpfs and shmem pages until these pages are added to the swap cache. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-14asm-generic/io.h: convert readX defines to functionsHeiko Carstens
E.g. readl is defined like this #define readl(addr) __le32_to_cpu(__raw_readl(addr)) If a there is a readl() call that doesn't check the return value this will cause a compile warning on big endian machines due to the __le32_to_cpu macro magic. E.g. code like this: readl(addr); will generate the following compile warning: warning: value computed is not used [-Wunused-value] With this patch we get rid of dozens of compile warnings on s390. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-02-14dmaengine.h: remove redundant else keywordAndy Shevchenko
dmaengine_device_control returns -ENOSYS in case the dma driver doesn't have such functionality. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-02-14smpboot: Allow selfparking per cpu threadsThomas Gleixner
The stop machine threads are still killed when a cpu goes offline. The reason is that the thread is used to bring the cpu down, so it can't be parked along with the other per cpu threads. Allow a per cpu thread to be excluded from automatic parking, so it can park itself once it's done Add a create callback function as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Arjan van de Veen <arjan@infradead.org> Cc: Paul Turner <pjt@google.com> Cc: Richard Weinberger <rw@linutronix.de> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/20130131120741.553993267@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-02-14burying unused conditionalsAl Viro
__ARCH_WANT_SYS_RT_SIGACTION, __ARCH_WANT_SYS_RT_SIGSUSPEND, __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND, __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL - not used anymore CONFIG_GENERIC_{SIGALTSTACK,COMPAT_RT_SIG{ACTION,QUEUEINFO,PENDING,PROCMASK}} - can be assumed always set.
2013-02-14make do_sigaltstack() staticAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-14ARM: s3c: i2c: add platform_device forward declarationArnd Bergmann
A recent cleanup to the mach-osiris.c file is causing build errors because the i2c-s3c2410.h header file is included before we see the definition for platform_device. The fix is to make the header file more robust against inclusion from other places. While this should normally go through the i2c tree, the bug only exists in arm-soc at the moment, so it's easier to fix it there before it goes upstream. Without this patch, building s3c2410_defconfig results in: arch/arm/mach-s3c24xx/mach-osiris.c:34:0: include/linux/platform_data/i2c-s3c2410.h:37:26: warning: 'struct platform_device' declared inside parameter list [enabled by default] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-i2c@vger.kernel.org Cc: Wolfram Sang <w.sang@pengutronix.de> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com>
2013-02-14ALSA: compress: add support for gapless playbackJeeja KP
this add new API for sound compress to support gapless playback. As noted in Documentation change, we add API to send metadata of encoder and padding delay to DSP. Also add API for indicating EOF and switching to subsequent track Also bump the compress API version Signed-off-by: Jeeja KP <jeeja.kp@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-02-14bridge: use __u16 in if_bridge.hCong Wang
We should use "__u16" instead of "u16" in the user-space visable header. Cc: Vlad Yasevich <vyasevic@redhat.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-13workqueue: rename cpu_workqueue to pool_workqueueTejun Heo
workqueue has moved away from global_cwqs to worker_pools and with the scheduled custom worker pools, wforkqueues will be associated with pools which don't have anything to do with CPUs. The workqueue code went through significant amount of changes recently and mass renaming isn't likely to hurt much additionally. Let's replace 'cpu' with 'pool' so that it reflects the current design. * s/struct cpu_workqueue_struct/struct pool_workqueue/ * s/cpu_wq/pool_wq/ * s/cwq/pwq/ This patch is purely cosmetic. Signed-off-by: Tejun Heo <tj@kernel.org>
2013-02-13libceph: add a compatibility check interfaceAlex Elder
An upcoming change implements semantic change that could lead to a crash if an old version of the libceph kernel module is used with a new version of the rbd kernel module. In order to preclude that possibility, this adds a compatibilty check interface. If this interface doesn't exist, the modules are obviously not compatible. But if it does exist, this provides a way of letting the caller know whether it will operate properly with this libceph module. Perhaps confusingly, it returns false right now. The semantic change mentioned above will make it return true. This resolves: http://tracker.ceph.com/issues/3800 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
2013-02-13libceph: fix messenger CONFIG_BLOCK dependenciesAlex Elder
The ceph messenger has a few spots that are only used when bio messages are supported, and that's only when CONFIG_BLOCK is defined. This surrounds a couple of spots with #ifdef's that would cause a problem if CONFIG_BLOCK were not present in the kernel configuration. This resolves: http://tracker.ceph.com/issues/3976 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
2013-02-13bridge: Separate egress policy bitmapVlad Yasevich
Add an ability to configure a separate "untagged" egress policy to the VLAN information of the bridge. This superseeds PVID policy and makes PVID ingress-only. The policy is configured with a new flag and is represented as a port bitmap per vlan. Egress frames with a VLAN id in "untagged" policy bitmap would egress the port without VLAN header. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-13bridge: Add vlan support to static neighborsVlad Yasevich
When a user adds bridge neighbors, allow him to specify VLAN id. If the VLAN id is not specified, the neighbor will be added for VLANs currently in the ports filter list. If no VLANs are configured on the port, we use vlan 0 and only add 1 entry. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Acked-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-13bridge: Add the ability to configure pvidVlad Yasevich
A user may designate a certain vlan as PVID. This means that any ingress frame that does not contain a vlan tag is assigned to this vlan and any forwarding decisions are made with this vlan in mind. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-13bridge: Dump vlan information from a bridge portVlad Yasevich
Using the RTM_GETLINK dump the vlan filter list of a given bridge port. The information depends on setting the filter flag similar to how nic VF info is dumped. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-13bridge: Add netlink interface to configure vlans on bridge portsVlad Yasevich
Add a netlink interface to add and remove vlan configuration on bridge port. The interface uses the RTM_SETLINK message and encodes the vlan configuration inside the IFLA_AF_SPEC. It is possble to include multiple vlans to either add or remove in a single message. Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-14Merge branch 'usbhost17-for-mfd' of git://github.com/rogerq/linux into for-nextSamuel Ortiz
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14Merge branch 'usbhost17-common' of git://github.com/rogerq/linux into for-nextSamuel Ortiz
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Fix issue that booting OS with SD card insertedWei WANG
Realtek card reader supports both SD and MS card. According to the settings of rtsx MFD driver, SD host will be probed before MS host. If we boot/reboot Linux with SD card inserted, the resetting flow of SD card will succeed, and the following resetting flow of MS is sure to fail. Then MS upper-level driver will ask rtsx driver to turn power off. This request leads to the result that the following SD commands fail and SD card can't be accessed again. In this commit, Realtek's SD and MS host driver will check whether the card that upper driver requesting is the one existing in the slot. If not, Realtek's host driver will refuse the operation to make sure the exlusive accessing at the same time. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14Merge branch 'for-mfd' of git://git.linaro.org/people/ljones/linux-3.0-ux500 ↵Samuel Ortiz
into for-next Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: max8925: Add irqdomain for dtQing Xu
Add irqdomains for max8925's main irq, wrap irq register operations into irqdomain's map func. it is necessary for dt support. Also, add dt support for max8925 driver. Signed-off-by: Qing Xu <qingx@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Support RTS5227Roger Tseng
Support new model RTS5227. Signed-off-by: Roger Tseng <rogerable@realtek.com> Reviewed-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: vexpress: Add pseudo-GPIO based LEDsPawel Moll
The LEDs on the Versatile Express motherboard are controlled through simple memory-mapped register. This patch extends the pseudo-GPIO controller definition for these lines and creates generic "leds-gpio" device using them Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: rtsx: Fix typo in commentWei WANG
Fix a misspelling word in comment Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: wm5102: Make DSP scratch registers readableMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: 88pm80x: Remove redundant devm_* callsYi Zhang
devm_* functions are device managed and make error handling and code simpler; it also fix error exit paths Signed-off-by: Yi Zhang <yizhang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14watchdog: Add support for ux500_wdt watchdogFabio Baltieri
This patch adds support for the ux500_wdt watchdog that is found in ST-Ericsson Ux500 platform. The driver is based on PRCMU APIs. Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: dbx500-prcmu: Add watchdog ID definitionsFabio Baltieri
Add definition of watchdog IDs to be used by ux500_wdt driver. Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Move twl_i2c_read/write_u8 to header as inline functionPeter Ujfalusi
twl_i2c_read/write_u8 become as a simple wrapper over the twl_i2c_read/write. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-14mfd: twl-core: Remove no longer valid comment regarding to write buffer sizePeter Ujfalusi
With the regmap conversion there is no longeer a need to allocate bigger buffer for writes Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>