1. 22 Jul, 2012 20 commits
    • Linus Torvalds's avatar
      Merge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 5b160bd4
      Linus Torvalds authored
      Pull x86/mce changes from Ingo Molnar:
       "This tree improves the AMD thresholding bank code and includes a
        memory fault signal handling fixlet."
      
      * 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/mce: Fix siginfo_t->si_addr value for non-recoverable memory faults
        x86, MCE, AMD: Update copyrights and boilerplate
        x86, MCE, AMD: Give proper names to the thresholding banks
        x86, MCE, AMD: Make error_count read only
        x86, MCE, AMD: Cleanup reading of error_count
        x86, MCE, AMD: Print decimal thresholding values
        x86, MCE, AMD: Move shared bank to node descriptor
        x86, MCE, AMD: Remove local_allocate_... wrapper
        x86, MCE, AMD: Remove shared banks sysfs linking
        x86, amd_nb: Export model 0x10 and later PCI id
      5b160bd4
    • Linus Torvalds's avatar
      Merge tag 'pm-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 7100e505
      Linus Torvalds authored
      Pull power management updates from Rafael Wysocki:
      
       - ACPI conversion to PM handling based on struct dev_pm_ops.
       - Conversion of a number of platform drivers to PM handling based on
         struct dev_pm_ops and removal of empty legacy PM callbacks from a
         couple of PCI drivers.
       - Suspend-to-both for in-kernel hibernation from Bojan Smojver.
       - cpuidle fixes and cleanups from ShuoX Liu, Daniel Lezcano and Preeti
         Murthy.
       - cpufreq bug fixes from Jonghwa Lee and Stephen Boyd.
       - Suspend and hibernate fixes from Srivatsa Bhat and Colin Cross.
       - Generic PM domains framework updates.
       - RTC CMOS wakeup signaling update from Paul Fox.
       - sparse warnings fixes from Sachin Kamat.
       - Build warnings fixes for the generic PM domains framework and PM
         sysfs code.
       - sysfs switch for printing device suspend times from Sameer Nanda.
       - Documentation fix from Oskar Schirmer.
      
      * tag 'pm-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (70 commits)
        cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency switch
        EXYNOS: bugfix on retrieving old_index from freqs.old
        PM / Sleep: call early resume handlers when suspend_noirq fails
        PM / QoS: Use NULL pointer instead of plain integer in qos.c
        PM / QoS: Use NULL pointer instead of plain integer in pm_qos.h
        PM / Sleep: Require CAP_BLOCK_SUSPEND to use wake_lock/wake_unlock
        PM / Sleep: Add missing static storage class specifiers in main.c
        cpuilde / ACPI: remove time from acpi_processor_cx structure
        cpuidle / ACPI: remove usage from acpi_processor_cx structure
        cpuidle / ACPI : remove latency_ticks from acpi_processor_cx structure
        rtc-cmos: report wakeups from interrupt handler
        PM / Sleep: Fix build warning in sysfs.c for CONFIG_PM_SLEEP unset
        PM / Domains: Fix build warning for CONFIG_PM_RUNTIME unset
        olpc-xo15-sci: Use struct dev_pm_ops for power management
        PM / Domains: Replace plain integer with NULL pointer in domain.c file
        PM / Domains: Add missing static storage class specifier in domain.c file
        PM / crypto / ux500: Use struct dev_pm_ops for power management
        PM / IPMI: Remove empty legacy PCI PM callbacks
        tpm_nsc: Use struct dev_pm_ops for power management
        tpm_tis: Use struct dev_pm_ops for power management
        ...
      7100e505
    • Linus Torvalds's avatar
      Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · cb47c183
      Linus Torvalds authored
      Pull target updates from Nicholas Bellinger:
       "There have been lots of work in a number of areas this past round.
        The highlights include:
      
         - Break out target_core_cdb.c emulation into SPC/SBC ops (hch)
         - Add a parse_cdb method to target backend drivers (hch)
         - Move sync_cache + write_same + unmap into spc_ops (hch)
         - Use target_execute_cmd for WRITEs in iscsi_target + srpt (hch)
         - Offload WRITE I/O backend submission in tcm_qla2xxx + tcm_fc (hch +
           nab)
         - Refactor core_update_device_list_for_node() into enable/disable
           funcs (agrover)
         - Replace the TCM processing thread with a TMR work queue (hch)
         - Fix regression in transport_add_device_to_core_hba from TMR
           conversion (DanC)
         - Remove racy, now-redundant check of sess_tearing_down with qla2xxx
           (roland)
         - Add range checking, fix reading of data len + possible underflow in
           UNMAP (roland)
         - Allow for target_submit_cmd() returning errors + convert fabrics
           (roland + nab)
         - Drop bogus struct file usage for iSCSI/SCTP (viro)"
      
      * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (54 commits)
        iscsi-target: Drop bogus struct file usage for iSCSI/SCTP
        target: NULL dereference on error path
        target: Allow for target_submit_cmd() returning errors
        target: Check number of unmap descriptors against our limit
        target: Fix possible integer underflow in UNMAP emulation
        target: Fix reading of data length fields for UNMAP commands
        target: Add range checking to UNMAP emulation
        target: Add generation of LOGICAL BLOCK ADDRESS OUT OF RANGE
        target: Make unnecessarily global se_dev_align_max_sectors() static
        target: Remove se_session.sess_wait_list
        qla2xxx: Remove racy, now-redundant check of sess_tearing_down
        target: Check sess_tearing_down in target_get_sess_cmd()
        sbp-target: Consolidate duplicated error path code in sbp_handle_command()
        target: Un-export target_get_sess_cmd()
        qla2xxx: Get rid of redundant qla_tgt_sess.tearing_down
        target: Make core_disable_device_list_for_node use pre-refactoring lock ordering
        target: refactor core_update_device_list_for_node()
        target: Eliminate else using boolean logic
        target: Misc retval cleanups
        target: Remove hba param from core_dev_add_lun
        ...
      cb47c183
    • Linus Torvalds's avatar
      Merge tag 'regulator-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator · 4d460fd3
      Linus Torvalds authored
      Pull regulator updates from Mark Brown:
       "Lots and lots of fixes from Axel and some others here, plus some
        framework enhancements which continue the theme of factoring code out
        of the drivers and into the core.
      
         - Initial framework support for GPIO controlled enable signals,
           saving a bunch of code in drivers.
         - Move fixed regulator enable time and voltage mapping table
           specifications to data.
         - Used some of the recent framework enhancements to make voltage
           change notifications more useful, passing the voltage in as an
           argument to the notification.
         - Fixed the pattern used for finding individual regulators on a
           device to not rely on the node name, supporting the use of multiple
           PMICs of the same type in the system.
         - New drivers for Maxim MAX77686, TI LP872x and LP8788, Samsung
           S2MPS11, and Wolfson Arizona microphone supplies and LDOs."
      
      * tag 'regulator-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (176 commits)
        regulator: add new lp8788 regulator driver
        regulator: mc13xxx: Remove extern function declaration for mc13xxx_sw_regulator
        regulator: tps65910: set input_supply on desc unconditionally
        regulator: palmas: Fix calcuating selector in palmas_map_voltage_smps
        regulator: lp872x: Simplify implementation of lp872x_find_regulator_init_data()
        regulator: twl: Fix list_voltate for twl6030ldo_ops
        regulator: twl: Convert twl6030ldo_ops to [get|set]_voltage_sel
        regulator: twl: Fix the formula to calculate vsel and voltage for twl6030ldo
        regulator: s5m8767: Properly handle gpio_request failure
        regulator: max8997: Properly handle gpio_request failure
        regulator: tps62360: use devm_* for gpio request
        regulator: tps6586x: add support for input supply
        regulator: tps65217: Add device tree support
        regulator: aat2870: Remove unused min_uV and max_uV from struct aat2870_regulator
        regulator: aat2870: Convert to regulator_list_voltage_table
        regulator: da9052: initialize of_node param for regulator register
        regulator: Add REGULATOR_STATUS_UNDEFINED.
        regulator: Fix a typo in regulator_mode_to_status() core function.
        regulator: s2mps11: Use sec_reg_write rather than sec_reg_update when mask is 0xff
        regulator: s2mps11: Fix wrong setting for config.dev
        ...
      4d460fd3
    • Linus Torvalds's avatar
      Merge tag 'regmap-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap · 7cd58b0a
      Linus Torvalds authored
      Pull regmap updates from Mark Brown:
       "A few fixes plus a few features, the most generally useful thing being
        the register paging support which can be used by quite a few devices:
      
         - Support for wake IRQs in regmap-irq
         - Support for register paging
         - Support for explicitly specified endianness, mostly for MMIO."
      
      * tag 'regmap-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
        regmap: Fix incorrect arguments to kzalloc() call
        regmap: Add hook for printk logging for debugging during early init
        regmap: Fix work_buf switching for page update during virtual range access.
        regmap: Add support for register indirect addressing.
        regmap: Move lock out from internal function _regmap_update_bits().
        regmap: mmio: Staticize regmap_mmio_gen_context()
        regmap: Remove warning on stubbed dev_get_regmap()
        regmap: Implement support for wake IRQs
        regmap: Don't try to map non-existant IRQs
        regmap: Constify regmap_irq_chip
        regmap: mmio: request native endian formatting
        regmap: allow busses to request formatting with specific endianness
      7cd58b0a
    • Linus Torvalds's avatar
      Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · e2b34e31
      Linus Torvalds authored
      Pull a x86/build change from Ingo Molnar.
      
      This makes the default stack alignment on x86-64 be just 8, allowing for
      improved code generation (it can avoid some unnecessary extra alignment
      logic and use just pure push/pop sequences) and smaller stack frames.
      
      We can't generally do SSE with 16-byte alignment issues in the kernel anyway.
      
      * 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86-64, gcc: Use -mpreferred-stack-boundary=3 if supported
      e2b34e31
    • Linus Torvalds's avatar
      Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 2bd3488f
      Linus Torvalds authored
      Pull x86/uv changes from Ingo Molnar:
       "UV2 BAU productization fixes.
      
        The BAU (Broadcast Assist Unit) is SGI's fancy out of line way on UV
        hardware to do TLB flushes, instead of the normal APIC IPI methods.
        The commits here fix / work around hangs in their latest hardware
        iteration (UV2).
      
        My understanding is that the main purpose of the out of line
        signalling channel is to improve scalability: the UV APIC hardware
        glue does not handle broadcasting to many CPUs very well, and this
        matters most for TLB shootdowns.
      
        [ I don't agree with all aspects of the current approach: in hindsight
          it would have been better to link the BAU at the IPI/APIC driver
          level instead of the TLB shootdown level, where TLB flushes are
          really just one of the uses of broadcast SMP messages.  Doing that
          would improve scalability in some other ways and it would also
          remove a few uglies from the TLB path.  It would also be nice to
          push more is_uv_system() tests into proper x86_init or x86_platform
          callbacks.  Cliff? ]"
      
      * 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/uv: Work around UV2 BAU hangs
        x86/uv: Implement UV BAU runtime enable and disable control via /proc/sgi_uv/
        x86/uv: Fix the UV BAU destination timeout period
      2bd3488f
    • Linus Torvalds's avatar
      Merge branch 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d5d96ed2
      Linus Torvalds authored
      Pull x86/reboot changes from Ingo Molnar:
       "Now that the revampted x86 real-mode trampoline code is upstream and
        seems to be working well, we can extend the 64-bit reboot code to be
        as capable as the 32-bit one."
      
      * 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86-64, reboot: Be more paranoid in 64-bit reboot=bios
        x86, reboot: Drop redundant write of reboot_mode
        x86-64, reboot: Allow reboot=bios and reboot-cpu override on x86-64
      d5d96ed2
    • Linus Torvalds's avatar
      Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · bd3e57f9
      Linus Torvalds authored
      Pull x86 platform changes from Ingo Molnar:
       "This tree mostly involves various APIC driver cleanups/robustization,
        and vSMP motivated platform callback improvements/cleanups"
      
      Fix up trivial conflict due to printk cleanup right next to return value
      change.
      
      * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
        Revert "x86/early_printk: Replace obsolete simple_strtoul() usage with kstrtoint()"
        x86/apic/x2apic: Use multiple cluster members for the irq destination only with the explicit affinity
        x86/apic/x2apic: Limit the vector reservation to the user specified mask
        x86/apic: Optimize cpu traversal in __assign_irq_vector() using domain membership
        x86/vsmp: Fix vector_allocation_domain's return value
        irq/apic: Use config_enabled(CONFIG_SMP) checks to clean up irq_set_affinity() for UP
        x86/vsmp: Fix linker error when CONFIG_PROC_FS is not set
        x86/apic/es7000: Make apicid of a cluster (not CPU) from a cpumask
        x86/apic/es7000+summit: Always make valid apicid from a cpumask
        x86/apic/es7000+summit: Fix compile warning in cpu_mask_to_apicid()
        x86/apic: Fix ugly casting and branching in cpu_mask_to_apicid_and()
        x86/apic: Eliminate cpu_mask_to_apicid() operation
        x86/x2apic/cluster: Vector_allocation_domain() should return a value
        x86/apic/irq_remap: Silence a bogus pr_err()
        x86/vsmp: Ignore IOAPIC IRQ affinity if possible
        x86/apic: Make cpu_mask_to_apicid() operations check cpu_online_mask
        x86/apic: Make cpu_mask_to_apicid() operations return error code
        x86/apic: Avoid useless scanning thru a cpumask in assign_irq_vector()
        x86/apic: Try to spread IRQ vectors to different priority levels
        x86/apic: Factor out default vector_allocation_domain() operation
        ...
      bd3e57f9
    • Linus Torvalds's avatar
      Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3fad0953
      Linus Torvalds authored
      Pull debug-for-linus git tree from Ingo Molnar.
      
      Fix up trivial conflict in arch/x86/kernel/cpu/perf_event_intel.c due to
      a printk() having changed to a pr_info() differently in the two branches.
      
      * 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86: Move call to print_modules() out of show_regs()
        x86/mm: Mark free_initrd_mem() as __init
        x86/microcode: Mark microcode_id[] as __initconst
        x86/nmi: Clean up register_nmi_handler() usage
        x86: Save cr2 in NMI in case NMIs take a page fault (for i386)
        x86: Remove cmpxchg from i386 NMI nesting code
        x86: Save cr2 in NMI in case NMIs take a page fault
        x86/debug: Add KERN_<LEVEL> to bare printks, convert printks to pr_<level>
      3fad0953
    • Linus Torvalds's avatar
      Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a065de0d
      Linus Torvalds authored
      Pull x86/asm changes from Ingo Molnar:
       "Assorted single-commit improvements, as usual"
      
      * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/mm/mtrr: Slightly simplify print_mtrr_state()
        x86/mm/mtrr: Fix alignment determination in range_to_mtrr()
        x86/copy_user_generic: Optimize copy_user_generic with CPU erms feature
        x86/alternatives: Use atomic_xchg() instead atomic_dec_and_test() for stop_machine_text_poke()
      a065de0d
    • Linus Torvalds's avatar
      Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3992c032
      Linus Torvalds authored
      Pull timer core changes from Ingo Molnar:
       "Continued cleanups of the core time and NTP code, plus more nohz work
        preparing for tick-less userspace execution."
      
      * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        time: Rework timekeeping functions to take timekeeper ptr as argument
        time: Move xtime_nsec adjustment underflow handling timekeeping_adjust
        time: Move arch_gettimeoffset() usage into timekeeping_get_ns()
        time: Refactor accumulation of nsecs to secs
        time: Condense timekeeper.xtime into xtime_sec
        time: Explicitly use u32 instead of int for shift values
        time: Whitespace cleanups per Ingo%27s requests
        nohz: Move next idle expiry time record into idle logic area
        nohz: Move ts->idle_calls incrementation into strict idle logic
        nohz: Rename ts->idle_tick to ts->last_tick
        nohz: Make nohz API agnostic against idle ticks cputime accounting
        nohz: Separate idle sleeping time accounting from nohz logic
        timers: Improve get_next_timer_interrupt()
        timers: Add accounting of non deferrable timers
        timers: Consolidate base->next_timer update
        timers: Create detach_if_pending() and use it
      3992c032
    • Mark Brown's avatar
      3384fb98
    • Mark Brown's avatar
    • Mark Brown's avatar
      Merge branches 'regmap-core', 'regmap-irq' and 'regmap-page' into regmap-next · 38e23194
      Mark Brown authored
      Conflicts (trivial context stuff):
      	drivers/base/regmap/regmap.c
      	include/linux/regmap.h
      38e23194
    • Linus Torvalds's avatar
      Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 55acdddb
      Linus Torvalds authored
      Pull smp/hotplug changes from Ingo Molnar:
       "Various cleanups to the SMP hotplug code - a continuing effort of
        Thomas et al"
      
      * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        smpboot: Remove leftover declaration
        smp: Remove num_booting_cpus()
        smp: Remove ipi_call_lock[_irq]()/ipi_call_unlock[_irq]()
        POWERPC: Smp: remove call to ipi_call_lock()/ipi_call_unlock()
        SPARC: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq()
        ia64: SMP: Remove call to ipi_call_lock_irq()/ipi_call_unlock_irq()
        x86-smp-remove-call-to-ipi_call_lock-ipi_call_unlock
        tile: SMP: Remove call to ipi_call_lock()/ipi_call_unlock()
        S390: Smp: remove call to ipi_call_lock()/ipi_call_unlock()
        parisc: Smp: remove call to ipi_call_lock()/ipi_call_unlock()
        mn10300: SMP: Remove call to ipi_call_lock()/ipi_call_unlock()
        hexagon: SMP: Remove call to ipi_call_lock()/ipi_call_unlock()
      55acdddb
    • Linus Torvalds's avatar
      Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 2eafeb6a
      Linus Torvalds authored
      Pull perf events changes from Ingo Molnar:
      
       "- kernel side:
      
         - Intel uncore PMU support for Nehalem and Sandy Bridge CPUs, we
           support both the events available via the MSR and via the PCI
           access space.
      
         - various uprobes cleanups and restructurings
      
         - PMU driver quirks by microcode version and required x86 microcode
           loader cleanups/robustization
      
         - various tracing robustness updates
      
         - static keys: remove obsolete static_branch()
      
        - tooling side:
      
         - GTK browser improvements
      
         - perf report browser: support screenshots to file
      
         - more automated tests
      
         - perf kvm improvements
      
         - perf bench refinements
      
         - build environment improvements
      
         - pipe mode improvements
      
         - libtraceevent updates, we have now hopefully merged most bits with
           the out of tree forked code base
      
        ... and many other goodies."
      
      * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (138 commits)
        tracing: Check for allocation failure in __tracing_open()
        perf/x86: Fix intel_perfmon_event_mapformatting
        jump label: Remove static_branch()
        tracepoint: Use static_key_false(), since static_branch() is deprecated
        perf/x86: Uncore filter support for SandyBridge-EP
        perf/x86: Detect number of instances of uncore CBox
        perf/x86: Fix event constraint for SandyBridge-EP C-Box
        perf/x86: Use 0xff as pseudo code for fixed uncore event
        perf/x86: Save a few bytes in 'struct x86_pmu'
        perf/x86: Add a microcode revision check for SNB-PEBS
        perf/x86: Improve debug output in check_hw_exists()
        perf/x86/amd: Unify AMD's generic and family 15h pmus
        perf/x86: Move Intel specific code to intel_pmu_init()
        perf/x86: Rename Intel specific macros
        perf/x86: Fix USER/KERNEL tagging of samples
        perf tools: Split event symbols arrays to hw and sw parts
        perf tools: Split out PE_VALUE_SYM parsing token to SW and HW tokens
        perf tools: Add empty rule for new line in event syntax parsing
        perf test: Use ARRAY_SIZE in parse events tests
        tools lib traceevent: Cleanup realloc use
        ...
      2eafeb6a
    • Linus Torvalds's avatar
      Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 16d286e6
      Linus Torvalds authored
      Pull RCU changes from Ingo Molnar:
       "Quoting from Paul, the major features of this series are:
      
        1. Preventing latency spikes of more than 200 microseconds for
           kernels built with NR_CPUS=4096, which is reportedly becoming the
           default for some distros.  This is a first step, as it does not
           help with systems that actually -have- 4096 CPUs (work on this case
           is in progress, but is not yet ready for mainline).
      
           This category also includes improving concurrency of rcu_barrier(),
           placed here due to conflicts.  Posted to LKML at:
      
            https://lkml.org/lkml/2012/6/22/381
      
           Note that patches 18-22 of that series have been defered to 3.7, as
           they have not yet proven themselves to be mainline-ready (and yes,
           these are the ones intended to get rid of RCU's latency spikes for
           systems that actually have 4096 CPUs).
      
        2. Updates to documentation and rcutorture fixes, the latter category
           including improvements to rcu_barrier() testing.  Posted to LKML at
      
            http://lkml.indiana.edu/hypermail/linux/kernel/1206.1/04094.html.
      
        3. Miscellaneous fixes posted to LKML at:
      
            https://lkml.org/lkml/2012/6/22/500
      
           with the exception of the last commit, which was posted here:
      
            http://www.gossamer-threads.com/lists/linux/kernel/1561830
      
        4. RCU_FAST_NO_HZ fixes and improvements.  Posted to LKML at:
      
            http://lkml.indiana.edu/hypermail/linux/kernel/1206.1/00006.html
            http://www.gossamer-threads.com/lists/linux/kernel/1561833
      
           The first four patches of the first series went into 3.5 to fix a
           regression.
      
        5. Code-style fixes.  These were posted to LKML at
      
            http://lkml.indiana.edu/hypermail/linux/kernel/1205.2/01180.html
            http://lkml.indiana.edu/hypermail/linux/kernel/1205.2/01181.html"
      
      * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (48 commits)
        rcu: Fix broken strings in RCU's source code.
        rcu: Fix code-style issues involving "else"
        rcu: Introduce check for callback list/count mismatch
        rcu: Make RCU_FAST_NO_HZ respect nohz= boot parameter
        rcu: Fix qlen_lazy breakage
        rcu: Round FAST_NO_HZ lazy timeout to nearest second
        rcu: The rcu_needs_cpu() function is not a quiescent state
        rcu: Dump only the current CPU's buffers for idle-entry/exit warnings
        rcu: Add check for CPUs going offline with callbacks queued
        rcu: Disable preemption in rcu_blocking_is_gp()
        rcu: Prevent uninitialized string in RCU CPU stall info
        rcu: Fix rcu_is_cpu_idle() #ifdef in TINY_RCU
        rcu: Split RCU core processing out of __call_rcu()
        rcu: Prevent __call_rcu() from invoking RCU core on offline CPUs
        rcu: Make __call_rcu() handle invocation from idle
        rcu: Remove function versions of __kfree_rcu and __is_kfree_rcu_offset
        rcu: Consolidate tree/tiny __rcu_read_{,un}lock() implementations
        rcu: Remove return value from rcu_assign_pointer()
        key: Remove extraneous parentheses from rcu_assign_keypointer()
        rcu: Remove return value from RCU_INIT_POINTER()
        ...
      16d286e6
    • Linus Torvalds's avatar
      Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ceee0e95
      Linus Torvalds authored
      Pull core/iommu changes from Ingo Molnar.
      
      * 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        iommu/dmar: Use pr_format() instead of PREFIX to tidy up pr_*() calls
        iommu/dmar: Reserve mmio space used by the IOMMU, if the BIOS forgets to
        iommu/dmar: Replace printks with appropriate pr_*()
      ceee0e95
    • Ingo Molnar's avatar
      Revert "x86/early_printk: Replace obsolete simple_strtoul() usage with kstrtoint()" · 36d93d88
      Ingo Molnar authored
      This reverts commit fbd24153.
      
      This commit is subtly buggy: kstrto*int() can return an error but
      it's not checked in every path. simple_strtoul() on the other hand
      could not fail, so this patch subtly intruduces new failure modes.
      Signed-off-by: default avatarShuah Khan <shuahkhan@gmail.com>
      Link: http://lkml.kernel.org/r/1338424803.3569.5.camel@lorien2Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      36d93d88
  2. 21 Jul, 2012 8 commits
    • Linus Torvalds's avatar
      Linux 3.5 · 28a33cbc
      Linus Torvalds authored
      28a33cbc
    • Rafael J. Wysocki's avatar
      Remove SYSTEM_SUSPEND_DISK system state · bff9d186
      Rafael J. Wysocki authored
      The SYSTEM_SUSPEND_DISK system state is never used, so drop it.
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      bff9d186
    • Linus Torvalds's avatar
      Merge branch 'anton-kgdb' (kgdb dmesg fixups) · 9a2bc860
      Linus Torvalds authored
      Merge emailed kgdb dmesg fixups patches from Anton Vorontsov:
       "The dmesg command appears to be broken after the printk rework.  The
        old logic in the kdb code makes no sense in terms of current
        printk/logging storage format, and KDB simply hangs forever upon
        entering 'dmesg' command.
      
        The first patch revives the command by switching to kmsg_dumper
        iterator.  As a side-effect, the code is now much more simpler.
      
        A few changes were needed in the printk.c: we needed unlocked variant
        of the kmsg_dumper iterator, but these can surely wait for 3.6.
      
        It's probably too late even for the first patch to go to 3.5, but I'll
        try to convince otherwise.  :-) Here we go:
      
         - The current code is broken for sure, and has no hope to work at
           all.  It is a regression
         - The new code works for me, and probably works for everyone else;
         - If it compiles (and I urge everyone to compile-test it on your
           setup), it hardly can make things worse."
      
      * Merge emailed patches from Anton Vorontsov: (4 commits)
        kdb: Switch to nolock variants of kmsg_dump functions
        printk: Implement some unlocked kmsg_dump functions
        printk: Remove kdb_syslog_data
        kdb: Revive dmesg command
      9a2bc860
    • Anton Vorontsov's avatar
      kdb: Switch to nolock variants of kmsg_dump functions · c064da47
      Anton Vorontsov authored
      The locked variants are prone to deadlocks (suppose we got to the
      debugger w/ the logbuf lock held), so let's switch to nolock variants.
      Signed-off-by: default avatarAnton Vorontsov <anton.vorontsov@linaro.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      c064da47
    • Anton Vorontsov's avatar
      printk: Implement some unlocked kmsg_dump functions · 533827c9
      Anton Vorontsov authored
      If used from KDB, the locked variants are prone to deadlocks (suppose we
      got to the debugger w/ the logbuf lock held).
      
      So, we have to implement a few routines that grab no logbuf lock.
      
      Yet we don't need these functions in modules, so we don't export them.
      Signed-off-by: default avatarAnton Vorontsov <anton.vorontsov@linaro.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      533827c9
    • Anton Vorontsov's avatar
      printk: Remove kdb_syslog_data · 1b499d05
      Anton Vorontsov authored
      The function is no longer needed, so remove it.
      Signed-off-by: default avatarAnton Vorontsov <anton.vorontsov@linaro.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      1b499d05
    • Anton Vorontsov's avatar
      kdb: Revive dmesg command · bc792e61
      Anton Vorontsov authored
      The kgdb dmesg command is broken after the printk rework.  The old logic
      in kdb code makes no sense in terms of current printk/logging storage
      format, and KDB simply hangs forever.
      
      This patch revives the command by switching to kmsg_dumper iterator.
      
      The code is now much more simpler and shorter.
      Signed-off-by: default avatarAnton Vorontsov <anton.vorontsov@linaro.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      bc792e61
    • Al Viro's avatar
      iscsi-target: Drop bogus struct file usage for iSCSI/SCTP · bf6932f4
      Al Viro authored
      From Al Viro:
      
      	BTW, speaking of struct file treatment related to sockets -
              there's this piece of code in iscsi:
              /*
               * The SCTP stack needs struct socket->file.
               */
              if ((np->np_network_transport == ISCSI_SCTP_TCP) ||
                  (np->np_network_transport == ISCSI_SCTP_UDP)) {
                      if (!new_sock->file) {
                              new_sock->file = kzalloc(
                                              sizeof(struct file), GFP_KERNEL);
      
      For one thing, as far as I can see it'not true - sctp does *not* depend on
      socket->file being non-NULL; it does, in one place, check socket->file->f_flags
      for O_NONBLOCK, but there it treats NULL socket->file as "flag not set".
      Which is the case here anyway - the fake struct file created in
      __iscsi_target_login_thread() (and in iscsi_target_setup_login_socket(), with
      the same excuse) do *not* get that flag set.
      
      Moreover, it's a bloody serious violation of a bunch of asserts in VFS;
      all struct file instances should come from filp_cachep, via get_empty_filp()
      (or alloc_file(), which is a wrapper for it).  FWIW, I'm very tempted to
      do this and be done with the entire mess:
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Cc: Andy Grover <agrover@redhat.com>
      Cc: Hannes Reinecke <hare@suse.de>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: stable@vger.kernel.org
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      bf6932f4
  3. 20 Jul, 2012 12 commits
    • Rafael J. Wysocki's avatar
      Merge branch 'pm-cpufreq' · 75a4161a
      Rafael J. Wysocki authored
      * pm-cpufreq:
        cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency switch
        EXYNOS: bugfix on retrieving old_index from freqs.old
      75a4161a
    • Stephen Boyd's avatar
      cpufreq: Fix sysfs deadlock with concurrent hotplug/frequency switch · a9144436
      Stephen Boyd authored
      Running one program that continuously hotplugs and replugs a cpu
      concurrently with another program that continuously writes to the
      scaling_setspeed node eventually deadlocks with:
      
      =============================================
      [ INFO: possible recursive locking detected ]
      3.4.0 #37 Tainted: G        W
      ---------------------------------------------
      filemonkey/122 is trying to acquire lock:
       (s_active#13){++++.+}, at: [<c01a3d28>] sysfs_remove_dir+0x9c/0xb4
      
      but task is already holding lock:
       (s_active#13){++++.+}, at: [<c01a22f0>] sysfs_write_file+0xe8/0x140
      
      other info that might help us debug this:
       Possible unsafe locking scenario:
      
             CPU0
             ----
        lock(s_active#13);
        lock(s_active#13);
      
       *** DEADLOCK ***
      
       May be due to missing lock nesting notation
      
      2 locks held by filemonkey/122:
       #0:  (&buffer->mutex){+.+.+.}, at: [<c01a2230>] sysfs_write_file+0x28/0x140
       #1:  (s_active#13){++++.+}, at: [<c01a22f0>] sysfs_write_file+0xe8/0x140
      
      stack backtrace:
      [<c0014fcc>] (unwind_backtrace+0x0/0x120) from [<c00ca600>] (validate_chain+0x6f8/0x1054)
      [<c00ca600>] (validate_chain+0x6f8/0x1054) from [<c00cb778>] (__lock_acquire+0x81c/0x8d8)
      [<c00cb778>] (__lock_acquire+0x81c/0x8d8) from [<c00cb9c0>] (lock_acquire+0x18c/0x1e8)
      [<c00cb9c0>] (lock_acquire+0x18c/0x1e8) from [<c01a3ba8>] (sysfs_addrm_finish+0xd0/0x180)
      [<c01a3ba8>] (sysfs_addrm_finish+0xd0/0x180) from [<c01a3d28>] (sysfs_remove_dir+0x9c/0xb4)
      [<c01a3d28>] (sysfs_remove_dir+0x9c/0xb4) from [<c02d0e5c>] (kobject_del+0x10/0x38)
      [<c02d0e5c>] (kobject_del+0x10/0x38) from [<c02d0f74>] (kobject_release+0xf0/0x194)
      [<c02d0f74>] (kobject_release+0xf0/0x194) from [<c0565a98>] (cpufreq_cpu_put+0xc/0x24)
      [<c0565a98>] (cpufreq_cpu_put+0xc/0x24) from [<c05683f0>] (store+0x6c/0x74)
      [<c05683f0>] (store+0x6c/0x74) from [<c01a2314>] (sysfs_write_file+0x10c/0x140)
      [<c01a2314>] (sysfs_write_file+0x10c/0x140) from [<c014af44>] (vfs_write+0xb0/0x128)
      [<c014af44>] (vfs_write+0xb0/0x128) from [<c014b06c>] (sys_write+0x3c/0x68)
      [<c014b06c>] (sys_write+0x3c/0x68) from [<c000e0e0>] (ret_fast_syscall+0x0/0x3c)
      
      This is because store() in cpufreq.c indirectly calls
      kobject_get() via cpufreq_cpu_get() and is the last one to call
      kobject_put() via cpufreq_cpu_put(). Sysfs code should not call
      kobject_get() or kobject_put() directly (see the comment around
      sysfs_schedule_callback() for more information).
      
      Fix this deadlock by introducing two new functions:
      
      	struct cpufreq_policy *cpufreq_cpu_get_sysfs(unsigned int cpu)
      	void cpufreq_cpu_put_sysfs(struct cpufreq_policy *data)
      
      which do the same thing as cpufreq_cpu_{get,put}() but don't call
      kobject functions.
      
      To easily trigger this deadlock you can insert an msleep() with a
      reasonably large value right after the fail label at the bottom
      of the store() function in cpufreq.c and then write
      scaling_setspeed in one task and offline the cpu in another. The
      first task will hang and be detected by the hung task detector.
      Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
      Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      a9144436
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · d75e2c9a
      Linus Torvalds authored
      Pull late MIPS fixes from Ralf Baechle:
       "This fixes a number of lose ends in the MIPS code and various bug
        fixes.
      
        Aside of dropping some patch that should not be in this pull request
        everything has sat in -next for quite a while and there are no known
        issues.
      
        The biggest patch in this patch set moves the allocation of an array
        that is aliased to a function (for runtime generated code) to
        assembler code.  This avoids an issue with certain toolchains when
        building for microMIPS."
      
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (35 commits)
        MIPS: PCI: Move fixups from __init to __devinit.
        MIPS: Fix bug.h MIPS build regression
        MIPS: sync-r4k: remove redundant irq operation
        MIPS: smp: Warn on too early irq enable
        MIPS: call set_cpu_online() on cpu being brought up with irq disabled
        MIPS: call ->smp_finish() a little late
        MIPS: Yosemite: delay irq enable to ->smp_finish()
        MIPS: SMTC: delay irq enable to ->smp_finish()
        MIPS: BMIPS: delay irq enable to ->smp_finish()
        MIPS: Octeon: delay enable irq to ->smp_finish()
        MIPS: Oprofile: Fix build as a module.
        MIPS: BCM63XX: Fix BCM6368 IPSec clock bit
        MIPS: perf: Fix build error caused by unused counters_per_cpu_to_total()
        MIPS: Fix Magic SysRq L kernel crash.
        MIPS: BMIPS: Fix duplicate header inclusion.
        mips: mark const init data with __initconst instead of __initdata
        MIPS: cmpxchg.h: Add missing include
        MIPS: Malta may also be equipped with MIPS64 R2 processors.
        MIPS: Fix typo multipy -> multiply
        MIPS: Cavium: Fix duplicate ARCH_SPARSEMEM_ENABLE in kconfig.
        ...
      d75e2c9a
    • Linus Torvalds's avatar
      Merge tag 'dm-3.5-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm · 93517374
      Linus Torvalds authored
      Pull device-mapper discard fixes from Alasdair G Kergon:
        - avoid a crash in dm-raid1 when discards coincide with mirror
          recovery;
        - avoid discarding shared data that's still needed in dm-thin;
        - don't guarantee that discarded blocks will be wiped in dm-raid1.
      
      * tag 'dm-3.5-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm:
        dm raid1: set discard_zeroes_data_unsupported
        dm thin: do not send discards to shared blocks
        dm raid1: fix crash with mirror recovery and discard
      93517374
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd · ce9f8d6b
      Linus Torvalds authored
      Pull pnfs/ore fixes from Boaz Harrosh:
       "These are catastrophic fixes to the pnfs objects-layout that were just
        discovered.  They are also destined for @stable.
      
        I have found these and worked on them at around RC1 time but
        unfortunately went to the hospital for kidney stones and had a very
        slow recovery.  I refrained from sending them as is, before proper
        testing, and surly I have found a bug just yesterday.
      
        So now they are all well tested, and have my sign-off.  Other then
        fixing the problem at hand, and assuming there are no bugs at the new
        code, there is low risk to any surrounding code.  And in anyway they
        affect only these paths that are now broken.  That is RAID5 in pnfs
        objects-layout code.  It does also affect exofs (which was not broken)
        but I have tested exofs and it is lower priority then objects-layout
        because no one is using exofs, but objects-layout has lots of users."
      
      * 'for-linus' of git://git.open-osd.org/linux-open-osd:
        pnfs-obj: Fix __r4w_get_page when offset is beyond i_size
        pnfs-obj: don't leak objio_state if ore_write/read fails
        ore: Unlock r4w pages in exact reverse order of locking
        ore: Remove support of partial IO request (NFS crash)
        ore: Fix NFS crash by supporting any unaligned RAID IO
      ce9f8d6b
    • Linus Torvalds's avatar
      Merge tag 'upstream-3.5-rc8' of git://git.infradead.org/linux-ubifs · 17934162
      Linus Torvalds authored
      Pull UBIFS free space fix-up bugfix from Artem Bityutskiy:
       "It's been reported already twice recently:
      
          http://lists.infradead.org/pipermail/linux-mtd/2012-May/041408.html
          http://lists.infradead.org/pipermail/linux-mtd/2012-June/042422.html
      
        and we finally have the fix.  I am quite confident the fix is correct
        because I could reproduce the problem with nandsim and verify the fix.
        It was also verified by Iwo (the reporter).
      
        I am also confident that this is OK to merge the fix so late because
        this patch affects only the fixup functionality, which is not used by
        most users."
      
      * tag 'upstream-3.5-rc8' of git://git.infradead.org/linux-ubifs:
        UBIFS: fix a bug in empty space fix-up
      17934162
    • Dan Carpenter's avatar
      target: NULL dereference on error path · 2962846d
      Dan Carpenter authored
      During a failure in transport_add_device_to_core_hba() code, we called
      destroy_workqueue(dev->tmr_wq) before ->tmr_wq was allocated which leads
      to an oops.
      
      This fixes a regression introduced in with:
      
      commit af877292
      Author: Christoph Hellwig <hch@infradead.org>
      Date:   Sun Jul 8 15:58:49 2012 -0400
      
          target: replace the processing thread with a TMR work queue
      Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Cc: Christoph Hellwig <hch@lst.de>
      Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
      2962846d
    • Mikulas Patocka's avatar
      dm raid1: set discard_zeroes_data_unsupported · 7c8d3a42
      Mikulas Patocka authored
      We can't guarantee that REQ_DISCARD on dm-mirror zeroes the data even if
      the underlying disks support zero on discard.  So this patch sets
      ti->discard_zeroes_data_unsupported.
      
      For example, if the mirror is in the process of resynchronizing, it may
      happen that kcopyd reads a piece of data, then discard is sent on the
      same area and then kcopyd writes the piece of data to another leg.
      Consequently, the data is not zeroed.
      
      The flag was made available by commit 983c7db3
      (dm crypt: always disable discard_zeroes_data).
      Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
      Cc: stable@kernel.org
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      7c8d3a42
    • Mikulas Patocka's avatar
      dm thin: do not send discards to shared blocks · 650d2a06
      Mikulas Patocka authored
      When process_discard receives a partial discard that doesn't cover a
      full block, it sends this discard down to that block. Unfortunately, the
      block can be shared and the discard would corrupt the other snapshots
      sharing this block.
      
      This patch detects block sharing and ends the discard with success when
      sending it to the shared block.
      
      The above change means that if the device supports discard it can't be
      guaranteed that a discard request zeroes data. Therefore, we set
      ti->discard_zeroes_data_unsupported.
      
      Thin target discard support with this bug arrived in commit
      104655fd (dm thin: support discards).
      Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
      Cc: stable@kernel.org
      Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      650d2a06
    • Mikulas Patocka's avatar
      dm raid1: fix crash with mirror recovery and discard · 751f188d
      Mikulas Patocka authored
      This patch fixes a crash when a discard request is sent during mirror
      recovery.
      
      Firstly, some background.  Generally, the following sequence happens during
      mirror synchronization:
      - function do_recovery is called
      - do_recovery calls dm_rh_recovery_prepare
      - dm_rh_recovery_prepare uses a semaphore to limit the number
        simultaneously recovered regions (by default the semaphore value is 1,
        so only one region at a time is recovered)
      - dm_rh_recovery_prepare calls __rh_recovery_prepare,
        __rh_recovery_prepare asks the log driver for the next region to
        recover. Then, it sets the region state to DM_RH_RECOVERING. If there
        are no pending I/Os on this region, the region is added to
        quiesced_regions list. If there are pending I/Os, the region is not
        added to any list. It is added to the quiesced_regions list later (by
        dm_rh_dec function) when all I/Os finish.
      - when the region is on quiesced_regions list, there are no I/Os in
        flight on this region. The region is popped from the list in
        dm_rh_recovery_start function. Then, a kcopyd job is started in the
        recover function.
      - when the kcopyd job finishes, recovery_complete is called. It calls
        dm_rh_recovery_end. dm_rh_recovery_end adds the region to
        recovered_regions or failed_recovered_regions list (depending on
        whether the copy operation was successful or not).
      
      The above mechanism assumes that if the region is in DM_RH_RECOVERING
      state, no new I/Os are started on this region. When I/O is started,
      dm_rh_inc_pending is called, which increases reg->pending count. When
      I/O is finished, dm_rh_dec is called. It decreases reg->pending count.
      If the count is zero and the region was in DM_RH_RECOVERING state,
      dm_rh_dec adds it to the quiesced_regions list.
      
      Consequently, if we call dm_rh_inc_pending/dm_rh_dec while the region is
      in DM_RH_RECOVERING state, it could be added to quiesced_regions list
      multiple times or it could be added to this list when kcopyd is copying
      data (it is assumed that the region is not on any list while kcopyd does
      its jobs). This results in memory corruption and crash.
      
      There already exist bypasses for REQ_FLUSH requests: REQ_FLUSH requests
      do not belong to any region, so they are always added to the sync list
      in do_writes. dm_rh_inc_pending does not increase count for REQ_FLUSH
      requests. In mirror_end_io, dm_rh_dec is never called for REQ_FLUSH
      requests. These bypasses avoid the crash possibility described above.
      
      These bypasses were improperly implemented for REQ_DISCARD when
      the mirror target gained discard support in commit
      5fc2ffea (dm raid1: support discard).
      
      In do_writes, REQ_DISCARD requests is always added to the sync queue and
      immediately dispatched (even if the region is in DM_RH_RECOVERING).  However,
      dm_rh_inc and dm_rh_dec is called for REQ_DISCARD resusts.  So it violates the
      rule that no I/Os are started on DM_RH_RECOVERING regions, and causes the list
      corruption described above.
      
      This patch changes it so that REQ_DISCARD requests follow the same path
      as REQ_FLUSH. This avoids the crash.
      
      Reference: https://bugzilla.redhat.com/837607Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
      Cc: stable@kernel.org
      Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
      751f188d
    • Kim, Milo's avatar
      regulator: add new lp8788 regulator driver · ade7515f
      Kim, Milo authored
      TI LP8788 PMU has 4 BUCKS and 22 LDOs.
      The voltage of BUCK1 and BUCK2 can be controlled by external gpios.
      And some LDOs also can be enabled by external gpios.
      The regmap interface is used for regulator operations.
      Signed-off-by: default avatarMilo(Woogyom) Kim <milo.kim@ti.com>
      Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
      ade7515f
    • Axel Lin's avatar
      regulator: mc13xxx: Remove extern function declaration for mc13xxx_sw_regulator · c798881e
      Axel Lin authored
      This function does not exist, remove the extern function declaration.
      Signed-off-by: default avatarAxel Lin <axel.lin@gmail.com>
      Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
      c798881e