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  1. Nov 19, 2013
  2. Nov 16, 2013
  3. Nov 15, 2013
    • Rafael J. Wysocki's avatar
      PM / Hibernate: Do not crash kernel in free_basic_memory_bitmaps() · 6a0c7cd3
      Rafael J. Wysocki authored
      I have received a report about the BUG_ON() in free_basic_memory_bitmaps()
      triggering mysteriously during an aborted s2disk hibernation attempt.
      The only way I can explain that is that /dev/snapshot was first
      opened for writing (resume mode), then closed and then opened again
      for reading and closed again without freezing tasks.  In that case
      the first invocation of snapshot_open() would set the free_bitmaps
      flag in snapshot_state, which is a static variable.  That flag
      wouldn't be cleared later and the second invocation of snapshot_open()
      would just leave it like that, so the subsequent snapshot_release()
      would see data->frozen set and free_basic_memory_bitmaps() would be
      called unnecessarily.
      
      To prevent that from happening clear data->free_bitmaps in
      snapshot_open() when the file is being opened for reading (hibernate
      mode).
      
      In addition to that, replace the BUG_ON() in free_basic_memory_bitmaps()
      with a WARN_ON() as the kernel can continue just fine if the condition
      checked by that macro occurs.
      
      Fixes: aab17289
      
       (PM / hibernate: Fix user space driven resume regression)
      Reported-by: default avatarOliver Lorenz <olli@olorenz.org>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Cc: 3.12+ <stable@vger.kernel.org> # 3.12+
      6a0c7cd3
    • Lan Tianyu's avatar
      ACPI / AC: Remove struct acpi_device pointer from struct acpi_ac · 86b0cc12
      Lan Tianyu authored
      
      
      Now the pointer of struct acpi_device can be got by
      ACPI_COMPANION(struct acpi_ac->pdev->dev). So the pointer
      is not necessary and remove it.
      
      Signed-off-by: default avatarLan Tianyu <tianyu.lan@intel.com>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      86b0cc12
    • Jarkko Nikula's avatar
      spi: Use stable dev_name for ACPI enumerated SPI slaves · e13ac47b
      Jarkko Nikula authored
      
      
      Current spi bus_num.chip_select "spix.y" based device naming scheme may not
      be stable enough to be used in name based matching, for instance within
      ALSA SoC subsystem.
      
      This can be problem in PC kind of platforms if there are changes in SPI bus
      configuration, amount of busses or probe order.
      
      This patch addresses the problem by using the ACPI device name with
      "spi-" prefix for ACPI enumerated SPI slave. For them device name
      "spix.y" becomes "spi-INTABCD:ij".
      
      Signed-off-by: default avatarJarkko Nikula <jarkko.nikula@linux.intel.com>
      Acked-by: default avatarMark Brown <broonie@linaro.org>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      e13ac47b
    • Jarkko Nikula's avatar
      i2c: Use stable dev_name for ACPI enumerated I2C slaves · 70762abb
      Jarkko Nikula authored
      
      
      Current I2C adapter id - client address "x-00yy" based device naming scheme
      is not always stable enough to be used in name based matching, for instance
      within ALSA SoC subsystem.
      
      This is problematic in PC kind of platforms where I2C adapter numbers can
      change due variable amount of bus controllers, probe order, add-on cards or
      just because of BIOS settings.
      
      This patch addresses the problem by using the ACPI device name with
      "i2c-" prefix for ACPI enumerated I2C slaves. For them device name
      "x-00yz" becomes "i2c-INTABCD:ij" after this patch.
      
      Signed-off-by: default avatarJarkko Nikula <jarkko.nikula@linux.intel.com>
      Acked-by: default avatarWolfram Sang <wsa@the-dreams.de>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      70762abb
    • Jarkko Nikula's avatar
      ACPI: Provide acpi_dev_name accessor for struct acpi_device device name · 45c42a7f
      Jarkko Nikula authored
      
      
      struct acpi_device fields are only available when CONFIG_ACPI is set. We may
      find use for dev_name(&adev->dev) in generic code that is build also without
      CONFIG_ACPI is set but currently this requires #ifdef CONFIG_ACPI churn.
      
      Provide here an accessor that returns dev_name of embedded struct device dev
      in struct acpi_device or NULL depending on CONFIG_ACPI setting.
      
      Signed-off-by: default avatarJarkko Nikula <jarkko.nikula@linux.intel.com>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      45c42a7f
    • Rafael J. Wysocki's avatar
      ACPI / bind: Use (put|get)_device() on ACPI device objects too · a104b4d4
      Rafael J. Wysocki authored
      
      
      When associating a "physical" device with an ACPI device object
      acpi_bind_one() only uses get_device() to increment the reference
      counter of the former, but there is no reason not to do that with
      the latter too.  Among other things, that may help to avoid
      use-after-free when an ACPI device object is freed without calling
      acpi_unbind_one() for all "physical" devices associated with it
      (that only can happen in buggy code, but then it's better if the
      kernel doesn't crash as a result of a bug).
      
      For this reason, modify acpi_bind_one() to apply get_device() to
      the ACPI device object too and update acpi_unbind_one() to drop
      that reference using put_device() as appropriate.
      
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Reviewed-by: default avatarLan Tianyu <tianyu.lan@intel.com>
      a104b4d4
    • Rafael J. Wysocki's avatar
      ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro · 3a83f992
      Rafael J. Wysocki authored
      
      
      Since DEVICE_ACPI_HANDLE() is now literally identical to
      ACPI_HANDLE(), replace it with the latter everywhere and drop its
      definition from include/acpi.h.
      
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      3a83f992
    • Rafael J. Wysocki's avatar
      ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node · 7b199811
      Rafael J. Wysocki authored
      
      
      Modify struct acpi_dev_node to contain a pointer to struct acpi_device
      associated with the given device object (that is, its ACPI companion
      device) instead of an ACPI handle corresponding to it.  Introduce two
      new macros for manipulating that pointer in a CONFIG_ACPI-safe way,
      ACPI_COMPANION() and ACPI_COMPANION_SET(), and rework the
      ACPI_HANDLE() macro to take the above changes into account.
      Drop the ACPI_HANDLE_SET() macro entirely and rework its users to
      use ACPI_COMPANION_SET() instead.  For some of them who used to
      pass the result of acpi_get_child() directly to ACPI_HANDLE_SET()
      introduce a helper routine acpi_preset_companion() doing an
      equivalent thing.
      
      The main motivation for doing this is that there are things
      represented by struct acpi_device objects that don't have valid
      ACPI handles (so called fixed ACPI hardware features, such as
      power and sleep buttons) and we would like to create platform
      device objects for them and "glue" them to their ACPI companions
      in the usual way (which currently is impossible due to the
      lack of valid ACPI handles).  However, there are more reasons
      why it may be useful.
      
      First, struct acpi_device pointers allow of much better type checking
      than void pointers which are ACPI handles, so it should be more
      difficult to write buggy code using modified struct acpi_dev_node
      and the new macros.  Second, the change should help to reduce (over
      time) the number of places in which the result of ACPI_HANDLE() is
      passed to acpi_bus_get_device() in order to obtain a pointer to the
      struct acpi_device associated with the given "physical" device,
      because now that pointer is returned by ACPI_COMPANION() directly.
      Finally, the change should make it easier to write generic code that
      will build both for CONFIG_ACPI set and unset without adding explicit
      compiler directives to it.
      
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com> # on Haswell
      Reviewed-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
      Reviewed-by: Aaron Lu <aaron.lu@intel.com> # for ATA and SDIO part
      7b199811
  4. Nov 14, 2013
    • Linus Torvalds's avatar
      Merge tag 'pci-v3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 2f466d33
      Linus Torvalds authored
      Pull PCI changes from Bjorn Helgaas:
       "Resource management
          - Fix host bridge window coalescing (Alexey Neyman)
          - Pass type, width, and prefetchability for window alignment (Wei Yang)
      
        PCI device hotplug
          - Convert acpiphp, acpiphp_ibm to dynamic debug (Lan Tianyu)
      
        Power management
          - Remove pci_pm_complete() (Liu Chuansheng)
      
        MSI
          - Fail initialization if device is not in PCI_D0 (Yijing Wang)
      
        MPS (Max Payload Size)
          - Use pcie_get_mps() and pcie_set_mps() to simplify code (Yijing Wang)
          - Use pcie_set_readrq() to simplify code (Yijing Wang)
          - Use cached pci_dev->pcie_mpss to simplify code (Yijing Wang)
      
        SR-IOV
          - Enable upstream bridges even for VFs on virtual buses (Bjorn Helgaas)
          - Use pci_is_root_bus() to avoid catching virtual buses (Wei Yang)
      
        Virtualization
          - Add x86 MSI masking ops (Konrad Rzeszutek Wilk)
      
        Freescale i.MX6
          - Support i.MX6 PCIe controller (Sean Cross)
          - Increase link startup timeout (Marek Vasut)
          - Probe PCIe in fs_initcall() (Marek Vasut)
          - Fix imprecise abort handler (Tim Harvey)
          - Remove redundant of_match_ptr (Sachin Kamat)
      
        Renesas R-Car
          - Support Gen2 internal PCIe controller (Valentine Barshak)
      
        Samsung Exynos
          - Add MSI support (Jingoo Han)
          - Turn off power when link fails (Jingoo Han)
          - Add Jingoo Han as maintainer (Jingoo Han)
          - Add clk_disable_unprepare() on error path (Wei Yongjun)
          - Remove redundant of_match_ptr (Sachin Kamat)
      
        Synopsys DesignWare
          - Add irq_create_mapping() (Pratyush Anand)
          - Add header guards (Seungwon Jeon)
      
        Miscellaneous
          - Enable native PCIe services by default on non-ACPI (Andrew Murray)
          - Cleanup _OSC usage and messages (Bjorn Helgaas)
          - Remove pcibios_last_bus boot option on non-x86 (Bjorn Helgaas)
          - Convert bus code to use bus_, drv_, and dev_groups (Greg Kroah-Hartman)
          - Remove unused pci_mem_start (Myron Stowe)
          - Make sysfs functions static (Sachin Kamat)
          - Warn on invalid return from driver probe (Stephen M. Cameron)
          - Remove Intel Haswell D3 delays (Todd E Brandt)
          - Call pci_set_master() in core if driver doesn't do it (Yinghai Lu)
          - Use pci_is_pcie() to simplify code (Yijing Wang)
          - Use PCIe capability accessors to simplify code (Yijing Wang)
          - Use cached pci_dev->pcie_cap to simplify code (Yijing Wang)
          - Removed unused "is_pcie" from struct pci_dev (Yijing Wang)
          - Simplify sysfs CPU affinity implementation (Yijing Wang)"
      
      * tag 'pci-v3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (79 commits)
        PCI: Enable upstream bridges even for VFs on virtual buses
        PCI: Add pci_upstream_bridge()
        PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()
        PCI: Warn on driver probe return value greater than zero
        PCI: Drop warning about drivers that don't use pci_set_master()
        PCI: Workaround missing pci_set_master in pci drivers
        powerpc/pci: Use pci_is_pcie() to simplify code [fix]
        PCI: Update pcie_ports 'auto' behavior for non-ACPI platforms
        PCI: imx6: Probe the PCIe in fs_initcall()
        PCI: Add R-Car Gen2 internal PCI support
        PCI: imx6: Remove redundant of_match_ptr
        PCI: Report pci_pme_active() kmalloc failure
        mn10300/PCI: Remove useless pcibios_last_bus
        frv/PCI: Remove pcibios_last_bus
        PCI: imx6: Increase link startup timeout
        PCI: exynos: Remove redundant of_match_ptr
        PCI: imx6: Fix imprecise abort handler
        PCI: Fail MSI/MSI-X initialization if device is not in PCI_D0
        PCI: imx6: Remove redundant dev_err() in imx6_pcie_probe()
        x86/PCI: Coalesce multiple overlapping host bridge windows
        ...
      2f466d33
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · f9300eaa
      Linus Torvalds authored
      Pull ACPI and power management updates from Rafael J Wysocki:
      
       - New power capping framework and the the Intel Running Average Power
         Limit (RAPL) driver using it from Srinivas Pandruvada and Jacob Pan.
      
       - Addition of the in-kernel switching feature to the arm_big_little
         cpufreq driver from Viresh Kumar and Nicolas Pitre.
      
       - cpufreq support for iMac G5 from Aaro Koskinen.
      
       - Baytrail processors support for intel_pstate from Dirk Brandewie.
      
       - cpufreq support for Midway/ECX-2000 from Mark Langsdorf.
      
       - ARM vexpress/TC2 cpufreq support from Sudeep KarkadaNagesha.
      
       - ACPI power management support for the I2C and SPI bus types from Mika
         Westerberg and Lv Zheng.
      
       - cpufreq core fixes and cleanups from Viresh Kumar, Srivatsa S Bhat,
         Stratos Karafotis, Xiaoguang Chen, Lan Tianyu.
      
       - cpufreq drivers updates (mostly fixes and cleanups) from Viresh
         Kumar, Aaro Koskinen, Jungseok Lee, Sudeep KarkadaNagesha, Lukasz
         Majewski, Manish Badarkhe, Hans-Christian Egtvedt, Evgeny Kapaev.
      
       - intel_pstate updates from Dirk Brandewie and Adrian Huang.
      
       - ACPICA update to version 20130927 includig fixes and cleanups and
         some reduction of divergences between the ACPICA code in the kernel
         and ACPICA upstream in order to improve the automatic ACPICA patch
         generation process.  From Bob Moore, Lv Zheng, Tomasz Nowicki, Naresh
         Bhat, Bjorn Helgaas, David E Box.
      
       - ACPI IPMI driver fixes and cleanups from Lv Zheng.
      
       - ACPI hotplug fixes and cleanups from Bjorn Helgaas, Toshi Kani, Zhang
         Yanfei, Rafael J Wysocki.
      
       - Conversion of the ACPI AC driver to the platform bus type and
         multiple driver fixes and cleanups related to ACPI from Zhang Rui.
      
       - ACPI processor driver fixes and cleanups from Hanjun Guo, Jiang Liu,
         Bartlomiej Zolnierkiewicz, Mathieu Rhéaume, Rafael J Wysocki.
      
       - Fixes and cleanups and new blacklist entries related to the ACPI
         video support from Aaron Lu, Felipe Contreras, Lennart Poettering,
         Kirill Tkhai.
      
       - cpuidle core cleanups from Viresh Kumar and Lorenzo Pieralisi.
      
       - cpuidle drivers fixes and cleanups from Daniel Lezcano, Jingoo Han,
         Bartlomiej Zolnierkiewicz, Prarit Bhargava.
      
       - devfreq updates from Sachin Kamat, Dan Carpenter, Manish Badarkhe.
      
       - Operation Performance Points (OPP) core updates from Nishanth Menon.
      
       - Runtime power management core fix from Rafael J Wysocki and update
         from Ulf Hansson.
      
       - Hibernation fixes from Aaron Lu and Rafael J Wysocki.
      
       - Device suspend/resume lockup detection mechanism from Benoit Goby.
      
       - Removal of unused proc directories created for various ACPI drivers
         from Lan Tianyu.
      
       - ACPI LPSS driver fix and new device IDs for the ACPI platform scan
         handler from Heikki Krogerus and Jarkko Nikula.
      
       - New ACPI _OSI blacklist entry for Toshiba NB100 from Levente Kurusa.
      
       - Assorted fixes and cleanups related to ACPI from Andy Shevchenko, Al
         Stone, Bartlomiej Zolnierkiewicz, Colin Ian King, Dan Carpenter,
         Felipe Contreras, Jianguo Wu, Lan Tianyu, Yinghai Lu, Mathias Krause,
         Liu Chuansheng.
      
       - Assorted PM fixes and cleanups from Andy Shevchenko, Thierry Reding,
         Jean-Christophe Plagniol-Villard.
      
      * tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (386 commits)
        cpufreq: conservative: fix requested_freq reduction issue
        ACPI / hotplug: Consolidate deferred execution of ACPI hotplug routines
        PM / runtime: Use pm_runtime_put_sync() in __device_release_driver()
        ACPI / event: remove unneeded NULL pointer check
        Revert "ACPI / video: Ignore BIOS initial backlight value for HP 250 G1"
        ACPI / video: Quirk initial backlight level 0
        ACPI / video: Fix initial level validity test
        intel_pstate: skip the driver if ACPI has power mgmt option
        PM / hibernate: Avoid overflow in hibernate_preallocate_memory()
        ACPI / hotplug: Do not execute "insert in progress" _OST
        ACPI / hotplug: Carry out PCI root eject directly
        ACPI / hotplug: Merge device hot-removal routines
        ACPI / hotplug: Make acpi_bus_hot_remove_device() internal
        ACPI / hotplug: Simplify device ejection routines
        ACPI / hotplug: Fix handle_root_bridge_removal()
        ACPI / hotplug: Refuse to hot-remove all objects with disabled hotplug
        ACPI / scan: Start matching drivers after trying scan handlers
        ACPI: Remove acpi_pci_slot_init() headers from internal.h
        ACPI / blacklist: fix name of ThinkPad Edge E530
        PowerCap: Fix build error with option -Werror=format-security
        ...
      
      Conflicts:
      	arch/arm/mach-omap2/opp.c
      	drivers/Kconfig
      	drivers/spi/spi.c
      f9300eaa
    • Linus Torvalds's avatar
      Merge tag 'dm-3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm · 7f2dc5c4
      Linus Torvalds authored
      Pull device mapper changes from Mike Snitzer:
       "A set of device-mapper changes for 3.13.
      
        Improve reliability of buffer allocations for dm messages with a small
        number of arguments, a couple path group initialization fixes for dm
        multipath, a fix for resizing a dm array, various fixes and
        optimizations for dm cache, a fix for device mapper's Kconfig menu
        indentation.
      
        Features added include:
         - dm crypt support for activating legacy CBC TrueCrypt containers
           (useful for forensics of these old TCRYPT containers)
         - reduced dm-cache memory requirements for each block in the cache
         - basic support for shrinking a dm-cache's cache (fast) device
         - most notably, dm-cache support for managing cache coherency when
           deploying dm-cache with sophisticated origin volumes (that support
           hardware snapshots and/or clustering): these changes come in the
           form of a new passthrough operation mode and a cache block
           invalidation interface"
      
      * tag 'dm-3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (32 commits)
        dm cache: resolve small nits and improve Documentation
        dm cache: add cache block invalidation support
        dm cache: add remove_cblock method to policy interface
        dm cache policy mq: reduce memory requirements
        dm cache metadata: check the metadata version when reading the superblock
        dm cache: add passthrough mode
        dm cache: cache shrinking support
        dm cache: promotion optimisation for writes
        dm cache: be much more aggressive about promoting writes to discarded blocks
        dm cache policy mq: implement writeback_work() and mq_{set,clear}_dirty()
        dm cache: optimize commit_if_needed
        dm space map disk: optimise sm_disk_dec_block
        MAINTAINERS: add reference to device-mapper's linux-dm.git tree
        dm: fix Kconfig menu indentation
        dm: allow remove to be deferred
        dm table: print error on preresume failure
        dm crypt: add TCW IV mode for old CBC TCRYPT containers
        dm crypt: properly handle extra key string in initialization
        dm cache: log error message if dm_kcopyd_copy() fails
        dm cache: use cell_defer() boolean argument consistently
        ...
      7f2dc5c4
    • Linus Torvalds's avatar
      Merge tag 'for-linus-20131112' of git://git.infradead.org/linux-mtd · 82cb6ace
      Linus Torvalds authored
      Pull MTD changes from Brian Norris:
       - Unify some compile-time differences so that we have fewer uses of
         #ifdef CONFIG_OF in atmel_nand
       - Other general cleanups (removing unused functions, options,
         variables, fields; use correct interfaces)
       - Fix BUG() for new odd-sized NAND, which report non-power-of-2
         dimensions via ONFI
       - Miscellaneous driver fixes (SPI NOR flash; BCM47xx NAND flash; etc.)
       - Improve differentiation between SLC and MLC NAND -- this clarifies an
         ABI issue regarding the MTD "type" (in sysfs and in the MEMGETINFO
         ioctl), where the MTD_MLCNANDFLASH type was present but
         inconsistently used
       - Extend GPMI NAND to support multi-chip-select NAND for some platforms
       - Many improvements to the OMAP2/3 NAND driver, including an expanded
         DT binding to bring us closer to mainline support for some OMAP
         systems
       - Fix a deadlock in the error path of the Atmel NAND driver probe
       - Correct the error codes from MTD mmap() to conform to POSIX and the
         Linux Programmer's Manual.  This is an acknowledged change in the MTD
         ABI, but I can't imagine somebody relying on the non-standard -ENOSYS
         error code specifically.  Am I just being unimaginative? :)
       - Fix a few important GPMI NAND bugs (one regression from 3.12 and one
         long-standing race condition)
       - More? Read the log!
      
      * tag 'for-linus-20131112' of git://git.infradead.org/linux-mtd: (98 commits)
        mtd: gpmi: fix the NULL pointer
        mtd: gpmi: fix kernel BUG due to racing DMA operations
        mtd: mtdchar: return expected errors on mmap() call
        mtd: gpmi: only scan two chips for imx6
        mtd: gpmi: Use devm_kzalloc()
        mtd: atmel_nand: fix bug driver will in a dead lock if no nand detected
        mtd: nand: use a local variable to simplify the nand_scan_tail
        mtd: nand: remove deprecated IRQF_DISABLED
        mtd: dataflash: Say if we find a device we don't support
        mtd: nand: omap: fix error return code in omap_nand_probe()
        mtd: nand_bbt: kill NAND_BBT_SCANALLPAGES
        mtd: m25p80: fixup device removal failure path
        mtd: mxc_nand: Include linux/of.h header
        mtd: remove duplicated include from mtdcore.c
        mtd: m25p80: add support for Macronix mx25l3255e
        mtd: nand: omap: remove selection of BCH ecc-scheme via KConfig
        mtd: nand: omap: updated devm_xx for all resource allocation and free calls
        mtd: nand: omap: use drivers/mtd/nand/nand_bch.c wrapper for BCH ECC instead of lib/bch.c
        mtd: nand: omap: clean-up ecc layout for BCH ecc schemes
        mtd: nand: omap2: clean-up BCHx_HW and BCHx_SW ECC configurations in device_probe
        ...
      82cb6ace
    • Linus Torvalds's avatar
      Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 0d522ee7
      Linus Torvalds authored
      Pull first round of SCSI updates from James Bottomley:
       "This patch set is driver updates for qla4xxx, scsi_debug, pm80xx,
        fcoe/libfc, eas2r, lpfc, be2iscsi and megaraid_sas plus some assorted
        bug fixes and cleanups"
      
      * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (106 commits)
        [SCSI] scsi_error: Escalate to LUN reset if abort fails
        [SCSI] Add 'eh_deadline' to limit SCSI EH runtime
        [SCSI] remove check for 'resetting'
        [SCSI] dc395: Move 'last_reset' into internal host structure
        [SCSI] tmscsim: Move 'last_reset' into host structure
        [SCSI] advansys: Remove 'last_reset' references
        [SCSI] dpt_i2o: return SCSI_MLQUEUE_HOST_BUSY when in reset
        [SCSI] dpt_i2o: Remove DPTI_STATE_IOCTL
        [SCSI] megaraid_sas: Fix synchronization problem between sysPD IO path and AEN path
        [SCSI] lpfc: Fix typo on NULL assignment
        [SCSI] scsi_dh_alua: ALUA handler attach should succeed while TPG is transitioning
        [SCSI] scsi_dh_alua: ALUA check sense should retry device internal reset unit attention
        [SCSI] esas2r: Cleanup snprinf formatting of firmware version
        [SCSI] esas2r: Remove superfluous mask of pcie_cap_reg
        [SCSI] esas2r: Fixes for big-endian platforms
        [SCSI] esas2r: Directly call kernel functions for atomic bit operations
        [SCSI] lpfc 8.3.43: Update lpfc version to driver version 8.3.43
        [SCSI] lpfc 8.3.43: Fixed not processing task management IOCB response status
        [SCSI] lpfc 8.3.43: Fixed spinlock hang.
        [SCSI] lpfc 8.3.43: Fixed invalid Total_Data_Placed value received for els and ct command responses
        ...
      0d522ee7
    • Linus Torvalds's avatar
      Merge branch 'for-3.13/drivers' of git://git.kernel.dk/linux-block · 5eea9be8
      Linus Torvalds authored
      Pull block driver updates from Jens Axboe:
       "This is the block driver pull request for 3.13.  As with the core pull
        request just sent out, this was rebased on top of the core branch
        again after the immutable series was pulled.  This also means that
        bcache gets to sit the initial pull over.  I will send a second driver
        pull request in the merge window to get those fixes in, once they have
        been rebased and tested on top of the non-immutable stack.
      
        This pull request contains:
      
         - Add support for the sTec Kronos pci-e flash card from sTec.  Also
           has various cleanups for this driver, from myself, Bart, Mike
           Snizter, and Wei Yongjun.
      
         - Add surprise removal support for the micron mtip32xx driver from
           Micron.
      
         - Floppy documentation fix from Ben Harris.
      
         - debugfs bug fix for pktcdvd from Dan Carpenter.
      
         - Fix for the mtip32xx driver stack usage in the debugfs path,
           dynamically allocating those buffers instead.  From David Milburn.
      
         - Disable cpqarray in Kconfig.  The plan is to remove it on request
           of HP, but lets disable it for a few revisions just to see if
           anyone yells.
      
         - drbd fixes from Lars Ellenberg and Philipp Reisner.
      
         - Elevator switch fix for the s390 block driver from Heiko Carstens.
      
         - loop crash fix on IO to unassigned device from Mikulas Patocka.
      
         - A series of bug fixes for the IBM rsxx pci-e flash driver from
           Philip J Kelleher.
      
         - cciss probe fix from Stephen Cameron.
      
         - Xen block front/back fixes from Roger Pau Monne and Vegard Nossum"
      
      * 'for-3.13/drivers' of git://git.kernel.dk/linux-block: (41 commits)
        floppy: Correct documentation of driver options when used as a module.
        pktcdvd: debugfs functions return NULL on error
        xen-blkfront: restore the non-persistent data path
        skd: fix formatting in skd_s1120.h
        skd: reorder construct/destruct code
        skd: cleanup skd_do_inq_page_da()
        skd: remove SKD_OMIT_FROM_SRC_DIST ifdefs
        skd: remove redundant skdev->pdev assignment from skd_pci_probe()
        skd: use <asm/unaligned.h>
        skd: remove SCSI subsystem specific includes
        skd: register block device only if some devices are present
        skd: fix error messages in skd_init()
        skd: fix error paths in skd_init()
        skd: fix unregister_blkdev() placement
        skd: more removal of bio-based code
        skd: cleanup the skd_*() function block wrapping
        skd: rip out bio path
        skd: fix error return code in skd_pci_probe()
        s390/dasd: hold request queue sysfs lock when calling elevator_init()
        cciss: return 0 from driver probe function on success, not 1
        ...
      5eea9be8
    • Linus Torvalds's avatar
      Merge branch 'for-3.13/core' of git://git.kernel.dk/linux-block · 0910c0bd
      Linus Torvalds authored
      Pull block IO core updates from Jens Axboe:
       "This is the pull request for the core changes in the block layer for
        3.13.  It contains:
      
         - The new blk-mq request interface.
      
           This is a new and more scalable queueing model that marries the
           best part of the request based interface we currently have (which
           is fully featured, but scales poorly) and the bio based "interface"
           which the new drivers for high IOPS devices end up using because
           it's much faster than the request based one.
      
           The bio interface has no block layer support, since it taps into
           the stack much earlier.  This means that drivers end up having to
           implement a lot of functionality on their own, like tagging,
           timeout handling, requeue, etc.  The blk-mq interface provides all
           these.  Some drivers even provide a switch to select bio or rq and
           has code to handle both, since things like merging only works in
           the rq model and hence is faster for some workloads.  This is a
           huge mess.  Conversion of these drivers nets us a substantial code
           reduction.  Initial results on converting SCSI to this model even
           shows an 8x improvement on single queue devices.  So while the
           model was intended to work on the newer multiqueue devices, it has
           substantial improvements for "classic" hardware as well.  This code
           has gone through extensive testing and development, it's now ready
           to go.  A pull request is coming to convert virtio-blk to this
           model will be will be coming as well, with more drivers scheduled
           for 3.14 conversion.
      
         - Two blktrace fixes from Jan and Chen Gang.
      
         - A plug merge fix from Alireza Haghdoost.
      
         - Conversion of __get_cpu_var() from Christoph Lameter.
      
         - Fix for sector_div() with 64-bit divider from Geert Uytterhoeven.
      
         - A fix for a race between request completion and the timeout
           handling from Jeff Moyer.  This is what caused the merge conflict
           with blk-mq/core, in case you are looking at that.
      
         - A dm stacking fix from Mike Snitzer.
      
         - A code consolidation fix and duplicated code removal from Kent
           Overstreet.
      
         - A handful of block bug fixes from Mikulas Patocka, fixing a loop
           crash and memory corruption on blk cg.
      
         - Elevator switch bug fix from Tomoki Sekiyama.
      
        A heads-up that I had to rebase this branch.  Initially the immutable
        bio_vecs had been queued up for inclusion, but a week later, it became
        clear that it wasn't fully cooked yet.  So the decision was made to
        pull this out and postpone it until 3.14.  It was a straight forward
        rebase, just pruning out the immutable series and the later fixes of
        problems with it.  The rest of the patches applied directly and no
        further changes were made"
      
      * 'for-3.13/core' of git://git.kernel.dk/linux-block: (31 commits)
        block: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
        block: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
        block: Do not call sector_div() with a 64-bit divisor
        kernel: trace: blktrace: remove redundent memcpy() in compat_blk_trace_setup()
        block: Consolidate duplicated bio_trim() implementations
        block: Use rw_copy_check_uvector()
        block: Enable sysfs nomerge control for I/O requests in the plug list
        block: properly stack underlying max_segment_size to DM device
        elevator: acquire q->sysfs_lock in elevator_change()
        elevator: Fix a race in elevator switching and md device initialization
        block: Replace __get_cpu_var uses
        bdi: test bdi_init failure
        block: fix a probe argument to blk_register_region
        loop: fix crash if blk_alloc_queue fails
        blk-core: Fix memory corruption if blkcg_init_queue fails
        block: fix race between request completion and timeout handling
        blktrace: Send BLK_TN_PROCESS events to all running traces
        blk-mq: don't disallow request merges for req->special being set
        blk-mq: mq plug list breakage
        blk-mq: fix for flush deadlock
        ...
      0910c0bd
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 2821fe6b
      Linus Torvalds authored
      Pull VFS fixes from Al Viro:
       "Several fixes, mostly for regressions in the last pile.  Howeover,
        prepend_path() forgetting to reininitalize dentry/vfsmount is in 3.12
        as well and qib_fs had been leaking all along..."
      
      The unpaired RCU lock issue was also independently reported by Dave
      Jones with his fuzzer tool..
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        qib_fs: fix (some) dcache abuses
        prepend_path() needs to reinitialize dentry/vfsmount/mnt on restarts
        fix unpaired rcu lock in prepend_path()
        locks: missing unlock on error in generic_add_lease()
        aio: checking for NULL instead of IS_ERR
      2821fe6b
    • viresh kumar's avatar
      cpufreq: OMAP: Fix compilation error 'r & ret undeclared' · 696d0b2c
      viresh kumar authored
      With a recent change "d4019f0a cpufreq: move freq change notifications to cpufreq
      core" few variables (r & ret) are removed by mistake and hence these warnings:
      
      drivers/cpufreq/omap-cpufreq.c: In function omap_target:
      drivers/cpufreq/omap-cpufreq.c:64:2: error: ret undeclared (first use in this function)
      drivers/cpufreq/omap-cpufreq.c:64:2: note: each undeclared identifier is reported only once for each function it appears in
      drivers/cpufreq/omap-cpufreq.c:94:3: error: r undeclared (first use in this function)
      drivers/cpufreq/omap-cpufreq.c:116:1: warning: control reaches end of non-void function [-Wreturn-type]
      
      Lets fix them by declaring those variables again.
      
      Fixes: d4019f0a
      
       (cpufreq: move freq change notifications to cpufreq core)
      Reported-by: default avatarSebastian Capella <sebastian.capella@linaro.org>
      Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      696d0b2c
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm · f47671e2
      Linus Torvalds authored
      Pull ARM updates from Russell King:
       "Included in this series are:
      
         1. BE8 (modern big endian) changes for ARM from Ben Dooks
         2. big.Little support from Nicolas Pitre and Dave Martin
         3. support for LPAE systems with all system memory above 4GB
         4. Perf updates from Will Deacon
         5. Additional prefetching and other performance improvements from Will.
         6. Neon-optimised AES implementation fro Ard.
         7. A number of smaller fixes scattered around the place.
      
        There is a rather horrid merge conflict in tools/perf - I was never
        notified of the conflict because it originally occurred between Will's
        tree and other stuff.  Consequently I have a resolution which Will
        forwarded me, which I'll forward on immediately after sending this
        mail.
      
        The other notable thing is I'm expecting some build breakage in the
        crypto stuff on ARM only with Ard's AES patches.  These were merged
        into a stable git branch which others had already pulled, so there's
        little I can do about this.  The problem is caused because these
        patches have a dependency on some code in the crypto git tree - I
        tried requesting a branch I can pull to resolve these, and all I got
        each time from the crypto people was "we'll revert our patches then"
        which would only make things worse since I still don't have the
        dependent patches.  I've no idea what's going on there or how to
        resolve that, and since I can't split these patches from the rest of
        this pull request, I'm rather stuck with pushing this as-is or
        reverting Ard's patches.
      
        Since it should "come out in the wash" I've left them in - the only
        build problems they seem to cause at the moment are with randconfigs,
        and since it's a new feature anyway.  However, if by -rc1 the
        dependencies aren't in, I think it'd be best to revert Ard's patches"
      
      I resolved the perf conflict roughly as per the patch sent by Russell,
      but there may be some differences.  Any errors are likely mine.  Let's
      see how the crypto issues work out..
      
      * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (110 commits)
        ARM: 7868/1: arm/arm64: remove atomic_clear_mask() in "include/asm/atomic.h"
        ARM: 7867/1: include: asm: use 'int' instead of 'unsigned long' for 'oldval' in atomic_cmpxchg().
        ARM: 7866/1: include: asm: use 'long long' instead of 'u64' within atomic.h
        ARM: 7871/1: amba: Extend number of IRQS
        ARM: 7887/1: Don't smp_cross_call() on UP devices in arch_irq_work_raise()
        ARM: 7872/1: Support arch_irq_work_raise() via self IPIs
        ARM: 7880/1: Clear the IT state independent of the Thumb-2 mode
        ARM: 7878/1: nommu: Implement dummy early_paging_init()
        ARM: 7876/1: clear Thumb-2 IT state on exception handling
        ARM: 7874/2: bL_switcher: Remove cpu_hotplug_driver_{lock,unlock}()
        ARM: footbridge: fix build warnings for netwinder
        ARM: 7873/1: vfp: clear vfp_current_hw_state for dying cpu
        ARM: fix misplaced arch_virt_to_idmap()
        ARM: 7848/1: mcpm: Implement cpu_kill() to synchronise on powerdown
        ARM: 7847/1: mcpm: Factor out logical-to-physical CPU translation
        ARM: 7869/1: remove unused XSCALE_PMU Kconfig param
        ARM: 7864/1: Handle 64-bit memory in case of 32-bit phys_addr_t
        ARM: 7863/1: Let arm_add_memory() always use 64-bit arguments
        ARM: 7862/1: pcpu: replace __get_cpu_var_uses
        ARM: 7861/1: cacheflush: consolidate single-CPU ARMv7 cache disabling code
        ...
      f47671e2
    • Ulf Hansson's avatar
      PM / Runtime: Fix error path for prepare · aa1b9f13
      Ulf Hansson authored
      
      
      If a device prepare callback for some reason would fail, the PM core
      prevented the device from going inactive forever.
      
      In this case, to reverse the pm_runtime_get_noresume() we invokes the
      asyncronous pm_runtime_put(), thus restoring the usage count.
      
      Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
      Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
      aa1b9f13
    • Linus Torvalds's avatar
      Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm · 8ceafbfa
      Linus Torvalds authored
      Pull DMA mask updates from Russell King:
       "This series cleans up the handling of DMA masks in a lot of drivers,
        fixing some bugs as we go.
      
        Some of the more serious errors include:
         - drivers which only set their coherent DMA mask if the attempt to
           set the streaming mask fails.
         - drivers which test for a NULL dma mask pointer, and then set the
           dma mask pointer to a location in their module .data section -
           which will cause problems if the module is reloaded.
      
        To counter these, I have introduced two helper functions:
         - dma_set_mask_and_coherent() takes care of setting both the
           streaming and coherent masks at the same time, with the correct
           error handling as specified by the API.
         - dma_coerce_mask_and_coherent() which resolves the problem of
           drivers forcefully setting DMA masks.  This is more a marker for
           future work to further clean these locations up - the code which
           creates the devices really should be initialising these, but to fix
           that in one go along with this change could potentially be very
           disruptive.
      
        The last thing this series does is prise away some of Linux's addition
        to "DMA addresses are physical addresses and RAM always starts at
        zero".  We have ARM LPAE systems where all system memory is above 4GB
        physical, hence having DMA masks interpreted by (eg) the block layers
        as describing physical addresses in the range 0..DMAMASK fails on
        these platforms.  Santosh Shilimkar addresses this in this series; the
        patches were copied to the appropriate people multiple times but were
        ignored.
      
        Fixing this also gets rid of some ARM weirdness in the setup of the
        max*pfn variables, and brings ARM into line with every other Linux
        architecture as far as those go"
      
      * 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm: (52 commits)
        ARM: 7805/1: mm: change max*pfn to include the physical offset of memory
        ARM: 7797/1: mmc: Use dma_max_pfn(dev) helper for bounce_limit calculations
        ARM: 7796/1: scsi: Use dma_max_pfn(dev) helper for bounce_limit calculations
        ARM: 7795/1: mm: dma-mapping: Add dma_max_pfn(dev) helper function
        ARM: 7794/1: block: Rename parameter dma_mask to max_addr for blk_queue_bounce_limit()
        ARM: DMA-API: better handing of DMA masks for coherent allocations
        ARM: 7857/1: dma: imx-sdma: setup dma mask
        DMA-API: firmware/google/gsmi.c: avoid direct access to DMA masks
        DMA-API: dcdbas: update DMA mask handing
        DMA-API: dma: edma.c: no need to explicitly initialize DMA masks
        DMA-API: usb: musb: use platform_device_register_full() to avoid directly messing with dma masks
        DMA-API: crypto: remove last references to 'static struct device *dev'
        DMA-API: crypto: fix ixp4xx crypto platform device support
        DMA-API: others: use dma_set_coherent_mask()
        DMA-API: staging: use dma_set_coherent_mask()
        DMA-API: usb: use new dma_coerce_mask_and_coherent()
        DMA-API: usb: use dma_set_coherent_mask()
        DMA-API: parport: parport_pc.c: use dma_coerce_mask_and_coherent()
        DMA-API: net: octeon: use dma_coerce_mask_and_coherent()
        DMA-API: net: nxp/lpc_eth: use dma_coerce_mask_and_coherent()
        ...
      8ceafbfa
  5. Nov 13, 2013