1. 03 Feb, 2016 11 commits
    • Oliver Neukum's avatar
      usb: no locking for reading descriptors in sysfs · b4a90d04
      Oliver Neukum authored
      Quting the relevant thread:
      
      > In fact, I suspect the locking added by the kernel 3.13 commit for
      > read_descriptors() is invalid because read_descriptors() performs no USB
      > activity; read_descriptors() just reads information from an allocated
      > memory structure. This structure is protected as the structure is
      > existing before and after the sysfs vfs descriptors entry is created or
      > destroyed.
      
      You're right.  For some reason I thought that usb_deauthorize_device()
      would destroy the rawdescriptor structures (as mentioned in that
      commit's Changelog), but it doesn't.  The locking in read_descriptors()
      is unnecessary.
      
      > The information is only written at the time of enumeration
      > and does not change. At least that is my understanding.
      >
      > It is noted that in our testing of kernel 3.8 on ARM, that sysfs
      > read_descriptors() was non-blocking because the kernel 3.13 comment was
      > not there.
      >
      > The pre-kernel 3.13 sysfs read_descriptors() seemed to work OK.
      >
      > Proposal:
      > =========
      >
      > Remove the usb_lock_device(udev) and usb_unlock_device(udev) from
      > devices/usb/core/sysfs.c in read_descriptors() that was added by the
      > kernel 3.13 commit
      > "232275a0 USB: fix substandard locking for the sysfs files"
      >
      > Any comments to this proposal ?
      
      It seems okay to me.  Please submit a patch.
      
      So this removes the locking making the point about -EINTR in
      the first path moot.
      Signed-off-by: default avatarOliver Neukum <oneukum@suse.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      b4a90d04
    • Oliver Neukum's avatar
      usb: sysfs: make locking interruptible · 7dd9cba5
      Oliver Neukum authored
      232275a0 USB: fix substandard locking for the sysfs files
      introduced needed locking into sysfs operations on USB devices
      It, however, uses uninterruptible sleep and if the error
      handling is on extreme cases of sleep lengths of 10s of seconds
      are possible. Unless we are removing the device we should use
      interruptible sleep.
      Signed-off-by: default avatarOliver Neukum <oneukum@suse.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      7dd9cba5
    • Heiner Kallweit's avatar
      usb: core: switch bus numbering to using idr · 5363de75
      Heiner Kallweit authored
      USB bus numbering is based on directly dealing with bitmaps and
      defines a separate list of busses.
      This can be simplified and unified by using existing idr functionality.
      Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      5363de75
    • Mathias Nyman's avatar
      xhci: set slot context speed field to SuperSpeedPlus for USB 3.1 SSP devices · d7854041
      Mathias Nyman authored
      The speed field of the input slot context should represent the speed the
      device is working at.
      Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      d7854041
    • Mathias Nyman's avatar
      xhci: USB 3.1 add default Speed Attributes to SuperSpeedPlus device capability · 5da665fc
      Mathias Nyman authored
      If a xhci controller does not provide a protocol speed ID (PSI) table, a
      default one should be used instead. Add the default values to the
      SuperSpeedPlus device capability. Overwrite the default ones if a PSI table
      exists. See xHCI 1.1 sectio 7.2.2.1.1 for more info
      Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      5da665fc
    • Mathias Nyman's avatar
    • Mathias Nyman's avatar
      xhci: Make sure xhci handles USB_SPEED_SUPER_PLUS devices. · 0caf6b33
      Mathias Nyman authored
      In most cases the devices with the speed set to USB_SPEED_SUPER_PLUS
      are handled like regular SuperSpeed devices.
      Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      0caf6b33
    • Alan Stern's avatar
      USB: EHCI: improvements to unlink_empty_async_suspended() · 8df0d77d
      Alan Stern authored
      unlink_empty_async_suspended() is marked __maybe_unused.  This is
      because its caller, ehci_bus_suspend(), is protected by "#ifdef
      CONFIG_PM".  We should use the same protection here instead of
      __maybe_unused.
      
      unlink_empty_async_suspended() gets called only when the root hub is
      suspended.  It's silly for it to call start_iaa_cycle() at such a
      time; the IAA mechanism doesn't work when the root hub isn't running.
      It should call end_unlink_async() instead.  But even this isn't
      necessary, since there already is a call to end_iaa_cycle() right
      before the call to unlink_empty_async_suspended().  All we have to do
      is interchange the two subroutine calls.
      Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      8df0d77d
    • Alan Stern's avatar
      USB: EHCI: add a delay when unlinking an active QH · 87d61912
      Alan Stern authored
      Michael Reutman reports that an AMD/ATI EHCI host controller on one of
      his computers does not stop transferring data when an active bulk QH
      is unlinked from the async schedule.  Apparently that host controller
      fails to implement the IAA mechanism correctly when an active QH is
      unlinked.  This leads to data corruption, because the controller
      continues to update the QH in memory when the driver doesn't expect
      it.  As a result, the next URB submitted for that QH can hang, because
      the link pointers for the TD queue have been messed up.  This
      misbehavior is observed quite regularly.
      
      To be fair, the EHCI spec (section 4.8.2) says that active QHs should
      not be unlinked.  It goes on to recommend a procedure that involves
      waiting for the QH to go inactive before unlinking it.  In the real
      world this is impractical, not least because the QH may _never_ go
      inactive.  (What were they thinking?)  Sometimes we have no choice but
      to unlink an active QH.
      
      In an attempt to avoid the problems that can ensue, this patch changes
      how the driver decides when the unlink is complete.  In addition to
      waiting through two IAA cycles, in cases where the QH was not known to
      be inactive beforehand we now wait until a 2-ms period has elapsed
      with the host controller making no change to the QH data structure
      (the hw_current and hw_token fields in particular).  The intuition
      here is that after such a long period, the endpoint must be NAKing and
      hopefully the QH has been dropped from the host controller's internal
      cache.  There's no way to know if this reasoning is really valid --
      the spec is no help in this regard -- but at least this approach fixes
      Michael's problem.
      
      The test for whether the QH is already known to be inactive involves
      the reason for unlinking the QH originally.  If it was unlinked
      because it had halted, or it stopped in response to a short read, or
      it overlaid a dummy TD (a silicon bug), then it certainly is inactive.
      If it was unlinked because the TD queue was empty and no TDs have been
      added to the queue in the meantime, then it must be inactive.  Or if
      the hardware status indicates that the QH is currently halted (even if
      that wasn't the reason for unlinking it), then it is inactive.
      Otherwise, if none of those checks apply, we go through the 2-ms
      delay.
      Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
      Reported-by: default avatarMichael Reutman <mreutman@epiqsolutions.com>
      Tested-by: default avatarMichael Reutman <mreutman@epiqsolutions.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      87d61912
    • Alan Stern's avatar
      USB: EHCI: improve handling of the ehci->iaa_in_progress flag · f96fba0d
      Alan Stern authored
      This patch improves the way ehci-hcd handles the iaa_in_progress flag.
      The current code is somewhat careless in this regard:
      
      	The flag is meaningless when the root hub isn't running, most
      	particularly after the root hub has been suspended.  But in
      	start_iaa_cycle(), the driver checks the flag before checking
      	the root hub's state.  They should be checked in the opposite
      	order.
      
      	That routine also sets the flag too early, before it has
      	definitely committed to starting an IAA cycle.
      
      	The flag is turned off in end_unlink_async().  Upcoming
      	changes will call that routine at other times, not just at the
      	end of an IAA cycle.  The two actions are logically separate
      	(although related), so we separate out a new routine to be
      	called in place of end_unlink_async() whenever an IAA cycle
      	ends: end_iaa_cycle().
      
      	iaa_in_progress should be turned off when the root hub is
      	suspended -- we certainly don't want it still to be set when
      	the root hub resumes.  Therefore the call to
      	end_unlink_async() in ehci_bus_suspend() should also be
      	replaced with a call to end_iaa_cycle().
      Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      f96fba0d
    • Alan Stern's avatar
      USB: EHCI: store reason for unlinking a QH · fcc5184e
      Alan Stern authored
      This patch replaces the "exception" bitflag in the ehci_qh structure
      with a more explicit "unlink_reason" bitmask.  This is for use in the
      following patch, where we will need to have a good idea of the
      reason for unlinking a QH, not just "something exceptional happened".
      Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
      Tested-by: default avatarMichael Reutman <mreutman@epiqsolutions.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      fcc5184e
  2. 01 Feb, 2016 8 commits
    • Greg Kroah-Hartman's avatar
      Merge 4.5-rc2 into usb-next · 4f97f8f5
      Greg Kroah-Hartman authored
      We want the USB fixes in here as well.
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      4f97f8f5
    • Linus Torvalds's avatar
      Linux 4.5-rc2 · 36f90b0a
      Linus Torvalds authored
      36f90b0a
    • Linus Torvalds's avatar
      Merge tag 'usb-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · d784ef58
      Linus Torvalds authored
      Pull USB driver fixes from Greg KH:
       "Here are some small USB fixes and new device ids for 4.5-rc2.  Nothing
        major here, full details are in the shortlog, and all of these have
        been in linux-next successfully"
      
      * tag 'usb-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        USB: option: fix Cinterion AHxx enumeration
        USB: mxu11x0: fix memory leak on usb_serial private data
        USB: serial: ftdi_sio: add support for Yaesu SCU-18 cable
        USB: serial: option: Adding support for Telit LE922
        USB: serial: visor: fix crash on detecting device without write_urbs
        USB: visor: fix null-deref at probe
        USB: cp210x: add ID for IAI USB to RS485 adaptor
        usb: hub: do not clear BOS field during reset device
        cdc-acm:exclude Samsung phone 04e8:685d
        usb: cdc-acm: send zero packet for intel 7260 modem
        usb: cdc-acm: handle unlinked urb in acm read callback
      d784ef58
    • Linus Torvalds's avatar
      Merge tag 'tty-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 54e3f3e3
      Linus Torvalds authored
      Pull tty/serial fixes from Greg KH:
       "Here are some small tty/serial driver fixes for 4.5-rc2.
      
        They resolve a number of reported problems (the ioctl one specifically
        has been pointed out by numerous people) and one patch adds some new
        device ids for the 8250_pci driver.  All have been in linux-next
        successfully"
      
      * tag 'tty-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        serial: 8250_pci: Add Intel Broadwell ports
        staging/speakup: Use tty_ldisc_ref() for paste kworker
        n_tty: Fix unsafe reference to "other" ldisc
        tty: Fix unsafe ldisc reference via ioctl(TIOCGETD)
        tty: Retry failed reopen if tty teardown in-progress
        tty: Wait interruptibly for tty lock on reopen
      54e3f3e3
    • Linus Torvalds's avatar
      Merge tag 'staging-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 8c4e378e
      Linus Torvalds authored
      Pull staging fixes from Greg KH:
       "Here are some small staging driver fixes for 4.5-rc2.
      
        One of them predated 4.4-final, but I missed that merge window due to
        the holliday.  The others fix reported issues that have come up
        recently.  The tty change is needed for the speakup driver fix and has
        the ack of the tty driver maintainer as well, i.e.  myself :)
      
        All have been in linux-next with no reported issues"
      
      * tag 'staging-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        Staging: speakup: fix read scrolled-back VT
        Staging: speakup: Fix getting port information
        Revert "Staging: panel: usleep_range is preferred over udelay"
        iio: adis_buffer: Fix out-of-bounds memory access
      8c4e378e
    • Linus Torvalds's avatar
      Merge tag 'driver-core-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core · f3ca903f
      Linus Torvalds authored
      Pull driver core fix from Greg KH:
       "Here's a single driver core fix that resolves an issue a lot of users
        have been hitting for a while now.  It's been tested a lot and has
        been in linux-next successfully for a while"
      
      * tag 'driver-core-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
        base/platform: Fix platform drivers with no probe callback
      f3ca903f
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · 510ae0c9
      Linus Torvalds authored
      Pull MIPS fix from Ralf Baechle:
       "Just a single revert for a patch which I had upstreamed out of
        sequence"
      
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
        Revert "MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function"
      510ae0c9
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d517be5f
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "A bit on the largish side due to a series of fixes for a regression in
        the x86 vector management which was introduced in 4.3.  This work was
        started in December already, but it took some time to fix all corner
        cases and a couple of older bugs in that area which were detected
        while at it
      
        Aside of that a few platform updates for intel-mid, quark and UV and
        two fixes for in the mm code:
         - Use proper types for pgprot values to avoid truncation
         - Prevent a size truncation in the pageattr code when setting page
           attributes for large mappings"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
        x86/mm/pat: Avoid truncation when converting cpa->numpages to address
        x86/mm: Fix types used in pgprot cacheability flags translations
        x86/platform/quark: Print boundaries correctly
        x86/platform/UV: Remove EFI memmap quirk for UV2+
        x86/platform/intel-mid: Join string and fix SoC name
        x86/platform/intel-mid: Enable 64-bit build
        x86/irq: Plug vector cleanup race
        x86/irq: Call irq_force_move_complete with irq descriptor
        x86/irq: Remove outgoing CPU from vector cleanup mask
        x86/irq: Remove the cpumask allocation from send_cleanup_vector()
        x86/irq: Clear move_in_progress before sending cleanup IPI
        x86/irq: Remove offline cpus from vector cleanup
        x86/irq: Get rid of code duplication
        x86/irq: Copy vectormask instead of an AND operation
        x86/irq: Check vector allocation early
        x86/irq: Reorganize the search in assign_irq_vector
        x86/irq: Reorganize the return path in assign_irq_vector
        x86/irq: Do not use apic_chip_data.old_domain as temporary buffer
        x86/irq: Validate that irq descriptor is still active
        x86/irq: Fix a race in x86_vector_free_irqs()
        ...
      d517be5f
  3. 31 Jan, 2016 8 commits
  4. 30 Jan, 2016 5 commits
    • Zhen Lei's avatar
      pid: Fix spelling in comments · 840d6fe7
      Zhen Lei authored
      Accidentally discovered this typo when I studied this module.
      Signed-off-by: default avatarZhen Lei <thunder.leizhen@huawei.com>
      Cc: Hanjun Guo <guohanjun@huawei.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Tianhong Ding <dingtianhong@huawei.com>
      Cc: Xinwei Hu <huxinwei@huawei.com>
      Cc: Zefan Li <lizefan@huawei.com>
      Link: http://lkml.kernel.org/r/1454119457-11272-1-git-send-email-thunder.leizhen@huawei.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      840d6fe7
    • Ingo Molnar's avatar
      Merge tag 'perf-urgent-for-mingo' of... · 28fb8a5b
      Ingo Molnar authored
      Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
      
      Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
      
       - Fix 'perf stat' stddev reporting due to mistakenly cleaning event
         private stats (Jiri Olsa)
      
       - Fix 'perf test CQM' endless loop detected by 'gcc6 -Wmisleading-indentation'
         (Markus Trippelsdorf)
      
       - Fix behaviour of Shift-Tab when nothing is focussed in the annotate TUI browser,
         detected with gcc6 -Wmisleading-indentation (Markus Trippelsdorf)
      
       - Fix mem data cacheline hists browser width setting for unresolved
         addresses (Jiri Olsa)
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      28fb8a5b
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm · ad0b40fa
      Linus Torvalds authored
      Pull ARM fixes from Russell King:
       "Just one fix for a -fstack-protector-strong problem from Kees Cook,
        and adding the new copy_file_range syscall"
      
      * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
        ARM: wire up copy_file_range() syscall
        ARM: 8500/1: fix atags_to_fdt with stack-protector-strong
      ad0b40fa
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · ec1cc55d
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       - Wire up copy_file_range() syscall from Chandan Rajendra
       - Simplify module TOC handling from Alan Modra
       - Remove newly added extra definition of pmd_dirty from Stephen Rothwell
       - Allow user space to map rtas_rmo_buf from Vasant Hegde
       - Fix PE location code from Gavin Shan
       - Remove PPMU_HAS_SSLOT flag for Power8 from Madhavan Srinivasan
       - Fixup _HPAGE_CHG_MASK from Aneesh Kumar K.V
      
      * tag 'powerpc-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/mm: Fixup _HPAGE_CHG_MASK
        powerpc/perf: Remove PPMU_HAS_SSLOT flag for Power8
        powerpc/eeh: Fix PE location code
        powerpc/mm: Allow user space to map rtas_rmo_buf
        powerpc: Remove newly added extra definition of pmd_dirty
        powerpc: Simplify module TOC handling
        powerpc: Wire up copy_file_range() syscall
      ec1cc55d
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 6b292a8a
      Linus Torvalds authored
      Pull s390 updates from Martin Schwidefsky:
       "An optimization for irq-restore, the SSM instruction is quite a bit
        slower than an if-statement and a STOSM.
      
        The copy_file_range system all is added.
      
        Cleanup for PCI and CIO.
      
        And a couple of bug fixes"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        s390/cio: update measurement characteristics
        s390/cio: ensure consistent measurement state
        s390/cio: fix measurement characteristics memleak
        s390/zcrypt: Fix cryptographic device id in kernel messages
        s390/pci: remove iomap sanity checks
        s390/pci: set error state for unusable functions
        s390/pci: fix bar check
        s390/pci: resize iomap
        s390/pci: improve ZPCI_* macros
        s390/pci: provide ZPCI_ADDR macro
        s390/pci: adjust IOMAP_MAX_ENTRIES
        s390/numa: move numa_init_late() from device to arch_initcall
        s390: remove all usages of PSW_ADDR_INSN
        s390: remove all usages of PSW_ADDR_AMODE
        s390: wire up copy_file_range syscall
        s390: remove superfluous memblock_alloc() return value checks
        s390/numa: allocate memory with correct alignment
        s390/irqflags: optimize irq restore
        s390/mm: use TASK_MAX_SIZE where applicable
      6b292a8a
  5. 29 Jan, 2016 8 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · d3f71ae7
      Linus Torvalds authored
      Pull btrfs fixes from Chris Mason:
       "Dave had a small collection of fixes to the new free space tree code,
        one of which was keeping our sysfs files more up to date with feature
        bits as different things get enabled (lzo, raid5/6, etc).
      
        I should have kept the sysfs stuff for rc3, since we always manage to
        trip over something.  This time it was GFP_KERNEL from somewhere that
        is NOFS only.  Instead of rebasing it out I've put a revert in, and
        we'll fix it properly for rc3.
      
        Otherwise, Filipe fixed a btrfs DIO race and Qu Wenruo fixed up a
        use-after-free in our tracepoints that Dave Jones reported"
      
      * 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
        Revert "btrfs: synchronize incompat feature bits with sysfs files"
        btrfs: don't use GFP_HIGHMEM for free-space-tree bitmap kzalloc
        btrfs: sysfs: check initialization state before updating features
        Revert "btrfs: clear PF_NOFREEZE in cleaner_kthread()"
        btrfs: async-thread: Fix a use-after-free error for trace
        Btrfs: fix race between fsync and lockless direct IO writes
        btrfs: add free space tree to the cow-only list
        btrfs: add free space tree to lockdep classes
        btrfs: tweak free space tree bitmap allocation
        btrfs: tests: switch to GFP_KERNEL
        btrfs: synchronize incompat feature bits with sysfs files
        btrfs: sysfs: introduce helper for syncing bits with sysfs files
        btrfs: sysfs: add free-space-tree bit attribute
        btrfs: sysfs: fix typo in compat_ro attribute definition
      d3f71ae7
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 46552e68
      Linus Torvalds authored
      Pull power management and ACPI fixes from Rafael Wysocki:
       "These are: cpuidle fixes (including one fix for a recent regression),
        cpufreq fixes (including fixes for two issues introduced during the
        4.2 cycle), generic power domains framework fixes (two locking fixes
        and one cleanup), one locking fix in the ACPI-based PCI hotplug
        framework (ACPIPHP), removal of one ACPI backlight blacklist entry
        that isn't necessary any more and a PM Kconfig cleanup.
      
        Specifics:
      
         - Fix a recent cpuidle core regression that broke suspend-to-idle on
           all systems where cpuidle drivers don't provide ->enter_freeze
           callbacks for any states (Sudeep Holla).
      
         - Drop an unnecessary symbol definition from the cpuidle core code
           handling coupled CPU cores (Anders Roxell).
      
         - Fix a race condition related to governor initialization and removal
           in the cpufreq core (Viresh Kumar).
      
         - Clean up the cpufreq core to use list_is_last() for checking if the
           given policy object is the last element of a list instead of open
           coding that in a clumsy way (Gautham R Shenoy).
      
         - Fix compiler warnings in the pxa2xx and cpufreq-dt cpufreq drivers
           (Arnd Bergmann).
      
         - Fix two locking issues and clean up a comment in the generic power
           domains framework (Ulf Hansson, Marek Szyprowski, Moritz Fischer).
      
         - Fix the error code path of one function in the ACPI-based PCI
           hotplug framework (ACPIPHP) that forgets to release a lock acquired
           previously (Insu Yun).
      
         - Drop the ACPI backlight blacklist entry for Dell Inspiron 5737 that
           is not necessary any more (Hans de Goede).
      
         - Clean up the top-level PM Kconfig to stop requiring APM emulation
           to depend on PM which in fact isn't necessary (Arnd Bergmann)"
      
      * tag 'pm+acpi-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpufreq: cpufreq-dt: avoid uninitialized variable warnings:
        cpufreq: pxa2xx: fix pxa_cpufreq_change_voltage prototype
        PM: APM_EMULATION does not depend on PM
        cpufreq: Use list_is_last() to check last entry of the policy list
        cpufreq: Fix NULL reference crash while accessing policy->governor_data
        cpuidle: coupled: remove unused define cpuidle_coupled_lock
        PM / Domains: Fix typo in comment
        PM / Domains: Fix potential deadlock while adding/removing subdomains
        ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot()
        ACPI: Revert "ACPI / video: Add Dell Inspiron 5737 to the blacklist"
        cpuidle: fix fallback mechanism for suspend to idle in absence of enter_freeze
        PM / domains: fix lockdep issue for all subdomains
      46552e68
    • Linus Torvalds's avatar
      Merge branch 'stable/for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb · ad233aca
      Linus Torvalds authored
      Pull swiotlb patchlet from Konrad Rzeszutek Wilk:
       "One trivial patch.
      
        Another patch (from Fengguang) is already in your tree courtesy of
        Andrew Morton - but I would prefer not to rebase my tree.  Hence the
        diff is very small"
      
      * 'stable/for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
        swiotlb: Make linux/swiotlb.h standalone includible
        MAINTAINERS: add git URL for swiotlb
      ad233aca
    • Linus Torvalds's avatar
      Merge branch 'stable/for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm · 29737370
      Linus Torvalds authored
      Pull cleancache cleanups from Konrad Rzeszutek Wilk:
       "Simple cleanups"
      
      * 'stable/for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm:
        include/linux/cleancache.h: Clean up code
        cleancache: constify cleancache_ops structure
      29737370
    • Linus Torvalds's avatar
      Merge tag 'iommu-fixes-v4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu · f6a239a9
      Linus Torvalds authored
      Pull IOMMU fixes from Joerg Roedel:
       "Five patches queued up:
      
         - Two patches for the AMD and Intel IOMMU drivers to fix alias
           handling and ATS handling.
      
         - Fix build error with arm io-pgtable code
      
         - Two documentation fixes"
      
      * tag 'iommu-fixes-v4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
        iommu: Update struct iommu_ops comments
        iommu/vt-d: Fix link to Intel IOMMU Specification
        iommu/amd: Correct the wrong setting of alias DTE in do_attach
        iommu/vt-d: Don't skip PCI devices when disabling IOTLB
        iommu/io-pgtable-arm: Fix io-pgtable-arm build failure
      f6a239a9
    • Linus Torvalds's avatar
      Merge tag 'hwmon-for-linus-v4.5-rc2' of... · f51d4d78
      Linus Torvalds authored
      Merge tag 'hwmon-for-linus-v4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
      
      Pull hwmon fixes from Guenter Roeck:
       - Use bit mask to calculate tdp limit in fam15h_power driver
       - Black-list Dell Studio XPS 8000 in dell-smm driver
      
      * tag 'hwmon-for-linus-v4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
        hwmon: (fam15h_power) Add bit masking for tdp_limit
        hwmon: (dell-smm) Blacklist Dell Studio XPS 8000
      f51d4d78
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · a12883f0
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "Four fixes: one to try to fix our repeated intermittent crashes in
        suspend/resume, one to correct a regression in the optimal I/O size
        reporting and a couple for randconfig build failures in the hisi_sas
        driver"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        SCSI: fix crashes in sd and sr runtime PM
        sd: Optimal I/O size is in bytes, not sectors
        hisi_sas: Restrict SCSI_HISI_SAS to arm64
        hisi_sas: SCSI_HISI_SAS should depend on HAS_DMA
      a12883f0
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 13d56990
      Linus Torvalds authored
      Pull block layer fix from Jens Axboe:
       "This just contains the fix for the split issue that we had in -rc1.
      
        It's been well tested at this point, so let's get it in mainline so we
        don't have the same split issue for -rc2"
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        block: fix bio splitting on max sectors
      13d56990