1. 31 Oct, 2016 1 commit
    • Rafael J. Wysocki's avatar
      driver core: Functional dependencies tracking support · 9ed98953
      Rafael J. Wysocki authored
      Currently, there is a problem with taking functional dependencies
      between devices into account.
      
      What I mean by a "functional dependency" is when the driver of device
      B needs device A to be functional and (generally) its driver to be
      present in order to work properly.  This has certain consequences
      for power management (suspend/resume and runtime PM ordering) and
      shutdown ordering of these devices.  In general, it also implies that
      the driver of A needs to be working for B to be probed successfully
      and it cannot be unbound from the device before the B's driver.
      
      Support for representing those functional dependencies between
      devices is added here to allow the driver core to track them and act
      on them in certain cases where applicable.
      
      The argument for doing that in the driver core is that there are
      quite a few distinct use cases involving device dependencies, they
      are relatively hard to get right in a driver (if one wants to
      address all of them properly) and it only gets worse if multiplied
      by the number of drivers potentially needing to do it.  Morever, at
      least one case (asynchronous system suspend/resume) cannot be handled
      in a single driver at all, because it requires the driver of A to
      wait for B to suspend (during system suspend) and the driver of B to
      wait for A to resume (during system resume).
      
      For this reason, represent dependencies between devices as "links",
      with the help of struct device_link objects each containing pointers
      to the "linked" devices, a list node for each of them, status
      information, flags, and an RCU head for synchronization.
      
      Also add two new list heads, representing the lists of links to the
      devices that depend on the given one (consumers) and to the devices
      depended on by it (suppliers), and a "driver presence status" field
      (needed for figuring out initial states of device links) to struct
      device.
      
      The entire data structure consisting of all of the lists of link
      objects for all devices is protected by a mutex (for link object
      addition/removal and for list walks during device driver probing
      and removal) and by SRCU (for list walking in other case that will
      be introduced by subsequent change sets).  If CONFIG_SRCU is not
      selected, however, an rwsem is used for protecting the entire data
      structure.
      
      In addition, each link object has an internal status field whose
      value reflects whether or not drivers are bound to the devices
      pointed to by the link or probing/removal of their drivers is in
      progress etc.  That field is only modified under the device links
      mutex, but it may be read outside of it in some cases (introduced by
      subsequent change sets), so modifications of it are annotated with
      WRITE_ONCE().
      
      New links are added by calling device_link_add() which takes three
      arguments: pointers to the devices in question and flags.  In
      particular, if DL_FLAG_STATELESS is set in the flags, the link status
      is not to be taken into account for this link and the driver core
      will not manage it.  In turn, if DL_FLAG_AUTOREMOVE is set in the
      flags, the driver core will remove the link automatically when the
      consumer device driver unbinds from it.
      
      One of the actions carried out by device_link_add() is to reorder
      the lists used for device shutdown and system suspend/resume to
      put the consumer device along with all of its children and all of
      its consumers (and so on, recursively) to the ends of those lists
      in order to ensure the right ordering between all of the supplier
      and consumer devices.
      
      For this reason, it is not possible to create a link between two
      devices if the would-be supplier device already depends on the
      would-be consumer device as either a direct descendant of it or a
      consumer of one of its direct descendants or one of its consumers
      and so on.
      
      There are two types of link objects, persistent and non-persistent.
      The persistent ones stay around until one of the target devices is
      deleted, while the non-persistent ones are removed automatically when
      the consumer driver unbinds from its device (ie. they are assumed to
      be valid only as long as the consumer device has a driver bound to
      it).  Persistent links are created by default and non-persistent
      links are created when the DL_FLAG_AUTOREMOVE flag is passed
      to device_link_add().
      
      Both persistent and non-persistent device links can be deleted
      with an explicit call to device_link_del().
      
      Links created without the DL_FLAG_STATELESS flag set are managed
      by the driver core using a simple state machine.  There are 5 states
      each link can be in: DORMANT (unused), AVAILABLE (the supplier driver
      is present and functional), CONSUMER_PROBE (the consumer driver is
      probing), ACTIVE (both supplier and consumer drivers are present and
      functional), and SUPPLIER_UNBIND (the supplier driver is unbinding).
      The driver core updates the link state automatically depending on
      what happens to the linked devices and for each link state specific
      actions are taken in addition to that.
      
      For example, if the supplier driver unbinds from its device, the
      driver core will also unbind the drivers of all of its consumers
      automatically under the assumption that they cannot function
      properly without the supplier.  Analogously, the driver core will
      only allow the consumer driver to bind to its device if the
      supplier driver is present and functional (ie. the link is in
      the AVAILABLE state).  If that's not the case, it will rely on
      the existing deferred probing mechanism to wait for the supplier
      driver to become available.
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      9ed98953
  2. 30 Oct, 2016 1 commit
  3. 29 Oct, 2016 17 commits
    • Linus Torvalds's avatar
      Linux 4.9-rc3 · a909d3e6
      Linus Torvalds authored
      a909d3e6
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 42fd2b50
      Linus Torvalds authored
      Pull x86 bugfix from Thomas Gleixner:
       "A single bugfix for the recent changes related to registering the boot
        cpu when this has not happened before prefill_possible_map().
      
        The main problem with this change got fixed already, but we missed the
        case where the local APIC is not yet mapped, when prefill_possible_map()
        is invoked, so the registration of the boot cpu which has the APIC bit
        set in CPUID will explode.
      
        I should have seen that issue earlier, but all I can do now is feeling
        embarassed"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/smpboot: Init apic mapping before usage
      42fd2b50
    • Linus Torvalds's avatar
      Merge tag 'upstream-4.9-rc3' of git://git.infradead.org/linux-ubifs · efa56375
      Linus Torvalds authored
      Pull ubi/ubifs fixes from Richard Weinberger:
       "This contains fixes for issues in both UBI and UBIFS:
      
         - A regression wrt overlayfs, introduced in -rc2.
         - An UBI issue, found by Dan Carpenter's static checker"
      
      * tag 'upstream-4.9-rc3' of git://git.infradead.org/linux-ubifs:
        ubifs: Fix regression in ubifs_readdir()
        ubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap()
      efa56375
    • Linus Torvalds's avatar
      Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 2674235f
      Linus Torvalds authored
      Pull ARM SoC fixes from Olof Johansson:
       "We haven't seen a whole lot of fixes for the first two weeks since the
        merge window, but here is the batch that we have at the moment.
      
        Nothing sticks out as particularly bad or scary, it's mostly a handful
        of smaller fixes to several platforms. The Uniphier reset controller
        changes could probably have been delayed to 4.10, but they're not
        scary and just plumbing up driver changes that went in during the
        merge window.
      
        We're also adding another maintainer to Marvell Berlin platforms, to
        help out when Sebastian is too busy. Yay teamwork!"
      
      * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        ARM: imx: mach-imx6q: Fix the PHY ID mask for AR8031
        ARM: dts: vf610: fix IRQ flag of global timer
        ARM: imx: gpc: Fix the imx_gpc_genpd_init() error path
        ARM: imx: gpc: Initialize all power domains
        arm64: dts: Updated NAND DT properties for NS2 SVK
        arm64: dts: uniphier: change MIO node to SD control node
        ARM: dts: uniphier: change MIO node to SD control node
        reset: uniphier: rename MIO reset to SD reset for Pro5, PXs2, LD20 SoCs
        arm64: uniphier: select ARCH_HAS_RESET_CONTROLLER
        ARM: uniphier: select ARCH_HAS_RESET_CONTROLLER
        arm64: dts: Add timer erratum property for LS2080A and LS1043A
        arm64: dts: rockchip: remove the abuse of keep-power-in-suspend
        ARM: multi_v7_defconfig: Enable Intel e1000e driver
        MAINTAINERS: add myself as Marvell berlin SoC maintainer
        bus: qcom-ebi2: depend on ARCH_QCOM or COMPILE_TEST
        ARM: dts: fix the SD card on the Snowball
        arm64: dts: rockchip: remove always-on and boot-on from vcc_sd
        arm64: dts: marvell: fix clocksource for CP110 master SPI0
        ARM: mvebu: Select corediv clk for all mvebu v7 SoC
      2674235f
    • Linus Torvalds's avatar
      Merge tag 'char-misc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 2a290036
      Linus Torvalds authored
      Pull char/misc driver fixes from Greg KH:
       "Here are a few small char/misc driver fixes for reported issues.
      
        The "biggest" are two binder fixes for reported issues that have been
        shipping in Android phones for a while now, the others are various
        fixes for reported problems.
      
        And there's a MAINTAINERS update for good measure.
      
        All have been in linux-next with no reported issues"
      
      * tag 'char-misc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        MAINTAINERS: Add entry for genwqe driver
        VMCI: Doorbell create and destroy fixes
        GenWQE: Fix bad page access during abort of resource allocation
        vme: vme_get_size potentially returning incorrect value on failure
        extcon: qcom-spmi-misc: Sync the extcon state on interrupt
        hv: do not lose pending heartbeat vmbus packets
        mei: txe: don't clean an unprocessed interrupt cause.
        ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct
        ANDROID: binder: Add strong ref checks
      2a290036
    • Olof Johansson's avatar
      Merge tag 'v4.9-rockchip-dts64-fixes1' of... · b70e8beb
      Olof Johansson authored
      Merge tag 'v4.9-rockchip-dts64-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes
      
      Correct regulator handling on Rockchip arm64 boards to make
      bind/unbind calls work correctly and remove a sdio-only
      property from non-sdio mmc hosts, that accidentially was
      added there.
      
      * tag 'v4.9-rockchip-dts64-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
        arm64: dts: rockchip: remove the abuse of keep-power-in-suspend
        arm64: dts: rockchip: remove always-on and boot-on from vcc_sd
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      b70e8beb
    • Olof Johansson's avatar
      Merge tag 'arm-soc/for-4.9/devicetree-arm64-fixes' of... · bb70e53e
      Olof Johansson authored
      Merge tag 'arm-soc/for-4.9/devicetree-arm64-fixes' of http://github.com/Broadcom/stblinux into fixes
      
      This pull request contains a single fix for Broadcom ARM64-based SoCs:
      
      - Ray adds the required bus width and OOB sector size properties to the
        Northstar 2 SVK reference board in order for the NAND controller to work
        properly
      
      * tag 'arm-soc/for-4.9/devicetree-arm64-fixes' of http://github.com/Broadcom/stblinux:
        arm64: dts: Updated NAND DT properties for NS2 SVK
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      bb70e53e
    • Olof Johansson's avatar
      Merge tag 'imx-fixes-4.9' of... · fbaff059
      Olof Johansson authored
      Merge tag 'imx-fixes-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
      
      The i.MX fixes for 4.9:
       - A couple of patches from Fabio to fix the GPC power domain regression
         which is caused by PM Domain core change 0159ec67
         ("PM / Domains: Verify the PM domain is present when adding a
         provider"), and a related kernel crash seen with multi_v7_defconfig
         build.
       - Correct the PHY ID mask for AR8031 to match phy driver code.
       - Apply new added timer erratum A008585 for LS1043A and LS2080A SoC.
       - Correct vf610 global timer IRQ flag to avoid warning from gic driver
         after commit 992345a5 ("irqchip/gic: WARN if setting the
         interrupt type for a PPI fails").
      
      * tag 'imx-fixes-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
        ARM: imx: mach-imx6q: Fix the PHY ID mask for AR8031
        ARM: dts: vf610: fix IRQ flag of global timer
        ARM: imx: gpc: Fix the imx_gpc_genpd_init() error path
        ARM: imx: gpc: Initialize all power domains
        arm64: dts: Add timer erratum property for LS2080A and LS1043A
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      fbaff059
    • Olof Johansson's avatar
      Merge tag 'uniphier-fixes-v4.9' of... · 10e15a63
      Olof Johansson authored
      Merge tag 'uniphier-fixes-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier into fixes
      
      UniPhier ARM SoC fixes for v4.9
      
      - Add "select ARCH_HAS_RESET_CONTROLLER" in Kconfig
      - Rename wrongly-named mioctrl to sdctrl
      
      * tag 'uniphier-fixes-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier:
        arm64: dts: uniphier: change MIO node to SD control node
        ARM: dts: uniphier: change MIO node to SD control node
        reset: uniphier: rename MIO reset to SD reset for Pro5, PXs2, LD20 SoCs
        arm64: uniphier: select ARCH_HAS_RESET_CONTROLLER
        ARM: uniphier: select ARCH_HAS_RESET_CONTROLLER
      Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
      10e15a63
    • Linus Torvalds's avatar
      Merge tag 'driver-core-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core · c636e176
      Linus Torvalds authored
      Pull driver core fixes from Greg KH:
       "Here are two small driver core / kernfs fixes for 4.9-rc3.
      
        One makes the Kconfig entry for DEBUG_TEST_DRIVER_REMOVE a bit more
        explicit that this is a crazy thing to enable for a distro kernel
        (thanks for trying Fedora!), the other resolves an issue with vim
        opening kernfs files (sysfs, configfs, etc.)
      
        Both have been in linux-next with no reported issues"
      
      * tag 'driver-core-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
        driver core: Make Kconfig text for DEBUG_TEST_DRIVER_REMOVE stronger
        kernfs: Add noop_fsync to supported kernfs_file_fops
      c636e176
    • Linus Torvalds's avatar
      Merge tag 'staging-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · db4a57e6
      Linus Torvalds authored
      Pull staging and IIO driver fixes from Greg KH:
       "Here are some small staging and iio driver fixes for reported issues
        for 4.9-rc3. Nothing major, the "largest" being a lustre fix for a
        sysfs file that was obviously wrong, and had never been tested, so it
        was moved to debugfs as that is where it belongs. The others are small
        bug fixes for reported issues with various staging or iio drivers.
      
        All have been in linux-next for a while with no reported issues"
      
      * tag 'staging-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        greybus: fix a leak on error in gb_module_create()
        greybus: es2: fix error return code in ap_probe()
        greybus: arche-platform: Add missing of_node_put() in arche_platform_change_state()
        staging: android: ion: Fix error handling in ion_query_heaps()
        iio: accel: sca3000_core: avoid potentially uninitialized variable
        iio:chemical:atlas-ph-sensor: Fix use of 32 bit int to hold 16 bit big endian value
        staging/lustre/llite: Move unstable_stats from sysfs to debugfs
        Staging: wilc1000: Fix kernel Oops on opening the device
        staging: android/ion: testing the wrong variable
        Staging: greybus: uart: Use gbphy_dev->dev instead of bundle->dev
        Staging: greybus: gpio: Use gbphy_dev->dev instead of bundle->dev
        iio: adc: ti-adc081c: Select IIO_TRIGGERED_BUFFER to prevent build errors
        iio: maxim_thermocouple: Align 16 bit big endian value of raw reads
      db4a57e6
    • Linus Torvalds's avatar
      Merge tag 'tty-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 37cc6bb8
      Linus Torvalds authored
      Pull tty/serial driver fixes from Greg KH:
       "Here are a number of small tty and serial driver fixes for reported
        issues for 4.9-rc3. Nothing major, but they do resolve a bunch of
        problems with the tty core changes that are in 4.9-rc1, and finally
        the atmel serial driver is back working properly.
      
        All have been in linux-next with no reported issues"
      
      * tag 'tty-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        tty: serial_core: fix NULL struct tty pointer access in uart_write_wakeup
        tty: serial_core: Fix serial console crash on port shutdown
        tty/serial: at91: fix hardware handshake on Atmel platforms
        vt: clear selection before resizing
        sc16is7xx: always write state when configuring GPIO as an output
        sh-sci: document R8A7743/5 support
        tty: serial: 8250: 8250_core: NXP SC16C2552 workaround
        tty: limit terminal size to 4M chars
        tty: serial: fsl_lpuart: Fix Tx DMA edge case
        serial: 8250_lpss: enable MSI for sure
        serial: core: fix console problems on uart_close
        serial: 8250_uniphier: fix clearing divisor latch access bit
        serial: 8250_uniphier: fix more unterminated string
        serial: pch_uart: add terminate entry for dmi_system_id tables
        devicetree: bindings: uart: Add new compatible string for ZynqMP
        serial: xuartps: Add new compatible string for ZynqMP
        serial: SERIAL_STM32 should depend on HAS_DMA
        serial: stm32: Fix comparisons with undefined register
        tty: vt, fix bogus division in csi_J
      37cc6bb8
    • Linus Torvalds's avatar
      Merge tag 'usb-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 9af6f26a
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are a number of small USB driver fixes for 4.9-rc3.
      
        There is the usual number of gadget and xhci patches in here to
        resolved reported issues, as well as some usb-serial driver fixes and
        new device ids.
      
        All have been in linux-next with no reported issues"
      
      * tag 'usb-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
        usb: chipidea: host: fix NULL ptr dereference during shutdown
        usb: renesas_usbhs: add wait after initialization for R-Car Gen3
        usb: increase ohci watchdog delay to 275 msec
        usb: musb: Call pm_runtime from musb_gadget_queue
        usb: musb: Fix hardirq-safe hardirq-unsafe lock order error
        usb: ehci-platform: increase EHCI_MAX_RSTS to 4
        usb: ohci-at91: Set RemoteWakeupConnected bit explicitly.
        USB: serial: fix potential NULL-dereference at probe
        xhci: use default USB_RESUME_TIMEOUT when resuming ports.
        xhci: workaround for hosts missing CAS bit
        xhci: add restart quirk for Intel Wildcatpoint PCH
        USB: serial: cp210x: fix tiocmget error handling
        wusb: fix error return code in wusb_prf()
        Revert "Documentation: devicetree: dwc2: Deprecate g-tx-fifo-size"
        Revert "usb: dwc2: gadget: fix TX FIFO size and address initialization"
        Revert "usb: dwc2: gadget: change variable name to more meaningful"
        USB: serial: ftdi_sio: add support for Infineon TriBoard TC2X7
        wusb: Stop using the stack for sg crypto scratch space
        usb: dwc3: Fix size used in dma_free_coherent()
        usb: gadget: f_fs: stop sleeping in ffs_func_eps_disable
        ...
      9af6f26a
    • Thomas Gleixner's avatar
      x86/smpboot: Init apic mapping before usage · 1e90a13d
      Thomas Gleixner authored
      The recent changes, which forced the registration of the boot cpu on UP
      systems, which do not have ACPI tables, have been fixed for systems w/o
      local APIC, but left a wreckage for systems which have neither ACPI nor
      mptables, but the CPU has an APIC, e.g. virtualbox.
      
      The boot process crashes in prefill_possible_map() as it wants to register
      the boot cpu, which needs to access the local apic, but the local APIC is
      not yet mapped.
      
      There is no reason why init_apic_mapping() can't be invoked before
      prefill_possible_map(). So instead of playing another silly early mapping
      game, as the ACPI/mptables code does, we just move init_apic_mapping()
      before the call to prefill_possible_map().
      
      In hindsight, I should have noticed that combination earlier.
      
      Sorry for the churn (also in stable)!
      
      Fixes: ff856051 ("x86/boot/smp: Don't try to poke disabled/non-existent APIC")
      Reported-and-debugged-by: default avatarMichal Necasek <michal.necasek@oracle.com>
      Reported-and-tested-by: default avatarWolfgang Bauer <wbauer@tmo.at>
      Cc: prarit@redhat.com
      Cc: ville.syrjala@linux.intel.com
      Cc: michael.thayer@oracle.com
      Cc: knut.osmundsen@oracle.com
      Cc: frank.mehnert@oracle.com
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: stable@vger.kernel.org
      Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1610282114380.5053@nanosSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      1e90a13d
    • Linus Torvalds's avatar
      Merge tag 'acpi-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · c067affc
      Linus Torvalds authored
      Pull ACPI fixes from Rafael Wysocki:
       "These fix recent ACPICA regressions, an older PCI IRQ management
        regression, and an incorrect return value of a function in the APEI
        code.
      
        Specifics:
      
         - Fix three ACPICA issues related to the interpreter locking and
           introduced by recent changes in that area (Lv Zheng).
      
         - Fix a PCI IRQ management regression introduced during the 4.7 cycle
           and related to the configuration of shared IRQs on systems with an
           ISA bus (Sinan Kaya).
      
         - Fix up a return value of one function in the APEI code (Punit
           Agrawal)"
      
      * tag 'acpi-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        ACPICA: Dispatcher: Fix interpreter locking around acpi_ev_initialize_region()
        ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method()
        ACPICA: Dispatcher: Fix order issue of method termination
        ACPI / APEI: Fix incorrect return value of ghes_proc()
        ACPI/PCI: pci_link: Include PIRQ_PENALTY_PCI_USING for ISA IRQs
        ACPI/PCI: pci_link: penalize SCI correctly
        ACPI/PCI/IRQ: assign ISA IRQ directly during early boot stages
      c067affc
    • Linus Torvalds's avatar
      Merge tag 'pm-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · b546e0c2
      Linus Torvalds authored
      Pull power management fixes from Rafael Wysocki:
       "These fix two intel_pstate issues related to the way it works when the
        scaling_governor sysfs attribute is set to "performance" and fix up
        messages in the system suspend core code.
      
        Specifics:
      
         - Fix a missing KERN_CONT in a system suspend message by converting
           the affected code to using pr_info() and pr_cont() instead of the
           "raw" printk() (Jon Hunter).
      
         - Make intel_pstate set the CPU P-state from its .set_policy()
           callback when the scaling_governor sysfs attribute is set to
           "performance" so that it interacts with NOHZ_FULL more predictably
           which was the case before 4.7 (Rafael Wysocki).
      
         - Make intel_pstate always request the maximum allowed P-state when
           the scaling_governor sysfs attribute is set to "performance" to
           prevent it from effectively ingoring that setting is some
           situations (Rafael Wysocki)"
      
      * tag 'pm-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq: intel_pstate: Always set max P-state in performance mode
        PM / suspend: Fix missing KERN_CONT for suspend message
        cpufreq: intel_pstate: Set P-state upfront in performance mode
      b546e0c2
    • Linus Torvalds's avatar
      Merge tag 'arc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc · 1308fd75
      Linus Torvalds authored
      Pull ARC updates from Vineet Gupta:
      
       - support IDU intc for UP builds
      
       - support gz, lzma compressed uImage [Daniel Mentz]
      
       - adjust /proc/cpuinfo for non-continuous cpu ids [Noam Camus]
      
       - syscall for userspace cmpxchg assist for configs lacking hardware atomics
      
       - rework of boot log printing mainly for identifying older arc700 cores
      
       - retiring some old code, build toggles
      
      * tag 'arc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
        ARC: module: print pretty section names
        ARC: module: elide loop to save reference to .eh_frame
        ARC: mm: retire ARC_DBG_TLB_MISS_COUNT...
        ARC: build: retire old toggles
        ARC: boot log: refactor cpu name/release printing
        ARC: boot log: remove awkward space comma from MMU line
        ARC: boot log: don't assume SWAPE instruction support
        ARC: boot log: refactor printing abt features not captured in BCRs
        ARCv2: boot log: print IOC exists as well as enabled status
        ARCv2: IOC: use @ioc_enable not @ioc_exist where intended
        ARC: syscall for userspace cmpxchg assist
        ARC: fix build warning in elf.h
        ARC: Adjust cpuinfo for non-continuous cpu ids
        ARC: [build] Support gz, lzma compressed uImage
        ARCv2: intc: untangle SMP, MCIP and IDU
      1308fd75
  4. 28 Oct, 2016 21 commits