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2014-05-07ARM: at91: sam9rlek add touchscreen support through at91_adcAlexandre Belloni1-0/+14
at91_adc now supports reading a touchscreen for ADCs without a TSMR register. Enable touchscreen support through at91_adc. This allows to use both a touchscreen and the remaining ADC channel at the same time. Signed-off-by: Alexandre Belloni <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91: sam9rl: add at91_adc to support adc and touchscreenAlexandre Belloni2-0/+92
The ADC clock needs to be defined to enable the at91_adc driver. It is defined to the same speed that is used for atmel_tsadcc. Signed-off-by: Alexandre Belloni <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07iio: adc: at91: add sam9rl supportAlexandre Belloni1-0/+18
Signed-off-by: Alexandre Belloni <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07iio: adc: at91: remove unused include from include/machAlexandre Belloni2-121/+102
That include file is now only used by the at91_adc driver, remove it from include/mach for better driver separation. Signed-off-by: Alexandre Belloni <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91: sam9m10g45ek: Add touchscreen support through at91_adcAlexandre Belloni2-1/+2
at91_adc now supports reading a touchscreen for ADCs without a TSMR register. Enable touchscreen support through at91_adc. This allows to use both a touchscreen and the remaining ADC channel at the same time. Also, lower the clock for the ADC as it allows to have more stable reads and this is the speed used by atmel_tsadcc. It lowers the maximum throughput rate from 440000 samples per second to 12958 samples per second. It shouldn't be an issue as the CPU is not able to keep up reading samples at that frequency. Signed-off-by: Alexandre Belloni <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07iio: adc: at91_adc: Add support for touchscreens without TSMRAlexandre Belloni3-47/+174
Old ADCs, as present on the sam9rl and the sam9g45 don't have a TSMR register and the touchscreen support should be handled differently. Signed-off-by: Alexandre Belloni <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07iio: adc: at91: cleanup platform_dataAlexandre Belloni2-23/+19
num_channels and registers are not used anymore since they are defined inside the driver and assigned by matching the id_table. Also, struct at91_adc_reg_desc is now only used inside the driver. Signed-off-by: Alexandre Belloni <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91: sam9260: remove unused platform_dataAlexandre Belloni1-10/+0
num_channels and registers are not used anymore since they are defined inside the at91_adc driver and assigned by matching the id_table. Also, remove the mach/at91_adc.h include that is not necessary anymore. Signed-off-by: Alexandre Belloni <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91: sam9g45: remove unused platform_dataAlexandre Belloni1-10/+0
num_channels and registers are not used anymore since they are defined inside the at91_adc driver and assigned by matching the id_table. Also, remove the mach/at91_adc.h include that is not necessary anymore. Signed-off-by: Alexandre Belloni <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91/dt: define sam9rlek crystal frequenciesBoris BREZILLON1-0/+9
Define at91sam9rlek crystal frequencies. Signed-off-by: Boris BREZILLON <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91/dt: move at91sam9rl SoC to the new slow/main clock modelsBoris BREZILLON1-7/+39
Move at91sam9rl SoC to the new main/slow clock model. Signed-off-by: Boris BREZILLON <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91/dt: define main xtal frequency of the at91sam9261ek boardBoris BREZILLON1-0/+4
Define at91sam9261ek main crystal frequency. Signed-off-by: Boris BREZILLON <[email protected]> Acked-by: Jean-Jacques HIBLOT <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91/dt: move at91sam9261 SoC to the new main clock modelBoris BREZILLON1-2/+21
Signed-off-by: Boris BREZILLON <[email protected]> Acked-by: Jean-Jacques HIBLOT <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91/dt: add xtal frequencies to sama5d3 xplained boardBoris BREZILLON1-0/+8
Define crystal properties of sama5d3 xplained board. Signed-off-by: Boris BREZILLON <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91/dt: add xtal frequencies to sama5d3xcm boardsBoris BREZILLON1-0/+8
Define crystal frequencies of sama5d3xcm boards. Signed-off-by: Boris BREZILLON <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91/dt: move sama5d3 SoC to the new main/slow clk modelBoris BREZILLON1-6/+55
Replace the old main and clk definitions (fixed rate clk) by the new main and slow clk subtree definition (ck = mux(rc_osc, osc)). Signed-off-by: Boris BREZILLON <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07clk: at91: add slow clk documentationBoris BREZILLON1-0/+72
Add slow clk, and slow oscillators documentation. Signed-off-by: Boris BREZILLON <[email protected]> Acked-by: Mike Turquette <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07clk: at91: add slow clks driverBoris BREZILLON7-2/+557
AT91 slow clk is a clk multiplexer. In some SoCs (sam9x5, sama5, sam9g45 families) this multiplexer can choose among 2 sources: an internal RC oscillator circuit and an oscillator using an external crystal. In other Socs (sam9260 family) the multiplexer source is hardcoded with the OSCSEL signal. Signed-off-by: Boris BREZILLON <[email protected]> Acked-by: Mike Turquette <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07clk: at91: update main clk documentationBoris BREZILLON1-9/+47
Update main clk documentation to match main clk implementation rework. Signed-off-by: Boris BREZILLON <[email protected]> Acked-by: Mike Turquette <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07clk: at91: rework main clk implementationBoris BREZILLON3-63/+532
AT91 main clk is a clk multiplexer and not a simple fixed rate clk as currently implemented. In some SoCs (sam9x5, sama5, sam9g45 families) this multiplexer can choose among 2 sources: an internal RC oscillator circuit and an oscillator using an external crystal. In other Socs (sam9260, rm9200 families) the multiplexer source is hardcoded to the external crystal oscillator. Signed-off-by: Boris BREZILLON <[email protected]> Acked-by: Mike Turquette <[email protected]> Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ARM: at91: localize GPIO headerLinus Walleij42-13/+56
This moves the <mach/gpio.h> header in the AT91 platform down into the machine directory and removes the reliance on MACH_NEED_GPIO_H from the AT91. This does not move the platform to GENERIC_GPIO but localize the remaining work to be done for this to the mach-at91 folder. Signed-off-by: Linus Walleij <[email protected]> [[email protected]: adapt to newer kernel, add rsi-ews board] Signed-off-by: Nicolas Ferre <[email protected]>
2014-05-07ASoC: sam9g20_wm8731: remove useless mach/gpio.hNicolas Ferre1-1/+0
This include file is about to disapear. In addition it is useless for this code. So it is time to remove it. Signed-off-by: Nicolas Ferre <[email protected]> Acked-by: Mark Brown <[email protected]>
2014-05-07ARM: tegra: Support reboot modesThierry Reding1-0/+24
The boot ROM on Tegra SoCs supports booting into forced recovery mode (RCM) by setting a bit in the PMC scratch register 0. Similarily, the Android bootloader examines some of the bits in this register to disable autoboot or enter recovery mode. Support these modes by setting the corresponding bits depending on the specified reboot command (forced-recovery, bootloader, recovery). Recent systemd-based distributions allow this to be specified using an optional argument to the reboot command. Signed-off-by: Thierry Reding <[email protected]> Tested-by: Alexandre Courbot <[email protected]> Signed-off-by: Stephen Warren <[email protected]>
2014-05-05Merge tag 'renesas-soc2-for-v3.16' of ↵Olof Johansson1-35/+3
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Merge "Second Round of Renesas ARM Based SoC Updates for v3.16" from Simon Horman: Power management code which is only used by sh7372 (SH-Mobile AP4) based Mackerl board * Ignore callbacks for subsys generic_pm_domain_data * tag 'renesas-soc2-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: Ignore callbacks for subsys generic_pm_domain_data Signed-off-by: Olof Johansson <[email protected]>
2014-05-05Merge tag 'renesas-clock-for-v3.16' of ↵Olof Johansson10-52/+81
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Merge "Renesas ARM Based SoC Clock Updates for v3.16" from Simon Horman: SH Mobile shared clock code * Introduce shmobile_clk_workaround() r8a7791 (R-Car M2) SoC * Rename VSP1_SY clocks to VSP1_S * Correct the I2C clocks parents r8a7790 (R-Car H2) SoC * Remove old style audio clock * Rename VSP1_(SY|RT) clocks to VSP1_(S|R) * Fix the I2C clocks parents r8a7778 (R-Car M1) SoC * Remove old style audio clock * tag 'renesas-clock-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: r8a7790: remove old style audio clock ARM: shmobile: r8a7778: remove old style audio clock ARM: shmobile: r8a7791: Rename VSP1_SY clocks to VSP1_S ARM: shmobile: r8a7790: Rename VSP1_(SY|RT) clocks to VSP1_(S|R) ARM: shmobile: r8a7791: Fix the I2C clocks parents in legacy code ARM: shmobile: r8a7790: Fix the I2C clocks parents in legacy code ARM: shmobile: Introduce shmobile_clk_workaround() ARM: shmobile: r8a7791: Use rcar_gen2_read_mode_pins() helper Signed-off-by: Olof Johansson <[email protected]>
2014-05-05Merge tag 'renesas-soc-for-v3.16' of ↵Olof Johansson13-277/+66
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc Merge "Renesas ARM Based SoC Updates for v3.16" from Simon Horman: SH Mobile shared SoC code * Add shared shmobile_init_delay() r8a7791 (R-Car M2) and r8a7790 (R-Car H2) SoCs (R-Car Gen2 shared code) * Cache Mode Monitor Register Value r8a7791 (R-Car M2) SoC Check r8a7791 MD21 at SMP boot r8a7790 (R-Car H2) SoC * Make use of r8a7790_add_standard_devices() * Update r8a7791 CPU freq to 1500MHz r8a7778 (R-Car M1) SoC * Move "select RENESAS_INTC_IRQPIN" under SoC emev2 (Emma Mobale EV2) SoC * Remove legacy EMEV2 SoC support * tag 'renesas-soc-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: r8a7778/bockw: Move "select RENESAS_INTC_IRQPIN" under SoC ARM: shmobile: Check r8a7791 MD21 at SMP boot ARM: shmobile: rcar-gen2: Cache Mode Monitor Register Value ARM: shmobile: Make use of r8a7790_add_standard_devices() ARM: shmobile: Remove EMEV2 header file ARM: shmobile: Remove legacy EMEV2 SoC support ARM: shmobile: Add shared shmobile_init_delay() ARM: shmobile: Update r8a7791 CPU freq to 1500MHz in C Signed-off-by: Olof Johansson <[email protected]>
2014-05-04ARM: sunxi: Split the various SoCs support in KconfigMaxime Ripard1-7/+30
This will allow to better isolate various options, and reduce the overall kernel size if we're interested in only one of the SoCs. Signed-off-by: Maxime Ripard <[email protected]>
2014-05-04Linux 3.15-rc4Linus Torvalds1-1/+1
2014-05-04Merge tag 'locks-v3.15-3' of git://git.samba.org/jlayton/linuxLinus Torvalds1-1/+1
Pull file locking change from Jeff Layton: "Only an email address change to the MAINTAINERS file" * tag 'locks-v3.15-3' of git://git.samba.org/jlayton/linux: MAINTAINERS: email address change for Jeff Layton
2014-05-04Merge tag 'arm64-fixes' of ↵Linus Torvalds8-7/+50
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Catalin Marinas: "These are mostly arm64 fixes with an additional arm(64) platform fix for the initialisation of vexpress clocks (the latter only affecting arm64; the arch/arm64 code is SoC agnostic and does not rely on early SoC-specific calls) - vexpress platform clocks initialisation moved earlier following the arm64 move of of_clk_init() call in a previous commit - Default DMA ops changed to non-coherent to preserve compatibility with 32-bit ARM DT files. The "dma-coherent" property can be used to explicitly mark a device coherent. The Applied Micro DT file has been updated to avoid DMA cache maintenance for the X-Gene SATA controller (the only arm64 related driver with such assumption in -rc mainline) - Fixmap correction for earlyprintk - kern_addr_valid() fix for huge pages" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: vexpress: Initialise the sysregs before setting up the clocks arm64: Mark the Applied Micro X-Gene SATA controller as DMA coherent arm64: Use bus notifiers to set per-device coherent DMA ops arm64: Make default dma_ops to be noncoherent arm64: fixmap: fix missing sub-page offset for earlyprintk arm64: Fix for the arm64 kern_addr_valid() function
2014-05-04Merge tag 'scsi-fixes' of ↵Linus Torvalds2-2/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is two patches both fixing bugs in drivers (virtio-scsi and mpt2sas) causing an oops in certain circumstances" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] virtio-scsi: Skip setting affinity on uninitialized vq [SCSI] mpt2sas: Don't disable device twice at suspend.
2014-05-04vexpress: Initialise the sysregs before setting up the clocksCatalin Marinas1-0/+2
Following arm64 commit bc3ee18a7a57 (arm64: init: Move of_clk_init to time_init()), vexpress_osc_of_setup() is called via of_clk_init() long before initcalls are issued. Initialising the vexpress oscillators requires the vespress sysregs to be already initialised, so this patch adds an explicit call to vexpress_sysreg_of_early_init() in vexpress oscillator setup function. Signed-off-by: Catalin Marinas <[email protected]> Tested-by: Will Deacon <[email protected]> Acked-by: Will Deacon <[email protected]> Tested-by: Pawel Moll <[email protected]> Acked-by: Pawel Moll <[email protected]> Cc: Mike Turquette <[email protected]>
2014-05-03arm64: Mark the Applied Micro X-Gene SATA controller as DMA coherentCatalin Marinas2-0/+6
Since the default DMA ops for arm64 are non-coherent, mark the X-Gene controller explicitly as dma-coherent to avoid additional cache maintenance. Signed-off-by: Catalin Marinas <[email protected]> Cc: Loc Ho <[email protected]>
2014-05-03arm64: Use bus notifiers to set per-device coherent DMA opsCatalin Marinas2-2/+33
Recently, the default DMA ops have been changed to non-coherent for alignment with 32-bit ARM platforms (and DT files). This patch adds bus notifiers to be able to set the coherent DMA ops (with no cache maintenance) for devices explicitly marked as coherent via the "dma-coherent" DT property. Signed-off-by: Catalin Marinas <[email protected]>
2014-05-03arm64: Make default dma_ops to be noncoherentRitesh Harjani1-1/+1
Currently arm64 dma_ops is by default made coherent which makes it opposite in default policy from arm. Make default dma_ops to be noncoherent (same as arm), as currently there aren't any dma-capable drivers which assumes coherent ops Signed-off-by: Ritesh Harjani <[email protected]> Acked-by: Will Deacon <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2014-05-03arm64: fixmap: fix missing sub-page offset for earlyprintkMarc Zyngier2-4/+5
Commit d57c33c5daa4 (add generic fixmap.h) added (among other similar things) set_fixmap_io to deal with early ioremap of devices. More recently, commit bf4b558eba92 (arm64: add early_ioremap support) converted the arm64 earlyprintk to use set_fixmap_io. A side effect of this conversion is that my virtual machines have stopped booting when I pass "earlyprintk=uart8250-8bit,0x3f8" to the guest kernel. Turns out that the new earlyprintk code doesn't care at all about sub-page offsets, and just assumes that the earlyprintk device will be page-aligned. Obviously, that doesn't play well with the above example. Further investigation shows that set_fixmap_io uses __set_fixmap instead of __set_fixmap_offset. A fix is to introduce a set_fixmap_offset_io that uses the latter, and to remove the superflous call to fix_to_virt (which only returns the value that set_fixmap_io has already given us). With this applied, my VMs are back in business. Tested on a Cortex-A57 platform with kvmtool as platform emulation. Cc: Will Deacon <[email protected]> Acked-by: Mark Salter <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2014-05-03arm64: Fix for the arm64 kern_addr_valid() functionDave Anderson1-0/+3
Fix for the arm64 kern_addr_valid() function to recognize virtual addresses in the kernel logical memory map. The function fails as written because it does not check whether the addresses in that region are mapped at the pmd level to 2MB or 512MB pages, continues the page table walk to the pte level, and issues a garbage value to pfn_valid(). Tested on 4K-page and 64K-page kernels. Signed-off-by: Dave Anderson <[email protected]> Signed-off-by: Catalin Marinas <[email protected]>
2014-05-03Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds7-37/+42
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "This udpate delivers: - A fix for dynamic interrupt allocation on x86 which is required to exclude the GSI interrupts from the dynamic allocatable range. This was detected with the newfangled tablet SoCs which have GPIOs and therefor allocate a range of interrupts. The MSI allocations already excluded the GSI range, so we never noticed before. - The last missing set_irq_affinity() repair, which was delayed due to testing issues - A few bug fixes for the armada SoC interrupt controller - A memory allocation fix for the TI crossbar interrupt controller - A trivial kernel-doc warning fix" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip: irq-crossbar: Not allocating enough memory irqchip: armanda: Sanitize set_irq_affinity() genirq: x86: Ensure that dynamic irq allocation does not conflict linux/interrupt.h: fix new kernel-doc warnings irqchip: armada-370-xp: Fix releasing of MSIs irqchip: armada-370-xp: implement the ->check_device() msi_chip operation irqchip: armada-370-xp: fix invalid cast of signed value into unsigned variable
2014-05-03Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds5-3/+37
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "This update brings along: - Two fixes for long standing bugs in the hrtimer code, one which prevents remote enqueuing and the other preventing arbitrary delays after a interrupt hang was detected - A fix in the timer wheel which prevents math overflow - A fix for a long standing issue with the architected ARM timer related to the C3STOP mechanism. - A trivial compile fix for nspire SoC clocksource" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timer: Prevent overflow in apply_slack hrtimer: Prevent remote enqueue of leftmost timers hrtimer: Prevent all reprogramming if hang detected clocksource: nspire: Fix compiler warning clocksource: arch_arm_timer: Fix age-old arch timer C3STOP detection issue
2014-05-03Merge tag 'trace-fixes-v3.15-rc3' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "This is a small fix where the trigger code used the wrong rcu_dereference(). It required rcu_dereference_sched() instead of the normal rcu_dereference(). It produces a nasty RCU lockdep splat due to the incorrect rcu notation" Acked-by: Paul E. McKenney <[email protected]> * tag 'trace-fixes-v3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Use rcu_dereference_sched() for trace event triggers
2014-05-02tracing: Use rcu_dereference_sched() for trace event triggersSteven Rostedt (Red Hat)1-1/+1
As trace event triggers are now part of the mainline kernel, I added my trace event trigger tests to my test suite I run on all my kernels. Now these tests get run under different config options, and one of those options is CONFIG_PROVE_RCU, which checks under lockdep that the rcu locking primitives are being used correctly. This triggered the following splat: =============================== [ INFO: suspicious RCU usage. ] 3.15.0-rc2-test+ #11 Not tainted ------------------------------- kernel/trace/trace_events_trigger.c:80 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 4 locks held by swapper/1/0: #0: ((&(&j_cdbs->work)->timer)){..-...}, at: [<ffffffff8104d2cc>] call_timer_fn+0x5/0x1be #1: (&(&pool->lock)->rlock){-.-...}, at: [<ffffffff81059856>] __queue_work+0x140/0x283 #2: (&p->pi_lock){-.-.-.}, at: [<ffffffff8106e961>] try_to_wake_up+0x2e/0x1e8 #3: (&rq->lock){-.-.-.}, at: [<ffffffff8106ead3>] try_to_wake_up+0x1a0/0x1e8 stack backtrace: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.15.0-rc2-test+ #11 Hardware name: /DG965MQ, BIOS MQ96510J.86A.0372.2006.0605.1717 06/05/2006 0000000000000001 ffff88007e083b98 ffffffff819f53a5 0000000000000006 ffff88007b0942c0 ffff88007e083bc8 ffffffff81081307 ffff88007ad96d20 0000000000000000 ffff88007af2d840 ffff88007b2e701c ffff88007e083c18 Call Trace: <IRQ> [<ffffffff819f53a5>] dump_stack+0x4f/0x7c [<ffffffff81081307>] lockdep_rcu_suspicious+0x107/0x110 [<ffffffff810ee51c>] event_triggers_call+0x99/0x108 [<ffffffff810e8174>] ftrace_event_buffer_commit+0x42/0xa4 [<ffffffff8106aadc>] ftrace_raw_event_sched_wakeup_template+0x71/0x7c [<ffffffff8106bcbf>] ttwu_do_wakeup+0x7f/0xff [<ffffffff8106bd9b>] ttwu_do_activate.constprop.126+0x5c/0x61 [<ffffffff8106eadf>] try_to_wake_up+0x1ac/0x1e8 [<ffffffff8106eb77>] wake_up_process+0x36/0x3b [<ffffffff810575cc>] wake_up_worker+0x24/0x26 [<ffffffff810578bc>] insert_work+0x5c/0x65 [<ffffffff81059982>] __queue_work+0x26c/0x283 [<ffffffff81059999>] ? __queue_work+0x283/0x283 [<ffffffff810599b7>] delayed_work_timer_fn+0x1e/0x20 [<ffffffff8104d3a6>] call_timer_fn+0xdf/0x1be^M [<ffffffff8104d2cc>] ? call_timer_fn+0x5/0x1be [<ffffffff81059999>] ? __queue_work+0x283/0x283 [<ffffffff8104d823>] run_timer_softirq+0x1a4/0x22f^M [<ffffffff8104696d>] __do_softirq+0x17b/0x31b^M [<ffffffff81046d03>] irq_exit+0x42/0x97 [<ffffffff81a08db6>] smp_apic_timer_interrupt+0x37/0x44 [<ffffffff81a07a2f>] apic_timer_interrupt+0x6f/0x80 <EOI> [<ffffffff8100a5d8>] ? default_idle+0x21/0x32 [<ffffffff8100a5d6>] ? default_idle+0x1f/0x32 [<ffffffff8100ac10>] arch_cpu_idle+0xf/0x11 [<ffffffff8107b3a4>] cpu_startup_entry+0x1a3/0x213 [<ffffffff8102a23c>] start_secondary+0x212/0x219 The cause is that the triggers are protected by rcu_read_lock_sched() but the data is dereferenced with rcu_dereference() which expects it to be protected with rcu_read_lock(). The proper reference should be rcu_dereference_sched(). Cc: Tom Zanussi <[email protected]> Cc: [email protected] # 3.14+ Signed-off-by: Steven Rostedt <[email protected]>
2014-05-02Merge tag 'pm+acpi-3.15-rc4' of ↵Linus Torvalds8-59/+85
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael Wysocki: "A bunch of regression fixes this time. They fix two regressions in the PNP subsystem, one in the ACPI processor driver and one in the ACPI EC driver, four cpufreq driver regressions and an unrelated bug in one of the drivers. The regressions are recent or introduced in 3.14. Specifics: - There are two bugs in the ACPI PNP core that cause errors to be returned if optional ACPI methods are not present. After an ACPI core change made in 3.14 one of those errors leads to serial port suspend failures on some systems. Fix from Rafael J Wysocki. - A recently added PNP quirk related to Intel chipsets intorduced a build error in unusual configurations (PNP without PCI). Fix from Bjorn Helgaas. - An ACPI EC workaround related to system suspend on Samsung machines added in 3.14 introduced a race causing some valid EC events to be discarded. Fix from Kieran Clancy. - The acpi-cpufreq driver fails to load on some systems after a 3.14 commit related to APIC ID parsing that overlooked one corner case. Fix from Lan Tianyu. - Fix for a recently introduced build problem in the ppc-corenet cpufreq driver from Tim Gardner. - A recent cpufreq core change to ensure serialization of frequency transitions for drivers with a ->target_index() callback overlooked the fact that some of those drivers had been doing operations introduced by it into the core already by themselves. That resulted in a mess in which the core and the drivers try to do the same thing and block each other which leads to deadlocks. Fixes for the powernow-k7, powernow-k6, and longhaul cpufreq drivers from Srivatsa S Bhat. - Fix for a computational error in the powernow-k6 cpufreq driver from Srivatsa S Bhat" * tag 'pm+acpi-3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / processor: Fix failure of loading acpi-cpufreq driver PNP / ACPI: Do not return errors if _DIS or _SRS are not present PNP: Fix compile error in quirks.c ACPI / EC: Process rather than discard events in acpi_ec_clear cpufreq: ppc-corenet-cpufreq: Fix __udivdi3 modpost error cpufreq: powernow-k7: Fix double invocation of cpufreq_freq_transition_begin/end cpufreq: powernow-k6: Fix double invocation of cpufreq_freq_transition_begin/end cpufreq: powernow-k6: Fix incorrect comparison with max_multipler cpufreq: longhaul: Fix double invocation of cpufreq_freq_transition_begin/end
2014-05-02Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds1-0/+17
Pull driver core deferred probe fix from Grant Likely: "Drivercore race condition fix (exposed by devicetree) This branch fixes a bug where a device can get stuck in the deferred list even though all its dependencies are met. The bug has existed for a long time, but new platform conversions to device tree have exposed it. This patch is needed to get those platforms working. This was the pending bug fix I mentioned in my previous pull request. Normally this would go through Greg's tree seeing that it is a drivercore change, but devicetree exposes the problem. I've discussed with Greg and he okayed me asking you to pull directly" * tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: drivercore: deferral race condition fix
2014-05-03Merge branches 'acpi-ec' and 'acpi-processor'Rafael J. Wysocki2-12/+16
* acpi-ec: ACPI / EC: Process rather than discard events in acpi_ec_clear * acpi-processor: ACPI / processor: Fix failure of loading acpi-cpufreq driver
2014-05-03Merge branch 'pnp'Rafael J. Wysocki2-20/+28
* pnp: PNP / ACPI: Do not return errors if _DIS or _SRS are not present PNP: Fix compile error in quirks.c
2014-05-03Merge branch 'pm-cpufreq'Rafael J. Wysocki4-27/+41
* pm-cpufreq: cpufreq: ppc-corenet-cpufreq: Fix __udivdi3 modpost error cpufreq: powernow-k7: Fix double invocation of cpufreq_freq_transition_begin/end cpufreq: powernow-k6: Fix double invocation of cpufreq_freq_transition_begin/end cpufreq: powernow-k6: Fix incorrect comparison with max_multipler cpufreq: longhaul: Fix double invocation of cpufreq_freq_transition_begin/end
2014-05-02Merge tag 'dm-3.15-fixes' of ↵Linus Torvalds3-12/+81
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: "A few dm-thinp fixes for changes merged in 3.15-rc1. A dm-verity fix for an immutable biovec regression that affects 3.14+. A dm-cache fix to properly quiesce when using writethrough mode (3.14+)" * tag 'dm-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm cache: fix writethrough mode quiescing in cache_map dm thin: use INIT_WORK_ONSTACK in noflush_work to avoid ODEBUG warning dm verity: fix biovecs hash calculation regression dm thin: fix rcu_read_lock being held in code that can sleep dm thin: irqsave must always be used with the pool->lock spinlock
2014-05-02Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2-2/+13
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Peter Anvin: "Two very small changes: one fix for the vSMP Foundation platform, and one to help LLVM not choke on options it doesn't understand (although it probably should)" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/vsmp: Fix irq routing x86: LLVMLinux: Wrap -mno-80387 with cc-option
2014-05-02Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds7-31/+70
Pull KVM fixes from Paolo Bonzini: - Fix for a Haswell regression in nested virtualization, introduced during the merge window. - A fix from Oleg to async page faults. - A bunch of small ARM changes. - A trivial patch to use the new MSI-X API introduced during the merge window. * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: ARM: vgic: Fix the overlap check action about setting the GICD & GICC base address. KVM: arm/arm64: vgic: fix GICD_ICFGR register accesses KVM: async_pf: mm->mm_users can not pin apf->mm KVM: ARM: vgic: Fix sgi dispatch problem MAINTAINERS: co-maintainance of KVM/{arm,arm64} arm: KVM: fix possible misalignment of PGDs and bounce page KVM: x86: Check for host supported fields in shadow vmcs kvm: Use pci_enable_msix_exact() instead of pci_enable_msix() ARM: KVM: disable KVM in Kconfig on big-endian systems
2014-05-02Merge branch 'for-linus' of ↵Linus Torvalds2-6/+17
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: "Two bug fixes, one to fix a potential information leak in the BPF jit and common-io-layer fix for old firmware levels" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/bpf,jit: initialize A register if 1st insn is BPF_S_LDX_B_MSH s390/chsc: fix SEI usage on old FW levels
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