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2019-07-06genirq: Update irq stats from NMI handlersShijith Thotton2-1/+11
The NMI handlers handle_percpu_devid_fasteoi_nmi() and handle_fasteoi_nmi() do not update the interrupt counts. Due to that the NMI interrupt count does not show up correctly in /proc/interrupts. Add the statistics and treat the NMI handlers in the same way as per cpu interrupts and prevent them from updating irq_desc::tot_count as this might be corrupted due to concurrency. [ tglx: Massaged changelog ] Fixes: 2dcf1fbcad35 ("genirq: Provide NMI handlers") Signed-off-by: Shijith Thotton <sthotton@marvell.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1562313336-11888-1-git-send-email-sthotton@marvell.com
2019-07-03Merge tag 'irqchip-5.3' of ↵Thomas Gleixner23-138/+1067
git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core Pull irqchip updates for Linux 5.3 from Marc Zyngier: - ACPI support for the exiu and mb86s7x drivers - New Renesas RZ/A1, Amazon al-fic drivers - Add quirk for Amazon Graviton GICv2m widget - Large Renesas driver cleanup - CSky mpintc trigger type fixes - Meson G12A driver support - Various minor cleanups
2019-07-03irqchip/gic-pm: Remove PM_CLK dependencySameer Pujar1-1/+0
gic-pm driver does not use pm-clk interface now and hence the dependency is removed from Kconfig. Signed-off-by: Sameer Pujar <spujar@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-07-03irqchip/al-fic: Introduce Amazon's Annapurna Labs Fabric Interrupt ↵Talel Shenhar4-0/+293
Controller Driver The Amazon's Annapurna Labs Fabric Interrupt Controller has 32 inputs. A FIC (Fabric Interrupt Controller) may be cascaded into another FIC or directly to the main CPU Interrupt Controller (e.g. GIC). Signed-off-by: Talel Shenhar <talel@amazon.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-07-03dt-bindings: interrupt-controller: Add Amazon's Annapurna Labs FICTalel Shenhar1-0/+29
Document Amazon's Annapurna Labs Fabric Interrupt Controller SoC binding. Signed-off-by: Talel Shenhar <talel@amazon.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-23softirq: Use __this_cpu_write() in takeover_tasklets()Muchun Song1-1/+1
The code is executed with interrupts disabled, so it's safe to use __this_cpu_write(). [ tglx: Massaged changelog ] Signed-off-by: Muchun Song <smuchun@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: joel@joelfernandes.org Cc: rostedt@goodmis.org Cc: frederic@kernel.org Cc: paulmck@linux.vnet.ibm.com Cc: alexander.levin@verizon.com Cc: peterz@infradead.org Link: https://lkml.kernel.org/r/20190618143305.2038-1-smuchun@gmail.com
2019-06-18irqchip/mbigen: Stop printing kernel addressesKefeng Wang1-2/+1
After commit ad67b74d2469d9b8 ("printk: hash addresses printed with %p"), it will print "____ptrval____" instead of actual addresses when mbigen create domain fails, Hisilicon MBIGEN-V2 HISI0152:00: Failed to create mbi-gen@(____ptrval____) irqdomain Hisilicon MBIGEN-V2: probe of HISI0152:00 failed with error -12 dev_xxx() helper contains the device info, HISI0152:00, which stands for mbigen ACPI HID and its UID, we can identify the failing probed mbigen, so just remove the printing "mgn_chip->base", and also add missing "\n". Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-17irqchip/gic: Add dependency for ARM_GIC_MAX_NRJiangfeng Xiao1-0/+1
CONFIG_ARM_GIC_MAX_NR is enabled by default. It is redundant in x86 and IA-64 where is without GIC. Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-12genirq/affinity: Remove unused argument from [__]irq_build_affinity_masks()Minwoo Im1-7/+5
The *affd argument is neither used in irq_build_affinity_masks() nor __irq_build_affinity_masks(). Remove it. Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ming Lei <ming.lei@redhat.com> Cc: Minwoo Im <minwoo.im@samsung.com> Cc: linux-block@vger.kernel.org Link: https://lkml.kernel.org/r/20190602112117.31839-1-minwoo.im.dev@gmail.com
2019-06-12genirq/timings: Add selftest for next event computationDaniel Lezcano1-0/+66
The circular buffers are now validated with selftests. The next interrupt index algorithm which is the hardest part to validate needs extra coverage. Add a selftest which uses the intervals stored in the arrays and insert all the values except the last one. The next event computation must return the same value as the last element which was not inserted. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20190527205521.12091-9-daniel.lezcano@linaro.org
2019-06-12genirq/timings: Add selftest for irqs circular bufferDaniel Lezcano1-0/+139
After testing the per cpu interrupt circular event, make sure the per interrupt circular buffer usage is correct. Add tests to validate the interrupt circular buffer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20190527205521.12091-8-daniel.lezcano@linaro.org
2019-06-12genirq/timings: Add selftest for circular arrayDaniel Lezcano3-0/+130
Due to the complexity of the code and the difficulty to debug it, add some selftests to the framework in order to spot issues or regression at boot time when the runtime testing is enabled for this subsystem. This tests the circular buffer at the limits and validates: - the encoding / decoding of the values - the macro to browse the irq timings circular buffer - the function to push data in the circular buffer Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20190527205521.12091-7-daniel.lezcano@linaro.org
2019-06-12genirq/timings: Encapsulate storing functionDaniel Lezcano1-19/+34
For the next patches providing the selftest, it is required to insert interval values directly in the buffer in order to check the correctness of the code. Encapsulate the code doing that in a always inline function in order to reuse it in the test code. No functional changes. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20190527205521.12091-6-daniel.lezcano@linaro.org
2019-06-12genirq/timings: Encapsulate timings pushDaniel Lezcano1-9/+12
For the next patches providing the selftest, it is required to artificially insert timings value in the circular buffer in order to check the correctness of the code. Encapsulate the common code between the future test code and the current code with an always-inline tag. No functional change. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20190527205521.12091-5-daniel.lezcano@linaro.org
2019-06-12genirq/timings: Optimize the period detection speedDaniel Lezcano1-1/+1
With a minimal period and if there is a period which is a multiple of it but lesser than the max period then it will be detected before and the minimal period will be never reached. 1 2 1 2 1 2 1 2 1 2 1 2 <-----> <-----> <-----> <-> <-> <-> <-> <-> <-> In that case, the minimum period is 2 and the maximum period is 5. That means all repeating pattern of 2 will be detected as repeating pattern of 4, it is pointless to go up to 2 when searching for the period as it will always fail. Remove one loop iteration by increasing the minimal period to 3. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20190527205521.12091-4-daniel.lezcano@linaro.org
2019-06-12genirq/timings: Fix timings buffer inspectionDaniel Lezcano1-5/+18
It appears the index beginning computation is not correct, the current code does: i = (irqts->count & IRQ_TIMINGS_MASK) - 1 If irqts->count is equal to zero, we end up with an index equal to -1, but that does not happen because the function checks against zero before and returns in such case. However, if irqts->count is a multiple of IRQ_TIMINGS_SIZE, the resulting & bit op will be zero and leads also to a -1 index. Re-introduce the iteration loop belonging to the previous variance code which was correct. Fixes: bbba0e7c5cda "genirq/timings: Add array suffix computation code" Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20190527205521.12091-3-daniel.lezcano@linaro.org
2019-06-12genirq/timings: Fix next event index functionDaniel Lezcano1-9/+42
The current code is luckily working with most of the interval samples testing but actually it fails to correctly detect pattern repetition breaking at the end of the buffer. Narrowing down the bug has been a real pain because of the pointers, so the routine is rewrittne by using indexes instead. Fixes: bbba0e7c5cda "genirq/timings: Add array suffix computation code" Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: andriy.shevchenko@linux.intel.com Link: https://lkml.kernel.org/r/20190527205521.12091-2-daniel.lezcano@linaro.org
2019-06-11irqchip/qcom: Use struct_size() in devm_kzalloc()Gustavo A. R. Silva1-3/+2
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = devm_kzalloc(dev, size, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = devm_kzalloc(dev, struct_size(instance, entry, count), GFP_KERNEL); Notice that, in this case, variable alloc_sz is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-11irqchip/irq-csky-mpintc: Remove unnecessary loop in interrupt handlerGuo Ren1-6/+2
csky_mpintc_handler() ->handle_domain_irq() ->irq_exit() ->invoke_softirq() ->__do_softirq() ->local_irq_enable() If new interrupt coming, it'll get into interrupt trap before return to csky_mpintc_handler(). So there is no need loop in csky_mpintc_handler. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-11dt-bindings: interrupt-controller: Update csky mpintcGuo Ren1-4/+16
Add trigger type setting for csky,mpintc. The driver also could support #interrupt-cells <1> and it wouldn't invalidate existing DTs. Here we only show the complete format. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Reviewed-by: Rob Herring <robh+dt@kernel.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-11irqchip/irq-csky-mpintc: Add triger typeGuo Ren1-1/+77
Support 4 triger types: - IRQ_TYPE_LEVEL_HIGH - IRQ_TYPE_LEVEL_LOW - IRQ_TYPE_EDGE_RISING - IRQ_TYPE_EDGE_FALLING All of above could be set in DeviceTree file and it still compatible with the old DeviceTree format. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-11irqchip/renesas-irqc: Use proper irq_chip name and parentGeert Uytterhoeven1-1/+2
The irq_chip .name field should contain the device's class (not instance) name, while .parent_device should point to the device itself. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-11irqchip/renesas-intc-irqpin: Use proper irq_chip name and parentGeert Uytterhoeven1-1/+2
The irq_chip .name field should contain the device's class (not instance) name, while .parent_device should point to the device itself. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-11irqchip/meson-gpio: Add support for Meson-G12A SoCXingyu Chen1-0/+1
The Meson-G12A SoC uses the same GPIO interrupt controller IP block as the other Meson SoCs, A totle of 100 pins can be spied on, which is the sum of: - 223:100 undefined (no interrupt) - 99:97 3 pins on bank GPIOE - 96:77 20 pins on bank GPIOX - 76:61 16 pins on bank GPIOA - 60:53 8 pins on bank GPIOC - 52:37 16 pins on bank BOOT - 36:28 9 pins on bank GPIOH - 27:12 16 pins on bank GPIOZ - 11:0 12 pins in the AO domain Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com> Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-11dt-bindings: interrupt-controller: New binding for Meson-G12A SoCXingyu Chen1-0/+1
Update the dt-binding document to support new compatible string for the GPIO interrupt controller which found in Amlogic's Meson-G12A SoC. Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com> Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-11irqchip: Enable compile-testing for Renesas driversGeert Uytterhoeven1-4/+16
Enable compile-testing for all Renesas interrupt controller drivers, except for RENESAS_H8300H_INTC. The latter relies on a function (ctrl_bclr()) that is not available on other architectures. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-11irqchip/gic-v2m: Add support for Amazon Graviton variant of GICv3+GICv2mZeev Zilberman4-20/+76
Add support for Amazon Graviton custom variant of GICv2m, where the message is encoded using the MSI message address, as opposed to standard GICv2m, where the SPI number is encoded in the MSI message data. In addition, the Graviton flavor of GICv2m is used along GICv3 (and not GICv2). Co-developed-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Zeev Zilberman <zeev@amazon.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-29irqchip/renesas-irqc: Convert to managed initializationsGeert Uytterhoeven1-39/+15
Simplify error handling by converting the driver to use managed allocations and initializations. Note that platform_get_resource() and ioremap_nocache() are combined in devm_platform_ioremap_resource(). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-29irqchip/renesas-irqc: Replace irqc_priv.pdev by irqc_priv.devGeert Uytterhoeven1-4/+3
Nothing really uses irqc_priv.pdev, all users need irqc_priv.pdev->dev. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-29irqchip/renesas-irqc: Add helper variable dev = &pdev->devGeert Uytterhoeven1-13/+13
The probe function uses "&pdev->dev" a lot, hence add a shorthand for that. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-29irqchip/renesas-irqc: Remove error messages on out-of-memory conditionsGeert Uytterhoeven1-2/+0
There is no need to print error messages if kzalloc() or ioremap_nocache() fail, as the memory allocation core already takes care of that. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-29irqchip/renesas-irqc: Remove unneeded inclusion of <linux/spinlock.h>Geert Uytterhoeven1-1/+0
The driver never used spinlocks, and thus does not need to include <linux/spinlock.h>. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-29irqchip: Add Renesas RZ/A1 Interrupt Controller driverGeert Uytterhoeven3-0/+288
Add a driver for the Renesas RZ/A1 Interrupt Controller. This supports using up to 8 external interrupts on RZ/A1, with configurable sense select. NMI edge select is not yet supported. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-29dt-bindings: interrupt-controller: Add Renesas RZ/A1 Interrupt ControllerGeert Uytterhoeven1-0/+43
Add DT bindings for the Renesas RZ/A1 Interrupt Controller. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-29gpio: mb86s7x: Enable ACPI supportArd Biesheuvel1-7/+44
Make the mb86s7x GPIO block discoverable via ACPI. In addition, add support for ACPI GPIO interrupts routed via platform interrupts, by wiring the two together via the to_irq() gpiochip callback. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-28genirq/irqdomain: Remove WARN_ON() on out-of-memory conditionGeert Uytterhoeven1-1/+1
There is no need to print a backtrace when memory allocation fails, as the memory allocation core already takes care of that. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/20190527115742.2693-1-geert+renesas@glider.be
2019-05-28irqchip/exiu: Implement ACPI supportArd Biesheuvel1-8/+68
Expose the existing EXIU hierarchical irqchip domain code to permit the interrupt controller to be used as the irqchip component of a GPIO controller on ACPI systems, or as the target of ordinary interrupt resources. Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-28irqchip/exiu: Preparatory refactor for ACPI supportArd Biesheuvel1-23/+43
In preparation of adding support for EXIU controller devices described via ACPI, split the DT init function in a DT specific and a generic part, where the latter will be reused for ACPI support later. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-28acpi/irq: Implement helper to create hierachical domainsArd Biesheuvel2-0/+33
ACPI permits arbitrary producer->consumer interrupt links to be described in AML, which means a topology such as the following is perfectly legal: Device (EXIU) { Name (_HID, "SCX0008") Name (_UID, Zero) Name (_CRS, ResourceTemplate () { ... }) } Device (GPIO) { Name (_HID, "SCX0007") Name (_UID, Zero) Name (_CRS, ResourceTemplate () { Memory32Fixed (ReadWrite, SYNQUACER_GPIO_BASE, SYNQUACER_GPIO_SIZE) Interrupt (ResourceConsumer, Edge, ActiveHigh, ExclusiveAndWake, 0, "\\_SB.EXIU") { 7, } }) ... } The EXIU in this example is the external interrupt unit as can be found on Socionext SynQuacer based platforms, which converts a block of 32 SPIs from arbitrary polarity/trigger into level-high, with a separate set of config/mask/unmask/clear controls. The existing DT based driver in drivers/irqchip/irq-sni-exiu.c models this as a hierarchical domain stacked on top of the GIC's irqdomain. Since the GIC is modeled as a DT node as well, obtaining a reference to this irqdomain is easily done by going through the parent link. On ACPI systems, however, the GIC is not modeled as an object in the namespace, and so device objects cannot refer to it directly. So in order to obtain the irqdomain reference when driving the EXIU in ACPI mode, we need a helper that implicitly grabs the default domain as the parent of the hierarchy for interrupts allocated out of the global GSI pool. Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-05-27Linux 5.2-rc2Linus Torvalds1-2/+2
2019-05-26Merge tag 'trace-v5.2-rc1-2' of ↵Linus Torvalds3-10/+20
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing warning fix from Steven Rostedt: "Make the GCC 9 warning for sub struct memset go away. GCC 9 now warns about calling memset() on partial structures when it goes across multiple fields. This adds a helper for the place in tracing that does this type of clearing of a structure" * tag 'trace-v5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Silence GCC 9 array bounds warning
2019-05-26Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds44-303/+399
Pull KVM fixes from Paolo Bonzini: "The usual smattering of fixes and tunings that came in too late for the merge window, but should not wait four months before they appear in a release. I also travelled a bit more than usual in the first part of May, which didn't help with picking up patches and reports promptly" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (33 commits) KVM: x86: fix return value for reserved EFER tools/kvm_stat: fix fields filter for child events KVM: selftests: Wrap vcpu_nested_state_get/set functions with x86 guard kvm: selftests: aarch64: compile with warnings on kvm: selftests: aarch64: fix default vm mode kvm: selftests: aarch64: dirty_log_test: fix unaligned memslot size KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION KVM: x86/pmu: do not mask the value that is written to fixed PMUs KVM: x86/pmu: mask the result of rdpmc according to the width of the counters x86/kvm/pmu: Set AMD's virt PMU version to 1 KVM: x86: do not spam dmesg with VMCS/VMCB dumps kvm: Check irqchip mode before assign irqfd kvm: svm/avic: fix off-by-one in checking host APIC ID KVM: selftests: do not blindly clobber registers in guest asm KVM: selftests: Remove duplicated TEST_ASSERT in hyperv_cpuid.c KVM: LAPIC: Expose per-vCPU timer_advance_ns to userspace KVM: LAPIC: Fix lapic_timer_advance_ns parameter overflow kvm: vmx: Fix -Wmissing-prototypes warnings KVM: nVMX: Fix using __this_cpu_read() in preemptible context kvm: fix compilation on s390 ...
2019-05-26Merge tag 'random_for_linus_stable' of ↵Linus Torvalds1-3/+13
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random Pull /dev/random fix from Ted Ts'o: "Fix a soft lockup regression when reading from /dev/random in early boot" * tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: random: fix soft lockup when trying to read from an uninitialized blocking pool
2019-05-26random: fix soft lockup when trying to read from an uninitialized blocking poolTheodore Ts'o1-3/+13
Fixes: eb9d1bf079bb: "random: only read from /dev/random after its pool has received 128 bits" Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-05-26tracing: Silence GCC 9 array bounds warningMiguel Ojeda3-10/+20
Starting with GCC 9, -Warray-bounds detects cases when memset is called starting on a member of a struct but the size to be cleared ends up writing over further members. Such a call happens in the trace code to clear, at once, all members after and including `seq` on struct trace_iterator: In function 'memset', inlined from 'ftrace_dump' at kernel/trace/trace.c:8914:3: ./include/linux/string.h:344:9: warning: '__builtin_memset' offset [8505, 8560] from the object at 'iter' is out of the bounds of referenced subobject 'seq' with type 'struct trace_seq' at offset 4368 [-Warray-bounds] 344 | return __builtin_memset(p, c, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In order to avoid GCC complaining about it, we compute the address ourselves by adding the offsetof distance instead of referring directly to the member. Since there are two places doing this clear (trace.c and trace_kdb.c), take the chance to move the workaround into a single place in the internal header. Link: http://lkml.kernel.org/r/20190523124535.GA12931@gmail.com Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> [ Removed unnecessary parenthesis around "iter" ] Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-05-26Merge tag 'ext4_for_linus_stable' of ↵Linus Torvalds3-18/+19
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Bug fixes (including a regression fix) for ext4" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix dcache lookup of !casefolded directories ext4: do not delete unlinked inode from orphan list on failed truncate ext4: wait for outstanding dio during truncate in nojournal mode ext4: don't perform block validity checks on the journal inode
2019-05-25Merge tag 'libnvdimm-fixes-5.2-rc2' of ↵Linus Torvalds10-43/+129
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: - Fix a regression that disabled device-mapper dax support - Remove unnecessary hardened-user-copy overhead (>30%) for dax read(2)/write(2). - Fix some compilation warnings. * tag 'libnvdimm-fixes-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: libnvdimm/pmem: Bypass CONFIG_HARDENED_USERCOPY overhead dax: Arrange for dax_supported check to span multiple devices libnvdimm: Fix compilation warnings with W=1
2019-05-25Merge tag 'trace-v5.2-rc1' of ↵Linus Torvalds2-3/+11
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fixes from Steven Rostedt: "Tom Zanussi sent me some small fixes and cleanups to the histogram code and I forgot to incorporate them. I also added a small clean up patch that was sent to me a while ago and I just noticed it" * tag 'trace-v5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: kernel/trace/trace.h: Remove duplicate header of trace_seq.h tracing: Add a check_val() check before updating cond_snapshot() track_val tracing: Check keys for variable references in expressions too tracing: Prevent hist_field_var_ref() from accessing NULL tracing_map_elts
2019-05-25ext4: fix dcache lookup of !casefolded directoriesGabriel Krisman Bertazi1-1/+1
Found by visual inspection, this wasn't caught by my xfstest, since it's effect is ignoring positive dentries in the cache the fallback just goes to the disk. it was introduced in the last iteration of the case-insensitive patch. d_compare should return 0 when the entries match, so make sure we are correctly comparing the entire string if the encoding feature is set and we are on a case-INsensitive directory. Fixes: b886ee3e778e ("ext4: Support case-insensitive file name lookups") Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-05-25Merge tag 'scsi-fixes' of ↵Linus Torvalds11-226/+189
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is the same set of patches sent in the merge window as the final pull except that Martin's read only rework is replaced with a simple revert of the original change that caused the regression. Everything else is an obvious fix or small cleanup" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: Revert "scsi: sd: Keep disk read-only when re-reading partition" scsi: bnx2fc: fix incorrect cast to u64 on shift operation scsi: smartpqi: Reporting unhandled SCSI errors scsi: myrs: Fix uninitialized variable scsi: lpfc: Update lpfc version to 12.2.0.2 scsi: lpfc: add check for loss of ndlp when sending RRQ scsi: lpfc: correct rcu unlock issue in lpfc_nvme_info_show scsi: lpfc: resolve lockdep warnings scsi: qedi: remove set but not used variables 'cdev' and 'udev' scsi: qedi: remove memset/memcpy to nfunc and use func instead scsi: qla2xxx: Add cleanup for PCI EEH recovery