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2013-03-07cputime: Dynamically scale cputime for full dynticks accountingFrederic Weisbecker1-2/+2
The full dynticks cputime accounting is able to account either using the tick or the context tracking subsystem. This way the housekeeping CPU can keep the low overhead tick based solution. This latter mode has a low jiffies resolution granularity and need to be scaled against CFS precise runtime accounting to improve its result. We are doing this for CONFIG_TICK_CPU_ACCOUNTING, now we also need to expand it to full dynticks accounting dynamic off-case as well. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Kevin Hilman <khilman@linaro.org> Cc: Mats Liljegren <mats.liljegren@enea.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2013-03-07context_tracking: Restore correct previous context state on exception exitFrederic Weisbecker1-7/+12
On exception exit, we restore the previous context tracking state based on the regs of the interrupted frame. Iff that frame is in user mode as stated by user_mode() helper, we restore the context tracking user mode. However there is a tiny chunck of low level arch code after we pass through user_enter() and until the CPU eventually resumes userspace. If an exception happens in this tiny area, exception_enter() correctly exits the context tracking user mode but exception_exit() won't restore it because of the value returned by user_mode(regs). As a result we may return to userspace with the wrong context tracking state. To fix this, change exception_enter() to return the context tracking state prior to its call and pass this saved state to exception_exit(). This restores the real context tracking state of the interrupted frame. (May be this patch was suggested to me, I don't recall exactly. If so, sorry for the missing credit). Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Kevin Hilman <khilman@linaro.org> Cc: Mats Liljegren <mats.liljegren@enea.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2013-03-07context_tracking: Move exception handling to generic codeFrederic Weisbecker1-1/+16
Exceptions handling on context tracking should share common treatment: on entry we exit user mode if the exception triggered in that context. Then on exception exit we return to that previous context. Generalize this to avoid duplication across archs. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Kevin Hilman <khilman@linaro.org> Cc: Mats Liljegren <mats.liljegren@enea.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2013-03-07tick: Dynamically set broadcast irq affinityDaniel Lezcano1-0/+5
When a cpu goes to a deep idle state where its local timer is shutdown, it notifies the time frame work to use the broadcast timer instead. Unfortunately, the broadcast device could wake up any CPU, including an idle one which is not concerned by the wake up at all. So in the worst case an idle CPU will wake up to send an IPI to the CPU whose timer expired. Provide an opt-in feature CLOCK_EVT_FEAT_DYNIRQ which tells the core that is should set the interrupt affinity of the broadcast interrupt to the cpu which has the earliest expiry time. This avoids unnecessary spurious wakeups and IPIs. [ tglx: Adopted to cpumask rework, silenced an uninitialized warning, massaged changelog ] Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: viresh.kumar@linaro.org Cc: jacob.jun.pan@linux.intel.com Cc: linux-arm-kernel@lists.infradead.org Cc: santosh.shilimkar@ti.com Cc: linaro-kernel@lists.linaro.org Cc: patches@linaro.org Cc: rickard.andersson@stericsson.com Cc: vincent.guittot@linaro.org Cc: linus.walleij@stericsson.com Cc: john.stultz@linaro.org Link: http://lkml.kernel.org/r/1362219013-18173-3-git-send-email-daniel.lezcano@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-03-07HID: ll_driver: Extend the interface with idle requestsBenjamin Tissoires1-0/+19
Some drivers send the idle command directly to underlying device, creating an unwanted dependency on the underlying transport layer. This patch adds hid_hw_idle() to the interface, thereby removing usbhid from the lion share of the drivers. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-03-07pm2301-charger: Adjust interrupt handler behaviorM BenZoubeir1-1/+1
Signed-off-by: M BenZoubeir <mustapha.ben.zoubeir-xsig@stericsson.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com>
2013-03-07ab8500-charger: Add UsbLineCtrl2 referenceMarcus Cooper1-0/+1
When the state of USB Charge detection is changed then the calls use a define for another register in other bank. This change creates a new define for the correct register and removes the magic numbers that are present. Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Hakan BERG <hakan.berg@stericsson.com> Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
2013-03-07ab8500-bm: Add support for the new ab8540 platformLee Jones2-2/+13
Provide AB8540 platform specific information required to run the Battery Management subsystem on AB8540 based devices. For this to happen we see the introduction of separate platform specific data structures and a means in which to process them. Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-03-07ab8500-bm: Add usb power path supportLee Jones3-0/+17
AB8540 supports power path function in USB charging mode for fast power up with dead and weak battery, and it could extend the battery age. When USB charging starts, if the Vbattrue is below than SW cut off voltage, power path and pre-charge should be enabled. If Vbattrue is higher than SW cut off voltage, power path and pre-charge should be disabled. This is to make sure full current to battery charge. At the end of charge, power path should be enable again to reduce charging the battery again. Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-03-07ab8500-bm: Charge only mode fixes for the ab9540Lee Jones1-0/+2
Fix for charging not getting enabled in charge only mode by external charger. Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-03-07ab8500-bm: Quick re-attach charging behaviourLee Jones1-0/+1
Due to a bug in some AB8500 ASICs charger removal cannot always be detected if the removal and reinsertion is done to close in time. This patch detects above described case and handles the situation so that charging will be kept turned on. Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-03-07ab8500-charger: Add backup battery charge voltages on the ab8540Yang QU1-4/+20
Add 2.7v, 2.9v, 3.0v, 3.2v and 3.3v charging voltages for backup battery. Before that only 2.5v, 2.6v, 2.8v, 3.1v were available. Signed-off-by: Yang QU <yang.qu@stericsson.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Maxime COQUELIN <maxime.coquelin@stericsson.com> Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com> Tested-by: Xiao Mei ZHANG <xiaomei.zhang@stericsson.com>
2013-03-07ab8500-fg: Add power cut feature for ab8505 and ab8540Lee Jones2-0/+28
Add support for a power cut feature which allows user to configure when ab8505 and ab8540 based platforms should shut down system due to low battery. Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-03-07mfd: ab8500-debug: Add support for the AB8540Lee Jones1-0/+3
Allow GPADC debug information to be shown when executing on an AB8540 based platform. Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@stericsson.com> Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com> Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2013-03-07mfd: ab8500-gpadc: Add support for the AB8540Lee Jones1-14/+29
This patch enables the GPADC to work on AB8540 based platforms. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2013-03-07mfd: ab8500-sysctrl: Add new reset functionLee Jones1-0/+6
Add a new reset function which uses the AB WD with 0 timeout. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2013-03-07mfd: ab8500-core: Add Interrupt support for ab8540Lee Jones1-0/+1
ITSource/ITLatch 7, 8, 9 and 10 don't exist on AB8540. This patch replaces them with '-1' in the interrupt list, and handles the '-1' in the code accordingly. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2013-03-07pinctrl: Declare operation structures as constLaurent Pinchart1-3/+3
The pinconf, pinctrl and pinmux operation structures hold function pointers that are never modified. Declare them as const. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-07mfd: ab8500-gpadc: Add gpadc hw conversionLee Jones1-4/+26
Add the support of gpacd hw conversion and make the number of sample configurable. Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@stericsson.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Mattias WALLIN <mattias.wallin@stericsson.com> Tested-by: Michel JAOUEN <michel.jaouen@stericsson.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2013-03-07mfd: ab8500-sysctrl: Update correct turn on statusRajkumar Kasirajan1-0/+2
In L9540, turn_on_status register is not updated correctly if the device is rebooted with AC/USB charger connected. Due to this, the device boots android instead of entering into charge only mode. Read the AC/USB status register to detect the charger presence and update the turn on status manually. Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com> Signed-off-by: Per Forlin <per.forlin@stericsson.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Rupesh KUMAR <rupesh.kumar@stericsson.com> Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com> Tested-by: Rupesh KUMAR <rupesh.kumar@stericsson.com> Tested-by: Philippe LANGLAIS <philippe.langlais@stericsson.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
2013-03-07ssb: fix unaligned access to mac addressHauke Mehrtens1-3/+3
The mac address should be aligned to u16 to prevent an unaligned access in drivers/ssb/pci.c where it is casted to __be16. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-03-06team: introduce random modeJiri Pirko1-0/+20
As suggested by Eric Dumazet, allow user to select mode which chooses TX port randomly. Functionality should be more of less similar to round-robin mode with even lower overhead. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-06team: introduce two default team_modeop functions and use them in modesJiri Pirko1-1/+4
No need to duplicate code for this. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-06mac80211: restrict peer's VHT capabilities to ownJohannes Berg1-1/+2
Implement restricting peer VHT capabilities to the device's own capabilities. This is useful when a single driver supports more than one device and the devices have different capabilities (often they will differ in the number of spatial streams), but in particular is also necessary for VHT capability overrides to work correctly -- otherwise it'd be possible to e.g. advertise, due to overrides, that TX-STBC is not supported, but then still use it to TX to the AP because it supports RX-STBC. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06wireless: remove unused VHT MCS definesJohannes Berg1-5/+0
There's an enum with the same values (but slightly different names except for NOT_SUPPORTED) that is actually used, so remove the defines. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06ieee80211: mark 802.11 related structs as being 2-byte alignedFelix Fietkau1-8/+8
Regardless of what header features they use, or if they align the IP header or not, 802.11 packets from all drivers guarantee a 2-byte alignment (and there's a debug WARN_ON in case they don't). Annotate packet structs with __aligned(2) to allow the compiler to use 16-bit load/store operations on platforms with extremely inefficient unaligned access (e.g. MIPS). This reduces code size and improves performance on affected platforms and causes no binary code change on others. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06wireless: move sequence number arithmetic to ieee80211.hJohannes Berg1-0/+28
Move the sequence number arithmetic code from mac80211 to ieee80211.h so others can use it. Also rename the functions from _seq to _sn, they operate on the sequence number, not the sequence_control field. Also move macros to convert the sequence control to/from the sequence number value from various drivers. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06perf: Remove include of cgroup.h from perf_event.hLi Zefan1-17/+1
Move struct perf_cgroup_info and perf_cgroup to kernel/perf/core.c, and then we can remove include of cgroup.h. Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/r/513568A0.6020804@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-06sched: Move group scheduling functions out of include/linux/sched.hLi Zefan1-21/+0
- Make sched_group_{set_,}runtime(), sched_group_{set_,}period() and sched_rt_can_attach() static. - Move sched_{create,destroy,online,offline}_group() to kernel/sched/sched.h. - Remove declaration of sched_group_shares(). Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5135A7C5.3000708@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-06sched: Make default_scale_freq_power() staticLi Zefan1-3/+0
As default_scale_{freq,smt}_power() and update_rt_power() are used in kernel/sched/fair.c only, annotate them as static functions. Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5135A7AF.8010900@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-06sched: Move struct sched_class to kernel/sched/sched.hLi Zefan1-59/+0
It's used internally only. Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5135A79F.8090502@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-06sched: Move wake flags to kernel/sched/sched.hLi Zefan1-7/+0
They are used internally only. Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5135A78E.7040609@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-06sched: Move struct sched_group to kernel/sched/sched.hLi Zefan1-56/+2
Move struct sched_group_power and sched_group and related inline functions to kernel/sched/sched.h, as they are used internally only. Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5135A77F.2010705@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-06sched: Move SCHED_LOAD_SHIFT macros to kernel/sched/sched.hLi Zefan1-25/+0
They are used internally only. Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5135A771.4070104@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-06sched: Remove test_sd_parent()Li Zefan1-9/+0
It's unused. Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5135A75F.4070202@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-06sched: Remove some dummy functionsLi Zefan1-12/+0
No one will call those functions if CONFIG_SCHED_DEBUG=n. Signed-off-by: Li Zefan <lizefan@huawei.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5135A748.3050206@huawei.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-06mfd: arizona: Define additional FLL control registersMark Brown1-0/+40
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-06net: introduce NAPI_POLL_WEIGHTEric Dumazet1-0/+5
Some drivers use a too big NAPI poll weight. This patch adds a NAPI_POLL_WEIGHT default value and issues an error message if a driver attempts to use a bigger weight. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-1/+3
Pull networking fixes from David Miller: "A moderately sized pile of fixes, some specifically for merge window introduced regressions although others are for longer standing items and have been queued up for -stable. I'm kind of tired of all the RDS protocol bugs over the years, to be honest, it's way out of proportion to the number of people who actually use it. 1) Fix missing range initialization in netfilter IPSET, from Jozsef Kadlecsik. 2) ieee80211_local->tim_lock needs to use BH disabling, from Johannes Berg. 3) Fix DMA syncing in SFC driver, from Ben Hutchings. 4) Fix regression in BOND device MAC address setting, from Jiri Pirko. 5) Missing usb_free_urb in ISDN Hisax driver, from Marina Makienko. 6) Fix UDP checksumming in bnx2x driver for 57710 and 57711 chips, fix from Dmitry Kravkov. 7) Missing cfgspace_lock initialization in BCMA driver. 8) Validate parameter size for SCTP assoc stats getsockopt(), from Guenter Roeck. 9) Fix SCTP association hangs, from Lee A Roberts. 10) Fix jumbo frame handling in r8169, from Francois Romieu. 11) Fix phy_device memory leak, from Petr Malat. 12) Omit trailing FCS from frames received in BGMAC driver, from Hauke Mehrtens. 13) Missing socket refcount release in L2TP, from Guillaume Nault. 14) sctp_endpoint_init should respect passed in gfp_t, rather than use GFP_KERNEL unconditionally. From Dan Carpenter. 15) Add AISX AX88179 USB driver, from Freddy Xin. 16) Remove MAINTAINERS entries for drivers deleted during the merge window, from Cesar Eduardo Barros. 17) RDS protocol can try to allocate huge amounts of memory, check that the user's request length makes sense, from Cong Wang. 18) SCTP should use the provided KMALLOC_MAX_SIZE instead of it's own, bogus, definition. From Cong Wang. 19) Fix deadlocks in FEC driver by moving TX reclaim into NAPI poll, from Frank Li. Also, fix a build error introduced in the merge window. 20) Fix bogus purging of default routes in ipv6, from Lorenzo Colitti. 21) Don't double count RTT measurements when we leave the TCP receive fast path, from Neal Cardwell." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits) tcp: fix double-counted receiver RTT when leaving receiver fast path CAIF: fix sparse warning for caif_usb rds: simplify a warning message net: fec: fix build error in no MXC platform net: ipv6: Don't purge default router if accept_ra=2 net: fec: put tx to napi poll function to fix dead lock sctp: use KMALLOC_MAX_SIZE instead of its own MAX_KMALLOC_SIZE rds: limit the size allocated by rds_message_alloc() MAINTAINERS: remove eexpress MAINTAINERS: remove drivers/net/wan/cycx* MAINTAINERS: remove 3c505 caif_dev: fix sparse warnings for caif_flow_cb ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver sctp: use the passed in gfp flags instead GFP_KERNEL ipv[4|6]: correct dropwatch false positive in local_deliver_finish l2tp: Restore socket refcount when sendmsg succeeds net/phy: micrel: Disable asymmetric pause for KSZ9021 bgmac: omit the fcs phy: Fix phy_device_free memory leak bnx2x: Fix KR2 work-around condition ...
2013-03-06Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds1-2/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes and cleanups from Thomas Gleixner: "Commit e5ab012c3271 ("nohz: Make tick_nohz_irq_exit() irq safe") is the first commit in the series and the minimal necessary bugfix, which needs to go back into stable. The remanining commits enforce irq disabling in irq_exit(), sanitize the hardirq/softirq preempt count transition and remove a bunch of no longer necessary conditionals." I personally love getting rid of the very subtle and confusing IRQ_EXIT_OFFSET thing. Even apart from the whole "more lines removed than added" thing. * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irq: Don't re-enable interrupts at the end of irq_exit irq: Remove IRQ_EXIT_OFFSET workaround Revert "nohz: Make tick_nohz_irq_exit() irq safe" irq: Sanitize invoke_softirq irq: Ensure irq_exit() code runs with interrupts disabled nohz: Make tick_nohz_irq_exit() irq safe
2013-03-06Merge branch 'core-urgent-for-linus' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull smpboot bugfix from Thomas Gleixner: "A single bugfix for a regression introduced with the conversion of the stop machine threads to the generic smpboot thread management facility" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: stop_machine: Mark per cpu stopper enabled early
2013-03-06KVM: Introduce KVM_VIRTIO_CCW_NOTIFY_BUS.Cornelia Huck1-0/+1
Add a new bus type for virtio-ccw devices on s390. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-06KVM: Initialize irqfd from kvm_init().Cornelia Huck1-0/+13
Currently, eventfd introduces module_init/module_exit functions to initialize/cleanup the irqfd workqueue. This only works, however, if no other module_init/module_exit functions are built into the same module. Let's just move the initialization and cleanup to kvm_init and kvm_exit. This way, it is also clearer where kvm startup may fail. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-03-06Merge tag 'iio-fixes-for-3.9a' of ↵Greg Kroah-Hartman1-3/+6
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: "First round of iio fixes post the 3.9 merge window. 1) Some little fixes for the ad5064 dac driver. 2) A build warning 'fix' for a false positive in st_sensors 3) A couple of missing dependencies on IIO_BUFFER. So nothing major and these mostly showed the advantages of the randconfig builds various people have performed."
2013-03-06syscalls.h: slightly reduce the jungles of macrosAl Viro1-34/+15
a) teach __MAP(num, m, <list of type/name pairs>) to take empty list (with num being 0, of course) b) fold types__... and args__... declaration and initialization into SYSCALL_METADATA(num, ...), making their use conditional on num != 0. That allows to use the SYSCALL_METADATA instead of its near-duplicate in SYSCALL_DEFINE0. c) make SYSCALL_METADATA expand to nothing in case if CONFIG_FTRACE_SYSCALLS is not defined; that allows to make SYSCALL_DEFINE0 and SYSCALL_DEFINEx definitions independent from CONFIG_FTRACE_SYSCALLS. d) kill SYSCALL_DEFINE - no users left (SYSCALL_DEFINE[0-6] is, of course, still alive and well). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-03-06get rid of union semop in sys_semctl(2) argumentsAl Viro1-1/+1
just have the bugger take unsigned long and deal with SETVAL case (when we use an int member in the union) explicitly. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-03-05cpuset: remove include of cgroup.h from cpuset.hLi Zefan1-1/+0
We don't need to include cgroup.h in cpuset.h. Signed-off-by: Li Zefan <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2013-03-05res_counter: remove include of cgroup.h from res_counter.hLi Zefan1-1/+1
It's not needed at all. Signed-off-by: Li Zefan <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2013-03-05cgroup: avoid accessing modular cgroup subsys structure without lockingLi Zefan1-3/+14
subsys[i] is set to NULL in cgroup_unload_subsys() at modular unload, and that's protected by cgroup_mutex, and then the memory *subsys[i] resides will be freed. So this is unsafe without any locking: if (!ss || ss->module) ... v2: - add a comment for enum cgroup_subsys_id - simplify the comment in cgroup_exit() Signed-off-by: Li Zefan <lizefan@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2013-03-05usb: gadget: composite: fix kernel-doc warningsNishanth Menon1-1/+2
A few trivial fixes for composite driver: Warning(include/linux/usb/composite.h:165): No description found for parameter 'fs_descriptors' Warning(include/linux/usb/composite.h:165): Excess struct/union/enum/typedef member 'descriptors' description in 'usb_function' Warning(include/linux/usb/composite.h:321): No description found for parameter 'gadget_driver' Warning(drivers/usb/gadget/composite.c:1777): Excess function parameter 'bind' description in 'usb_composite_probe' Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Kosina <trivial@kernel.org> Cc: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
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