Commit Graph

3396 Commits

Author SHA1 Message Date
Denys Vlasenko
bc27fb68aa include/uapi/linux/byteorder, swab: force inlining of some byteswap operations
Sometimes gcc mysteriously doesn't inline
very small functions we expect to be inlined. See

    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66122

With this .config:
http://busybox.net/~vda/kernel_config_OPTIMIZE_INLINING_and_Os,
the following functions get deinlined many times.
Examples of disassembly:

<get_unaligned_be16> (12 copies, 51 calls):
       66 8b 07                mov    (%rdi),%ax
       55                      push   %rbp
       48 89 e5                mov    %rsp,%rbp
       86 e0                   xchg   %ah,%al
       5d                      pop    %rbp
       c3                      retq

<get_unaligned_be32> (12 copies, 135 calls):
       8b 07                   mov    (%rdi),%eax
       55                      push   %rbp
       48 89 e5                mov    %rsp,%rbp
       0f c8                   bswap  %eax
       5d                      pop    %rbp
       c3                      retq

<get_unaligned_be64> (2 copies, 20 calls):
       48 8b 07                mov    (%rdi),%rax
       55                      push   %rbp
       48 89 e5                mov    %rsp,%rbp
       48 0f c8                bswap  %rax
       5d                      pop    %rbp
       c3                      retq

<__swab16p> (16 copies, 146 calls):
       55                      push   %rbp
       89 f8                   mov    %edi,%eax
       86 e0                   xchg   %ah,%al
       48 89 e5                mov    %rsp,%rbp
       5d                      pop    %rbp
       c3                      retq

<__swab32p> (43 copies, ~560 calls):
       55                      push   %rbp
       89 f8                   mov    %edi,%eax
       0f c8                   bswap  %eax
       48 89 e5                mov    %rsp,%rbp
       5d                      pop    %rbp
       c3                      retq

<__swab64p> (21 copies, 119 calls):
       55                      push   %rbp
       48 89 f8                mov    %rdi,%rax
       48 0f c8                bswap  %rax
       48 89 e5                mov    %rsp,%rbp
       5d                      pop    %rbp
       c3                      retq

<__swab32s> (6 copies, 47 calls):
       8b 07                   mov    (%rdi),%eax
       55                      push   %rbp
       48 89 e5                mov    %rsp,%rbp
       0f c8                   bswap  %eax
       89 07                   mov    %eax,(%rdi)
       5d                      pop    %rbp
       c3                      retq

This patch fixes this via s/inline/__always_inline/.
Code size decrease after the patch is ~4.5k:

    text     data      bss       dec     hex filename
92202377 20826112 36417536 149446025 8e85d89 vmlinux
92197848 20826112 36417536 149441496 8e84bd8 vmlinux5_swap_after

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-17 15:09:34 -07:00
Rob Landley
faeb50b98a include/uapi/linux/elf-em.h: remove v850
The v850 port was removed by commits f606ddf42f and 07a887d399 in
2008.  These #defines are not used in the current kernel.

Signed-off-by: Rob Landley <rob@landley.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-17 15:09:34 -07:00
Igor Redko
5057dcd0f1 virtio_balloon: export 'available' memory to balloon statistics
Add a new field, VIRTIO_BALLOON_S_AVAIL, to virtio_balloon memory
statistics protocol, corresponding to 'Available' in /proc/meminfo.

It indicates to the hypervisor how big the balloon can be inflated
without pushing the guest system to swap.

Signed-off-by: Igor Redko <redkoi@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-17 15:09:34 -07:00
Linus Torvalds
48d10bda1f USB patches for 4.6-rc1
Here is the big USB patchset for 4.6-rc1.
 
 The normal mess is here, gadget and xhci fixes and updates, and lots of
 other driver updates and cleanups as well.  Full details are in the
 shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here is the big USB patchset for 4.6-rc1.

  The normal mess is here, gadget and xhci fixes and updates, and lots
  of other driver updates and cleanups as well.  Full details are in the
  shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'usb-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (266 commits)
  USB: core: let USB device know device node
  usb: devio: Add ioctl to disallow detaching kernel USB drivers.
  usb: gadget: f_acm: Fix configfs attr name
  usb: udc: lpc32xx: remove USB PLL and USB OTG clock management
  usb: udc: lpc32xx: remove direct access to clock controller registers
  usb: udc: lpc32xx: switch to clock prepare/unprepare model
  usb: renesas_usbhs: gadget: fix giveback status code in usbhsg_pipe_disable()
  usb: gadget: renesas_usb3: Use ARCH_RENESAS
  usb: dwc2: Fix issues in dwc2_complete_non_isoc_xfer_ddma()
  usb: dwc2: Add support for Lantiq ARX and XRX SoCs
  usb: phy: generic: Handle late registration of gadget
  usb: gadget: bdc_udc: fix race condition in bdc_udc_exit()
  usb: musb: core: added missing const qualifier to musb_hdrc_platform_data::config
  usb: dwc2: Move host-specific core functions into hcd.c
  usb: dwc2: Move register save and restore functions
  usb: dwc2: Use kmem_cache_free()
  usb: dwc2: host: If using uframe scheduler, end splits better
  usb: dwc2: host: Totally redo the microframe scheduler
  usb: dwc2: host: Properly set even/odd frame
  usb: dwc2: host: Add dwc2_hcd_get_future_frame_number() call
  ...
2016-03-17 14:24:26 -07:00
Linus Torvalds
96b9b1c956 TTY/Serial patches for 4.6-rc1
Here's the big tty/serial driver pull request for 4.6-rc1.
 
 Lots of changes in here, Peter has been on a tear again, with lots of
 refactoring and bugs fixes, many thanks to the great work he has been
 doing.  Lots of driver updates and fixes as well, full details in the
 shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here's the big tty/serial driver pull request for 4.6-rc1.

  Lots of changes in here, Peter has been on a tear again, with lots of
  refactoring and bugs fixes, many thanks to the great work he has been
  doing.  Lots of driver updates and fixes as well, full details in the
  shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'tty-4.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (220 commits)
  serial: 8250: describe CONFIG_SERIAL_8250_RSA
  serial: samsung: optimize UART rx fifo access routine
  serial: pl011: add mark/space parity support
  serial: sa1100: make sa1100_register_uart_fns a function
  tty: serial: 8250: add MOXA Smartio MUE boards support
  serial: 8250: convert drivers to use up_to_u8250p()
  serial: 8250/mediatek: fix building with SERIAL_8250=m
  serial: 8250/ingenic: fix building with SERIAL_8250=m
  serial: 8250/uniphier: fix modular build
  Revert "drivers/tty/serial: make 8250/8250_ingenic.c explicitly non-modular"
  Revert "drivers/tty/serial: make 8250/8250_mtk.c explicitly non-modular"
  serial: mvebu-uart: initial support for Armada-3700 serial port
  serial: mctrl_gpio: Add missing module license
  serial: ifx6x60: avoid uninitialized variable use
  tty/serial: at91: fix bad offset for UART timeout register
  tty/serial: at91: restore dynamic driver binding
  serial: 8250: Add hardware dependency to RT288X option
  TTY, devpts: document pty count limiting
  tty: goldfish: support platform_device with id -1
  drivers: tty: goldfish: Add device tree bindings
  ...
2016-03-17 13:53:25 -07:00
Linus Torvalds
45cb5230f8 VFIO updates for v4.6-rc1
Various enablers for assignment of Intel graphics devices and future
 support of vGPU devices (Alex Williamson).  This includes
 
  - Handling the vfio type1 interface as an API rather than a specific
    implementation, allowing multiple type1 providers.
 
  - Capability chains, similar to PCI device capabilities, that allow
    extending ioctls.  Extensions here include device specific regions
    and sparse mmap descriptions.  The former is used to expose non-PCI
    regions for IGD, including the OpRegion (particularly the Video
    BIOS Table), and read only PCI config access to the host and LPC
    bridge as drivers often depend on identifying those devices.
    Sparse mmaps here are used to describe the MSIx vector table,
    which vfio has always protected from mmap, but never had an API to
    explicitly define that protection.  In future vGPU support this is
    expected to allow the description of PCI BARs that may mix direct
    access and emulated access within a single region.
 
  - The ability to expose the shadow ROM as an option ROM as IGD use
    cases may rely on the ROM even though the physical device does not
    make use of a PCI option ROM BAR.
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Merge tag 'vfio-v4.6-rc1' of git://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:
 "Various enablers for assignment of Intel graphics devices and future
  support of vGPU devices (Alex Williamson).  This includes

   - Handling the vfio type1 interface as an API rather than a specific
     implementation, allowing multiple type1 providers.

   - Capability chains, similar to PCI device capabilities, that allow
     extending ioctls.  Extensions here include device specific regions
     and sparse mmap descriptions.  The former is used to expose non-PCI
     regions for IGD, including the OpRegion (particularly the Video
     BIOS Table), and read only PCI config access to the host and LPC
     bridge as drivers often depend on identifying those devices.

     Sparse mmaps here are used to describe the MSIx vector table, which
     vfio has always protected from mmap, but never had an API to
     explicitly define that protection.  In future vGPU support this is
     expected to allow the description of PCI BARs that may mix direct
     access and emulated access within a single region.

   - The ability to expose the shadow ROM as an option ROM as IGD use
     cases may rely on the ROM even though the physical device does not
     make use of a PCI option ROM BAR"

* tag 'vfio-v4.6-rc1' of git://github.com/awilliam/linux-vfio:
  vfio/pci: return -EFAULT if copy_to_user fails
  vfio/pci: Expose shadow ROM as PCI option ROM
  vfio/pci: Intel IGD host and LCP bridge config space access
  vfio/pci: Intel IGD OpRegion support
  vfio/pci: Enable virtual register in PCI config space
  vfio/pci: Add infrastructure for additional device specific regions
  vfio: Define device specific region type capability
  vfio/pci: Include sparse mmap capability for MSI-X table regions
  vfio: Define sparse mmap capability for regions
  vfio: Add capability chain helpers
  vfio: Define capability chains
  vfio: If an IOMMU backend fails, keep looking
  vfio/pci: Fix unsigned comparison overflow
2016-03-17 13:05:09 -07:00
Linus Torvalds
bace3db5da media updates for v4.6-rc1
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Merge tag 'media/v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 - Added support for some new video formats
 - mn88473 DVB frontend driver got promoted from staging
 - several improvements at the VSP1 driver
 - several cleanups and improvements at the Media Controller
 - added Media Controller support to snd-usb-audio.  Currently, enabled
   only for au0828-based V4L2/DVB boards
 - Several improvements at nuvoton-cir: it now supports wake up codes
 - Add media controller support to em28xx and saa7134 drivers
 - coda driver now accepts NXP distributed firmware files
 - Some legacy SoC camera drivers will be moving to staging, as they're
   outdated and nobody so far is willing to fix and convert them to use
   the current media framework
 - As usual, lots of cleanups, improvements and new board additions.

* tag 'media/v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (381 commits)
  media: au0828 disable tuner to demod link in au0828_media_device_register()
  [media] touptek: cast char types on %x printk
  [media] touptek: don't DMA at the stack
  [media] mceusb: use %*ph for small buffer dumps
  [media] v4l: exynos4-is: Drop unneeded check when setting up fimc-lite links
  [media] v4l: vsp1: Check if an entity is a subdev with the right function
  [media] hide unused functions for !MEDIA_CONTROLLER
  [media] em28xx: fix Terratec Grabby AC97 codec detection
  [media] media: add prefixes to interface types
  [media] media: rc: nuvoton: switch attribute wakeup_data to text
  [media] v4l2-ioctl: fix YUV422P pixel format description
  [media] media: fix null pointer dereference in v4l_vb2q_enable_media_source()
  [media] v4l2-mc.h: fix yet more compiler errors
  [media] staging/media: add missing TODO files
  [media] media.h: always start with 1 for the audio entities
  [media] sound/usb: Use meaninful names for goto labels
  [media] v4l2-mc.h: fix compiler warnings
  [media] media: au0828 audio mixer isn't connected to decoder
  [media] sound/usb: Use Media Controller API to share media resources
  [media] dw2102: add support for TeVii S662
  ...
2016-03-16 18:27:32 -07:00
Linus Torvalds
8759957b77 libnvdimm for 4.6
1/ Asynchronous address range scrub:
 Given the capacities of next generation persistent memory devices a
 scrub operation to find all poison may take 10s of seconds.  We want
 this scrub work to be done asynchronously with the rest of system
 initialization, so we move it out of line from the NFIT probing, i.e.
 acpi_nfit_add().
 
 2/ Clear poison:
 ACPI 6.1 introduces the ability to send "clear error" commands to the
 ACPI0012:00 device representing the root of an "nvdimm bus".  Similar to
 relocating a bad block on a disk, this support clears media errors in
 response to a write.
 
 3/ Persistent memory resource tracking:
 A persistent memory range may be designated as simply "reserved" by
 platform firmware in the efi/e820 memory map.  Later when the NFIT
 driver loads it discovers that the range is "Persistent Memory".  The
 NFIT bus driver inserts a resource to advertise that "persistent"
 attribute in the system resource tree for /proc/iomem and
 kernel-internal usages.
 
 4/ Miscellaneous cleanups and fixes:
 Workaround section misaligned pmem ranges when allocating a struct page
 memmap, fix handling of the read-only case in the ioctl path, and clean
 up block device major number allocation.
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Merge tag 'libnvdimm-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm updates from Dan Williams:

 - Asynchronous address range scrub:

     Given the capacities of next generation persistent memory devices a
     scrub operation to find all poison may take 10s of seconds.  We
     want this scrub work to be done asynchronously with the rest of
     system initialization, so we move it out of line from the NFIT
     probing, i.e. acpi_nfit_add().

 - Clear poison:

     ACPI 6.1 introduces the ability to send "clear error" commands to
     the ACPI0012:00 device representing the root of an "nvdimm bus".
     Similar to relocating a bad block on a disk, this support clears
     media errors in response to a write.

 - Persistent memory resource tracking:

     A persistent memory range may be designated as simply "reserved" by
     platform firmware in the efi/e820 memory map.  Later when the NFIT
     driver loads it discovers that the range is "Persistent Memory".

     The NFIT bus driver inserts a resource to advertise that
     "persistent" attribute in the system resource tree for /proc/iomem
     and kernel-internal usages.

 - Miscellaneous cleanups and fixes:

     Workaround section misaligned pmem ranges when allocating a struct
     page memmap, fix handling of the read-only case in the ioctl path,
     and clean up block device major number allocation.

* tag 'libnvdimm-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (26 commits)
  libnvdimm, pmem: clear poison on write
  libnvdimm, pmem: fix kmap_atomic() leak in error path
  nvdimm/btt: don't allocate unused major device number
  nvdimm/blk: don't allocate unused major device number
  pmem: don't allocate unused major device number
  ACPI: Change NFIT driver to insert new resource
  resource: Export insert_resource and remove_resource
  resource: Add remove_resource interface
  resource: Change __request_region to inherit from immediate parent
  libnvdimm, pmem: fix ia64 build, use PHYS_PFN
  nfit, libnvdimm: clear poison command support
  libnvdimm, pfn: 'resource'-address and 'size' attributes for pfn devices
  libnvdimm, pmem: adjust for section collisions with 'System RAM'
  libnvdimm, pmem: fix 'pfn' support for section-misaligned namespaces
  libnvdimm: Fix security issue with DSM IOCTL.
  libnvdimm: Clean-up access mode check.
  tools/testing/nvdimm: expand ars unit testing
  nfit: disable userspace initiated ars during scrub
  nfit: scrub and register regions in a workqueue
  nfit, libnvdimm: async region scrub workqueue
  ...
2016-03-16 17:45:56 -07:00
Linus Torvalds
271ecc5253 Merge branch 'akpm' (patches from Andrew)
Merge first patch-bomb from Andrew Morton:

 - some misc things

 - ofs2 updates

 - about half of MM

 - checkpatch updates

 - autofs4 update

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (120 commits)
  autofs4: fix string.h include in auto_dev-ioctl.h
  autofs4: use pr_xxx() macros directly for logging
  autofs4: change log print macros to not insert newline
  autofs4: make autofs log prints consistent
  autofs4: fix some white space errors
  autofs4: fix invalid ioctl return in autofs4_root_ioctl_unlocked()
  autofs4: fix coding style line length in autofs4_wait()
  autofs4: fix coding style problem in autofs4_get_set_timeout()
  autofs4: coding style fixes
  autofs: show pipe inode in mount options
  kallsyms: add support for relative offsets in kallsyms address table
  kallsyms: don't overload absolute symbol type for percpu symbols
  x86: kallsyms: disable absolute percpu symbols on !SMP
  checkpatch: fix another left brace warning
  checkpatch: improve UNSPECIFIED_INT test for bare signed/unsigned uses
  checkpatch: warn on bare unsigned or signed declarations without int
  checkpatch: exclude asm volatile from complex macro check
  mm: memcontrol: drop unnecessary lru locking from mem_cgroup_migrate()
  mm: migrate: consolidate mem_cgroup_migrate() calls
  mm/compaction: speed up pageblock_pfn_to_page() when zone is contiguous
  ...
2016-03-16 11:51:08 -07:00
Faisal Latif
b493d91d33 iwcm: common code for port mapper
moved port mapper related code from drivers into common code

Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Tatyana E. Nikolova <tatyana.e.nikolova@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-03-16 13:47:52 -04:00
Linus Torvalds
10dc374766 One of the largest releases for KVM... Hardly any generic improvement,
but lots of architecture-specific changes.
 
 * ARM:
 - VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
 - PMU support for guests
 - 32bit world switch rewritten in C
 - various optimizations to the vgic save/restore code.
 
 * PPC:
 - enabled KVM-VFIO integration ("VFIO device")
 - optimizations to speed up IPIs between vcpus
 - in-kernel handling of IOMMU hypercalls
 - support for dynamic DMA windows (DDW).
 
 * s390:
 - provide the floating point registers via sync regs;
 - separated instruction vs. data accesses
 - dirty log improvements for huge guests
 - bugfixes and documentation improvements.
 
 * x86:
 - Hyper-V VMBus hypercall userspace exit
 - alternative implementation of lowest-priority interrupts using vector
 hashing (for better VT-d posted interrupt support)
 - fixed guest debugging with nested virtualizations
 - improved interrupt tracking in the in-kernel IOAPIC
 - generic infrastructure for tracking writes to guest memory---currently
 its only use is to speedup the legacy shadow paging (pre-EPT) case, but
 in the future it will be used for virtual GPUs as well
 - much cleanup (LAPIC, kvmclock, MMU, PIT), including ubsan fixes.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "One of the largest releases for KVM...  Hardly any generic
  changes, but lots of architecture-specific updates.

  ARM:
   - VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
   - PMU support for guests
   - 32bit world switch rewritten in C
   - various optimizations to the vgic save/restore code.

  PPC:
   - enabled KVM-VFIO integration ("VFIO device")
   - optimizations to speed up IPIs between vcpus
   - in-kernel handling of IOMMU hypercalls
   - support for dynamic DMA windows (DDW).

  s390:
   - provide the floating point registers via sync regs;
   - separated instruction vs.  data accesses
   - dirty log improvements for huge guests
   - bugfixes and documentation improvements.

  x86:
   - Hyper-V VMBus hypercall userspace exit
   - alternative implementation of lowest-priority interrupts using
     vector hashing (for better VT-d posted interrupt support)
   - fixed guest debugging with nested virtualizations
   - improved interrupt tracking in the in-kernel IOAPIC
   - generic infrastructure for tracking writes to guest
     memory - currently its only use is to speedup the legacy shadow
     paging (pre-EPT) case, but in the future it will be used for
     virtual GPUs as well
   - much cleanup (LAPIC, kvmclock, MMU, PIT), including ubsan fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (217 commits)
  KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch
  KVM: x86: disable MPX if host did not enable MPX XSAVE features
  arm64: KVM: vgic-v3: Only wipe LRs on vcpu exit
  arm64: KVM: vgic-v3: Reset LRs at boot time
  arm64: KVM: vgic-v3: Do not save an LR known to be empty
  arm64: KVM: vgic-v3: Save maintenance interrupt state only if required
  arm64: KVM: vgic-v3: Avoid accessing ICH registers
  KVM: arm/arm64: vgic-v2: Make GICD_SGIR quicker to hit
  KVM: arm/arm64: vgic-v2: Only wipe LRs on vcpu exit
  KVM: arm/arm64: vgic-v2: Reset LRs at boot time
  KVM: arm/arm64: vgic-v2: Do not save an LR known to be empty
  KVM: arm/arm64: vgic-v2: Move GICH_ELRSR saving to its own function
  KVM: arm/arm64: vgic-v2: Save maintenance interrupt state only if required
  KVM: arm/arm64: vgic-v2: Avoid accessing GICH registers
  KVM: s390: allocate only one DMA page per VM
  KVM: s390: enable STFLE interpretation only if enabled for the guest
  KVM: s390: wake up when the VCPU cpu timer expires
  KVM: s390: step the VCPU timer while in enabled wait
  KVM: s390: protect VCPU cpu timer with a seqcount
  KVM: s390: step VCPU cpu timer during kvm_run ioctl
  ...
2016-03-16 09:55:35 -07:00
Dave Airlie
1a4be38a3a Merge tag 'topic/drm-misc-2016-03-14' of git://anongit.freedesktop.org/drm-intel into drm-next
* tag 'topic/drm-misc-2016-03-14' of git://anongit.freedesktop.org/drm-intel: (27 commits)
  drm: atomic helper: do not unreference error pointer
  drm/edid: Extract SADs properly from multiple audio data blocks
  drm: fix blob pointer check
  drm: introduce pipe color correction properties
  drm/atomic: Clean up update_connector_routing.
  drm/atomic: Clean up steal_encoder, v2.
  drm/atomic: Handle encoder assignment conflicts in a separate check, v3.
  drm/atomic: Handle encoder stealing from set_config better.
  drm/atomic: Always call steal_encoder, v2.
  drm/ast: removed optional dummy crtc mode_fixup function.
  drm/bochs: removed optional dummy crtc mode_fixup function.
  drm/fsl-dcu: removed optional dummy crtc mode_fixup function.
  drm/virtio: removed optional dummy crtc mode_fixup function.
  drm/nouveau/dispnv04: removed optional dummy crtc mode_fixup function.
  drm/atmel-hlcdc: remove optional dummy crtc mode_fixup function.
  drm/sti: removed optional dummy crtc mode_fixup function.
  drm/shmobile: removed optional dummy crtc mode_fixup function.
  drm/msm/mdp: removed optional dummy crtc mode_fixup function.
  drm/omapdrm: removed optional dummy crtc mode_fixup function.
  drm/rcar-du: removed optional dummy crtc mode_fixup function.
  ...
2016-03-16 11:09:26 +10:00
Ian Kent
0266725ad4 autofs4: fix some white space errors
Fix some white space format errors.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-15 16:55:16 -07:00
Ian Kent
e9a7c2f1a5 autofs4: coding style fixes
Try and make the coding style completely consistent throughtout the
autofs module and inline with kernel coding style recommendations.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-03-15 16:55:16 -07:00
Dmitry Torokhov
245f0db0de Linux 4.5
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Merge tag 'v4.5' into next

Merge with Linux 4.5 to get PROPERTY_ENTRY_INTEGER() that is needed to
fix pxa/raumfeld rotary encoder properties.
2016-03-15 16:54:45 -07:00
Linus Torvalds
8a284c062e Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "The timer department delivers this time:

   - Support for cross clock domain timestamps in the core code plus a
     first user.  That allows more precise timestamping for PTP and
     later for audio and other peripherals.

     The ptp/e1000e patches have been acked by the relevant maintainers
     and are carried in the timer tree to avoid merge ordering issues.

   - Support for unregistering the current clocksource watchdog.  That
     lifts a limitation for switching clocksources which has been there
     from day 1

   - The usual pile of fixes and updates to the core and the drivers.
     Nothing outstanding and exciting"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
  time/timekeeping: Work around false positive GCC warning
  e1000e: Adds hardware supported cross timestamp on e1000e nic
  ptp: Add PTP_SYS_OFFSET_PRECISE for driver crosstimestamping
  x86/tsc: Always Running Timer (ART) correlated clocksource
  hrtimer: Revert CLOCK_MONOTONIC_RAW support
  time: Add history to cross timestamp interface supporting slower devices
  time: Add driver cross timestamp interface for higher precision time synchronization
  time: Remove duplicated code in ktime_get_raw_and_real()
  time: Add timekeeping snapshot code capturing system time and counter
  time: Add cycles to nanoseconds translation
  jiffies: Use CLOCKSOURCE_MASK instead of constant
  clocksource: Introduce clocksource_freq2mult()
  clockevents/drivers/exynos_mct: Implement ->set_state_oneshot_stopped()
  clockevents/drivers/arm_global_timer: Implement ->set_state_oneshot_stopped()
  clockevents/drivers/arm_arch_timer: Implement ->set_state_oneshot_stopped()
  clocksource/drivers/arm_global_timer: Register delay timer
  clocksource/drivers/lpc32xx: Support timer-based ARM delay
  clocksource/drivers/lpc32xx: Support periodic mode
  clocksource/drivers/lpc32xx: Don't use the prescaler counter for clockevents
  clocksource/drivers/rockchip: Add err handle for rk_timer_init
  ...
2016-03-15 12:13:56 -07:00
Mauro Carvalho Chehab
8331c055b2 Merge commit '840f5b0572ea' into v4l_for_linus
* commit '840f5b0572ea': (381 commits)
  media: au0828 disable tuner to demod link in au0828_media_device_register()
  [media] touptek: cast char types on %x printk
  [media] touptek: don't DMA at the stack
  [media] mceusb: use %*ph for small buffer dumps
  [media] v4l: exynos4-is: Drop unneeded check when setting up fimc-lite links
  [media] v4l: vsp1: Check if an entity is a subdev with the right function
  [media] hide unused functions for !MEDIA_CONTROLLER
  [media] em28xx: fix Terratec Grabby AC97 codec detection
  [media] media: add prefixes to interface types
  [media] media: rc: nuvoton: switch attribute wakeup_data to text
  [media] v4l2-ioctl: fix YUV422P pixel format description
  [media] media: fix null pointer dereference in v4l_vb2q_enable_media_source()
  [media] v4l2-mc.h: fix yet more compiler errors
  [media] staging/media: add missing TODO files
  [media] media.h: always start with 1 for the audio entities
  [media] sound/usb: Use meaninful names for goto labels
  [media] v4l2-mc.h: fix compiler warnings
  [media] media: au0828 audio mixer isn't connected to decoder
  [media] sound/usb: Use Media Controller API to share media resources
  [media] dw2102: add support for TeVii S662
  ...
2016-03-15 07:48:28 -03:00
David S. Miller
1cdba55055 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
Netfilter/IPVS/OVS updates for net-next

The following patchset contains Netfilter/IPVS fixes and OVS NAT
support, more specifically this batch is composed of:

1) Fix a crash in ipset when performing a parallel flush/dump with
   set:list type, from Jozsef Kadlecsik.

2) Make sure NFACCT_FILTER_* netlink attributes are in place before
   accessing them, from Phil Turnbull.

3) Check return error code from ip_vs_fill_iph_skb_off() in IPVS SIP
   helper, from Arnd Bergmann.

4) Add workaround to IPVS to reschedule existing connections to new
   destination server by dropping the packet and wait for retransmission
   of TCP syn packet, from Julian Anastasov.

5) Allow connection rescheduling in IPVS when in CLOSE state, also
   from Julian.

6) Fix wrong offset of SIP Call-ID in IPVS helper, from Marco Angaroni.

7) Validate IPSET_ATTR_ETHER netlink attribute length, from Jozsef.

8) Check match/targetinfo netlink attribute size in nft_compat,
   patch from Florian Westphal.

9) Check for integer overflow on 32-bit systems in x_tables, from
   Florian Westphal.

Several patches from Jarno Rajahalme to prepare the introduction of
NAT support to OVS based on the Netfilter infrastructure:

10) Schedule IP_CT_NEW_REPLY definition for removal in
    nf_conntrack_common.h.

11) Simplify checksumming recalculation in nf_nat.

12) Add comments to the openvswitch conntrack code, from Jarno.

13) Update the CT state key only after successful nf_conntrack_in()
    invocation.

14) Find existing conntrack entry after upcall.

15) Handle NF_REPEAT case due to templates in nf_conntrack_in().

16) Call the conntrack helper functions once the conntrack has been
    confirmed.

17) And finally, add the NAT interface to OVS.

The batch closes with:

18) Cleanup to use spin_unlock_wait() instead of
    spin_lock()/spin_unlock(), from Nicholas Mc Guire.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-14 22:10:25 -04:00
Jarno Rajahalme
05752523e5 openvswitch: Interface with NAT.
Extend OVS conntrack interface to cover NAT.  New nested
OVS_CT_ATTR_NAT attribute may be used to include NAT with a CT action.
A bare OVS_CT_ATTR_NAT only mangles existing and expected connections.
If OVS_NAT_ATTR_SRC or OVS_NAT_ATTR_DST is included within the nested
attributes, new (non-committed/non-confirmed) connections are mangled
according to the rest of the nested attributes.

The corresponding OVS userspace patch series includes test cases (in
tests/system-traffic.at) that also serve as example uses.

This work extends on a branch by Thomas Graf at
https://github.com/tgraf/ovs/tree/nat.

Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-03-14 23:47:29 +01:00
Jarno Rajahalme
bfa3f9d7f3 netfilter: Remove IP_CT_NEW_REPLY definition.
Remove the definition of IP_CT_NEW_REPLY from the kernel as it does
not make sense.  This allows the definition of IP_CT_NUMBER to be
simplified as well.

Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-03-14 23:47:27 +01:00
Martin KaFai Lau
a44d6eacda tcp: Add RFC4898 tcpEStatsPerfDataSegsOut/In
Per RFC4898, they count segments sent/received
containing a positive length data segment (that includes
retransmission segments carrying data).  Unlike
tcpi_segs_out/in, tcpi_data_segs_out/in excludes segments
carrying no data (e.g. pure ack).

The patch also updates the segs_in in tcp_fastopen_add_skb()
so that segs_in >= data_segs_in property is kept.

Together with retransmission data, tcpi_data_segs_out
gives a better signal on the rxmit rate.

v6: Rebase on the latest net-next

v5: Eric pointed out that checking skb->len is still needed in
tcp_fastopen_add_skb() because skb can carry a FIN without data.
Hence, instead of open coding segs_in and data_segs_in, tcp_segs_in()
helper is used.  Comment is added to the fastopen case to explain why
segs_in has to be reset and tcp_segs_in() has to be called before
__skb_pull().

v4: Add comment to the changes in tcp_fastopen_add_skb()
and also add remark on this case in the commit message.

v3: Add const modifier to the skb parameter in tcp_segs_in()

v2: Rework based on recent fix by Eric:
commit a9d99ce28e ("tcp: fix tcpi_segs_in after connection establishment")

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Cc: Chris Rapier <rapier@psc.edu>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Marcelo Ricardo Leitner <mleitner@redhat.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-14 14:55:26 -04:00
Takashi Iwai
ca80e26a59 ASoC: Updates for v4.6
The main thing in terms of the core this time around has been some
 additional framework work for dynamic topologies (though we *still*
 don't appear to have a stable ABI for the topology code, it's probably
 worth considering if this will ever happen...).  Otherwise the work has
 almost all been in the drivers:
 
  - HDMI support for Sky Lake, along with other fixes and enhancements
    for the Intel drivers.
  - Lots of improvements to the Renesas drivers.
  - Capture support for Qualcomm drivers.
  - Support for TI DaVinci DRA7xxx devices.
  - New machine drivers for Freescale systems with Cirrus CODECs,
    Mediatek systems with RT5650 CODECs.
  - New CPU drivers for Allwinner S/PDIF controllers
  - New CODEC drivers for Maxim MAX9867 and MAX98926 and Realtek RT5514.
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Merge tag 'asoc-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v4.6

The main thing in terms of the core this time around has been some
additional framework work for dynamic topologies (though we *still*
don't appear to have a stable ABI for the topology code, it's probably
worth considering if this will ever happen...).  Otherwise the work has
almost all been in the drivers:

 - HDMI support for Sky Lake, along with other fixes and enhancements
   for the Intel drivers.
 - Lots of improvements to the Renesas drivers.
 - Capture support for Qualcomm drivers.
 - Support for TI DaVinci DRA7xxx devices.
 - New machine drivers for Freescale systems with Cirrus CODECs,
   Mediatek systems with RT5650 CODECs.
 - New CPU drivers for Allwinner S/PDIF controllers
 - New CODEC drivers for Maxim MAX9867 and MAX98926 and Realtek RT5514.
2016-03-14 14:03:29 +01:00
Sabrina Dubroca
dece8d2b78 uapi: add MACsec bits
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-13 22:40:24 -04:00
Zhang Shengju
136ba622de netconf: add macro to represent all attributes
This patch adds macro NETCONFA_ALL to represent all type of netconf
attributes for IPv4 and IPv6.

Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-13 21:54:44 -04:00
Dave Airlie
c3d7a1d1e6 Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: add DRM_EXYNOS_GEM_MAP ioctl
2016-03-14 09:46:46 +10:00
Dave Airlie
9b61c0fcdf Merge drm-fixes into drm-next.
Nouveau wanted this to avoid some worse conflicts when I merge that.
2016-03-14 09:46:02 +10:00
Joonyoung Shim
6564c65f3a drm/exynos: add DRM_EXYNOS_GEM_MAP ioctl
The commit d931589c01 ("drm/exynos: remove DRM_EXYNOS_GEM_MAP_OFFSET
ioctl") removed it same with the ioctl that this patch adds. The reason
that removed DRM_EXYNOS_GEM_MAP_OFFSET was we could use
DRM_IOCTL_MODE_MAP_DUMB. Both did exactly same thing.

Now we again will revive it as DRM_EXYNOS_GEM_MAP because of render
node. DRM_IOCTL_MODE_MAP_DUMB isn't permitted in render node.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-13 14:54:03 +09:00
Linus Torvalds
95f41fb203 media fixes for v4.5-rc8
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Merge tag 'media/v4.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fix from Mauro Carvalho Chehab:
 "One last time fix: It adds a code that prevents some media tools like
  media-ctl to hide some entities that have their IDs out of the range
  expected by those apps"

* tag 'media/v4.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] media-device: map new functions into old types for legacy API
2016-03-11 12:32:02 -08:00
Daniel Borkmann
4018ab1875 bpf: support flow label for bpf_skb_{set, get}_tunnel_key
This patch extends bpf_tunnel_key with a tunnel_label member, that maps
to ip_tunnel_key's label so underlying backends like vxlan and geneve
can propagate the label to udp_tunnel6_xmit_skb(), where it's being set
in the IPv6 header. It allows for having 20 more bits to encode/decode
flow related meta information programmatically. Tested with vxlan and
geneve.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-11 15:14:27 -05:00
Daniel Borkmann
8eb3b99554 geneve: support setting IPv6 flow label
This work adds support for setting the IPv6 flow label for geneve per
device and through collect metadata (ip_tunnel_key) frontends. Also here,
the geneve dst cache does not need any special considerations, for the
cases where caches can be used, the label is static per cache.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-11 15:14:27 -05:00
Daniel Borkmann
e7f70af111 vxlan: support setting IPv6 flow label
This work adds support for setting the IPv6 flow label for vxlan per
device and through collect metadata (ip_tunnel_key) frontends. The
vxlan dst cache does not need any special considerations here, for
the cases where caches can be used, the label is static per cache.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-11 15:14:26 -05:00
Dmitry Torokhov
62d5bdf972 Merge branch 'synaptics-rmi4' into next
Bring in support for devices using Synaptics RMI4 protocol, including
RMI4 bus, 2D sensor and button handlers, and SPI and I2C interface
drivers.
2016-03-11 09:51:25 -08:00
Sheng Yang
32c76de346 target/user: Report capability of handling out-of-order completions to userspace
TCMU_MAILBOX_FLAG_CAP_OOOC was introduced, and userspace can check the flag
for out-of-order completion capability support.

Also update the document on how to use the feature.

Signed-off-by: Sheng Yang <sheng@yasker.org>
Reviewed-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2016-03-10 21:49:09 -08:00
Jason Wang
0308813724 vhost_net: basic polling support
This patch tries to poll for new added tx buffer or socket receive
queue for a while at the end of tx/rx processing. The maximum time
spent on polling were specified through a new kind of vring ioctl.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-03-11 02:18:53 +02:00
Andrew Duggan
2b6a321da9 Input: synaptics-rmi4 - add support for Synaptics RMI4 devices
Synaptics uses the Register Mapped Interface (RMI) protocol as a
communications interface for their devices. This driver adds the core
functionality needed to interface with RMI4 devices.

RMI devices can be connected to the host via several transport protocols
and can supports a wide variety of functionality defined by RMI functions.
Support for transport protocols and RMI functions are implemented in
individual drivers. The RMI4 core driver uses a bus architecture to
facilitate the various combinations of transport and function drivers
needed by a particular device.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Signed-off-by: Christopher Heiny <cheiny@synaptics.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2016-03-10 16:02:39 -08:00
Amir Vadai
5b33f48842 net/flower: Introduce hardware offload support
This patch is based on a patch made by John Fastabend.
It adds support for offloading cls_flower.
when NETIF_F_HW_TC is on:
  flags = 0       => Rule will be processed twice - by hardware, and if
                     still relevant, by software.
  flags = SKIP_HW => Rull will be processed by software only

If hardware fail/not capabale to apply the rule, operation will NOT
fail. Filter will be processed by SW only.

Acked-by: Jiri Pirko <jiri@mellanox.com>
Suggested-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-10 16:24:02 -05:00
Mauro Carvalho Chehab
b2cd27448b [media] media-device: map new functions into old types for legacy API
The legacy media controller userspace API exposes entity types that
carry both type and function information. The new API replaces the type
with a function. It preserves backward compatibility by defining legacy
functions for the existing types and using them in drivers.

This works fine, as long as newer entity functions won't be added.

Unfortunately, some tools, like media-ctl with --print-dot argument
rely on the now legacy MEDIA_ENT_T_V4L2_SUBDEV and MEDIA_ENT_T_DEVNODE
numeric ranges to identify what entities will be shown.

Also, if the entity doesn't match those ranges, it will ignore the
major/minor information on devnodes, and won't be getting the devnode
name via udev or sysfs.

As we're now adding devices outside the old range, the legacy ioctl
needs to map the new entity functions into a type at the old range,
or otherwise we'll have a regression.

Detected on all released media-ctl versions (e. g. versions <= 1.10).

Fix this by deriving the type from the function to emulate the legacy
API if the function isn't in the legacy functions range.

Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-10 15:10:59 -03:00
Linus Walleij
fae9816446 gpio: uapi: use 0xB4 as ioctl() major
The previous 'o' is in conflict and not very orderly assigned.
We want to select an ioctl() major that does not conflict with
the existining ones.

Add the new reserved major (0xB4) to Documentation/ioctl/ioctl-number.txt

Fixes: 3c702e9987 ("gpio: add a userspace chardev ABI for GPIOs")
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-10 16:02:52 +07:00
Tom Herbert
ab7ac4eb98 kcm: Kernel Connection Multiplexor module
This module implements the Kernel Connection Multiplexor.

Kernel Connection Multiplexor (KCM) is a facility that provides a
message based interface over TCP for generic application protocols.
With KCM an application can efficiently send and receive application
protocol messages over TCP using datagram sockets.

For more information see the included Documentation/networking/kcm.txt

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-09 16:36:14 -05:00
Christophe Lombard
594ff7d067 cxl: Support to flash a new image on the adapter from a guest
The new flash.c file contains the logic to flash a new image on the
adapter, through a hcall. It is an iterative process, with chunks of
data of 1M at a time. There are also 2 phases: write and verify. The
flash operation itself is driven from a user-land tool.
Once flashing is successful, an rtas call is made to update the device
tree with the new properties values for the adapter and the AFU(s)

Add a new char device for the adapter, so that the flash tool can
access the card, even if there is no valid AFU on it.

Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-03-09 23:39:56 +11:00
Paolo Bonzini
ab92f30875 KVM/ARM updates for 4.6
- VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
 - PMU support for guests
 - 32bit world switch rewritten in C
 - Various optimizations to the vgic save/restore code
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Merge tag 'kvm-arm-for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/ARM updates for 4.6

- VHE support so that we can run the kernel at EL2 on ARMv8.1 systems
- PMU support for guests
- 32bit world switch rewritten in C
- Various optimizations to the vgic save/restore code

Conflicts:
	include/uapi/linux/kvm.h
2016-03-09 11:50:42 +01:00
Linus Walleij
0bae2f1732 Merge branch 'ib-mfd-regulator-gpio-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into devel 2016-03-09 17:40:37 +07:00
Alexei Starovoitov
6c90598174 bpf: pre-allocate hash map elements
If kprobe is placed on spin_unlock then calling kmalloc/kfree from
bpf programs is not safe, since the following dead lock is possible:
kfree->spin_lock(kmem_cache_node->lock)...spin_unlock->kprobe->
bpf_prog->map_update->kmalloc->spin_lock(of the same kmem_cache_node->lock)
and deadlocks.

The following solutions were considered and some implemented, but
eventually discarded
- kmem_cache_create for every map
- add recursion check to slow-path of slub
- use reserved memory in bpf_map_update for in_irq or in preempt_disabled
- kmalloc via irq_work

At the end pre-allocation of all map elements turned out to be the simplest
solution and since the user is charged upfront for all the memory, such
pre-allocation doesn't affect the user space visible behavior.

Since it's impossible to tell whether kprobe is triggered in a safe
location from kmalloc point of view, use pre-allocation by default
and introduce new BPF_F_NO_PREALLOC flag.

While testing of per-cpu hash maps it was discovered
that alloc_percpu(GFP_ATOMIC) has odd corner cases and often
fails to allocate memory even when 90% of it is free.
The pre-allocation of per-cpu hash elements solves this problem as well.

Turned out that bpf_map_update() quickly followed by
bpf_map_lookup()+bpf_map_delete() is very common pattern used
in many of iovisor/bcc/tools, so there is additional benefit of
pre-allocation, since such use cases are must faster.

Since all hash map elements are now pre-allocated we can remove
atomic increment of htab->count and save few more cycles.

Also add bpf_map_precharge_memlock() to check rlimit_memlock early to avoid
large malloc/free done by users who don't have sufficient limits.

Pre-allocation is done with vmalloc and alloc/free is done
via percpu_freelist. Here are performance numbers for different
pre-allocation algorithms that were implemented, but discarded
in favor of percpu_freelist:

1 cpu:
pcpu_ida	2.1M
pcpu_ida nolock	2.3M
bt		2.4M
kmalloc		1.8M
hlist+spinlock	2.3M
pcpu_freelist	2.6M

4 cpu:
pcpu_ida	1.5M
pcpu_ida nolock	1.8M
bt w/smp_align	1.7M
bt no/smp_align	1.1M
kmalloc		0.7M
hlist+spinlock	0.2M
pcpu_freelist	2.0M

8 cpu:
pcpu_ida	0.7M
bt w/smp_align	0.8M
kmalloc		0.4M
pcpu_freelist	1.5M

32 cpu:
kmalloc		0.13M
pcpu_freelist	0.49M

pcpu_ida nolock is a modified percpu_ida algorithm without
percpu_ida_cpu locks and without cross-cpu tag stealing.
It's faster than existing percpu_ida, but not as fast as pcpu_freelist.

bt is a variant of block/blk-mq-tag.c simlified and customized
for bpf use case. bt w/smp_align is using cache line for every 'long'
(similar to blk-mq-tag). bt no/smp_align allocates 'long'
bitmasks continuously to save memory. It's comparable to percpu_ida
and in some cases faster, but slower than percpu_freelist

hlist+spinlock is the simplest free list with single spinlock.
As expeceted it has very bad scaling in SMP.

kmalloc is existing implementation which is still available via
BPF_F_NO_PREALLOC flag. It's significantly slower in single cpu and
in 8 cpu setup it's 3 times slower than pre-allocation with pcpu_freelist,
but saves memory, so in cases where map->max_entries can be large
and number of map update/delete per second is low, it may make
sense to use it.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-08 15:28:31 -05:00
David S. Miller
4c38cd61ae Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
Netfilter/IPVS updates for net-next

The following patchset contains Netfilter updates for your net-next tree,
they are:

1) Remove useless debug message when deleting IPVS service, from
   Yannick Brosseau.

2) Get rid of compilation warning when CONFIG_PROC_FS is unset in
   several spots of the IPVS code, from Arnd Bergmann.

3) Add prandom_u32 support to nft_meta, from Florian Westphal.

4) Remove unused variable in xt_osf, from Sudip Mukherjee.

5) Don't calculate IP checksum twice from netfilter ipv4 defrag hook
   since fixing af_packet defragmentation issues, from Joe Stringer.

6) On-demand hook registration for iptables from netns. Instead of
   registering the hooks for every available netns whenever we need
   one of the support tables, we register this on the specific netns
   that needs it, patchset from Florian Westphal.

7) Add missing port range selection to nf_tables masquerading support.

BTW, just for the record, there is a typo in the description of
5f6c253ebe ("netfilter: bridge: register hooks only when bridge
interface is added") that refers to the cluster match as deprecated, but
it is actually the CLUSTERIP target (which registers hooks
inconditionally) the one that is scheduled for removal.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-08 14:25:20 -05:00
Daniel Borkmann
14ca0751c9 bpf: support for access to tunnel options
After eBPF being able to programmatically access/manage tunnel key meta
data via commit d3aa45ce6b ("bpf: add helpers to access tunnel metadata")
and more recently also for IPv6 through c6c3345407 ("bpf: support ipv6
for bpf_skb_{set,get}_tunnel_key"), this work adds two complementary
helpers to generically access their auxiliary tunnel options.

Geneve and vxlan support this facility. For geneve, TLVs can be pushed,
and for the vxlan case its GBP extension. I.e. setting tunnel key for geneve
case only makes sense, if we can also read/write TLVs into it. In the GBP
case, it provides the flexibility to easily map the group policy ID in
combination with other helpers or maps.

I chose to model this as two separate helpers, bpf_skb_{set,get}_tunnel_opt(),
for a couple of reasons. bpf_skb_{set,get}_tunnel_key() is already rather
complex by itself, and there may be cases for tunnel key backends where
tunnel options are not always needed. If we would have integrated this
into bpf_skb_{set,get}_tunnel_key() nevertheless, we are very limited with
remaining helper arguments, so keeping compatibility on structs in case of
passing in a flat buffer gets more cumbersome. Separating both also allows
for more flexibility and future extensibility, f.e. options could be fed
directly from a map, etc.

Moreover, change geneve's xmit path to test only for info->options_len
instead of TUNNEL_GENEVE_OPT flag. This makes it more consistent with vxlan's
xmit path and allows for avoiding to specify a protocol flag in the API on
xmit, so it can be protocol agnostic. Having info->options_len is enough
information that is needed. Tested with vxlan and geneve.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-08 13:58:46 -05:00
Daniel Borkmann
2208087061 bpf: allow to propagate df in bpf_skb_set_tunnel_key
Added by 9a628224a6 ("ip_tunnel: Add dont fragment flag."), allow to
feed df flag into tunneling facilities (currently supported on TX by
vxlan, geneve and gre) as a hint from eBPF's bpf_skb_set_tunnel_key()
helper.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-08 13:58:46 -05:00
Daniel Borkmann
8afd54c87a bpf: add flags to bpf_skb_store_bytes for clearing hash
When overwriting parts of the packet with bpf_skb_store_bytes() that
were fed previously into skb->hash calculation, we should clear the
current hash with skb_clear_hash(), so that a next skb_get_hash() call
can determine the correct hash related to this skb.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-08 13:55:15 -05:00
David S. Miller
810813c47a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Several cases of overlapping changes, as well as one instance
(vxlan) of a bug fix in 'net' overlapping with code movement
in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-08 12:34:12 -05:00
Lionel Landwerlin
5488dc16fd drm: introduce pipe color correction properties
Patch based on a previous series by Shashank Sharma.

This introduces optional properties to enable color correction at the
pipe level. It relies on 3 transformations applied to every pixels
displayed. First a lookup into a degamma table, then a multiplication
of the rgb components by a 3x3 matrix and finally another lookup into
a gamma table.

The following properties can be added to a pipe :
  - DEGAMMA_LUT : blob containing degamma LUT
  - DEGAMMA_LUT_SIZE : number of elements in DEGAMMA_LUT
  - CTM : transformation matrix applied after the degamma LUT
  - GAMMA_LUT : blob containing gamma LUT
  - GAMMA_LUT_SIZE : number of elements in GAMMA_LUT

DEGAMMA_LUT_SIZE and GAMMA_LUT_SIZE are read only properties, set by
the driver to tell userspace applications what sizes should be the
lookup tables in DEGAMMA_LUT and GAMMA_LUT.

A helper is also provided so legacy gamma correction is redirected
through these new properties.

v2: Register LUT size properties as range

v3: Fix round in drm_color_lut_get_value() helper
    More docs on how degamma/gamma properties are used

v4: Update contributors

v5: Rename CTM_MATRIX property to CTM (Doh!)
    Add legacy gamma_set atomic helper
    Describe CTM/LUT acronyms in the kernel doc

v6: Fix missing blob unref in drm_atomic_helper_crtc_reset

Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Kumar, Kiran S <kiran.s.kumar@intel.com>
Signed-off-by: Kausal Malladi <kausalmalladi@gmail.com>
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Acked-by: Rob Bradford <robert.bradford@intel.com>
[danvet: CrOS maintainers are also happy with the userspacde side:
https://codereview.chromium.org/1182063002/ ]
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1456506302-640-4-git-send-email-lionel.g.landwerlin@intel.com
2016-03-08 13:57:32 +01:00
Martin Koegler
a1ce94d03b ALSA: seq: Provide card number / PID via sequencer client info
rawmidi devices expose the card number via IOCTLs, which allows to
find the corresponding device in sysfs.

The sequencer provides no identifing data. Chromium works around this
issue by scanning rawmidi as well as sequencer devices and matching
them by using assumtions, how the kernel register sequencer devices.

This changes adds support for exposing the card number for kernel clients
as well as the PID for user client.

The minor of the API version is changed to distinguish between the zero
initialised reserved field and card number 0.

[minor coding style fixes by tiwai]

Signed-off-by: Martin Koegler <martin.koegler@chello.at>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-08 10:52:52 +01:00
Takashi Iwai
56d94d7039 Merge branch 'topic/hda' into for-next 2016-03-08 10:49:43 +01:00
Wilson Ding
30530791a7 serial: mvebu-uart: initial support for Armada-3700 serial port
Armada-3700's uart is a simple serial port, which doesn't
support. Configuring the modem control lines. The uart port has a 32
bytes Tx FIFO and a 64 bytes Rx FIFO

The uart driver implements the uart core operations. It also support the
system (early) console based on Armada-3700's serial port.

Known Issue:

The uart driver currently doesn't support clock programming, which means
the baud-rate stays with the default value configured by the bootloader
at boot time

[gregory.clement@free-electrons.com: Rewrite many part which are too long
to enumerate]

Signed-off-by: Wilson Ding <dingwei@marvell.com>
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-07 16:11:14 -08:00
Linus Torvalds
e2857b8f11 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix ordering of WEXT netlink messages so we don't see a newlink
    after a dellink, from Johannes Berg.

 2) Out of bounds access in minstrel_ht_set_best_prob_rage, from
    Konstantin Khlebnikov.

 3) Paging buffer memory leak in iwlwifi, from Matti Gottlieb.

 4) Wrong units used to set initial TCP rto from cached metrics, also
    from Konstantin Khlebnikov.

 5) Fix stale IP options data in the SKB control block from leaking
    through layers of encapsulation, from Bernie Harris.

 6) Zero padding len miscalculated in bnxt_en, from Michael Chan.

 7) Only CHECKSUM_PARTIAL packets should be passed down through GSO, fix
    from Hannes Frederic Sowa.

 8) Fix suspend/resume with JME networking devices, from Diego Violat
    and Guo-Fu Tseng.

 9) Checksums not validated properly in bridge multicast support due to
    the placement of the SKB header pointers at the time of the check,
    fix from Álvaro Fernández Rojas.

10) Fix hang/tiemout with r8169 if a stats fetch is done while the
    device is runtime suspended.  From Chun-Hao Lin.

11) The forwarding database netlink dump facilities don't track the
    state of the dump properly, resulting in skipped/missed entries.
    From Minoura Makoto.

12) Fix regression from a recent 3c59x bug fix, from Neil Horman.

13) Fix list corruption in bna driver, from Ivan Vecera.

14) Big endian machines crash on vlan add in bnx2x, fix from Michal
    Schmidt.

15) Ethtool RSS configuration not propagated properly in mlx5 driver,
    from Tariq Toukan.

16) Fix regression in PHY probing in stmmac driver, from Gabriel
    Fernandez.

17) Fix SKB tailroom calculation in igmp/mld code, from Benjamin
    Poirier.

18) A past change to skip empty routing headers in ipv6 extention header
    parsing accidently caused fragment headers to not be matched any
    longer.  Fix from Florian Westphal.

19) eTSEC-106 erratum needs to be applied to more gianfar chips, from
    Atsushi Nemoto.

20) Fix netdev reference after free via workqueues in usb networking
    drivers, from Oliver Neukum and Bjørn Mork.

21) mdio->irq is now an array rather than a pointer to dynamic memory,
    but several drivers were still trying to free it :-/ Fixes from
    Colin Ian King.

22) act_ipt iptables action forgets to set the family field, thus LOG
    netfilter targets don't work with it.  Fix from Phil Sutter.

23) SKB leak in ibmveth when skb_linearize() fails, from Thomas Falcon.

24) pskb_may_pull() cannot be called with interrupts disabled, fix code
    that tries to do this in vmxnet3 driver, from Neil Horman.

25) be2net driver leaks iomap'd memory on removal, fix from Douglas
    Miller.

26) Forgotton RTNL mutex unlock in ppp_create_interface() error paths,
    from Guillaume Nault.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (97 commits)
  ppp: release rtnl mutex when interface creation fails
  cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind
  tcp: fix tcpi_segs_in after connection establishment
  net: hns: fix the bug about loopback
  jme: Fix device PM wakeup API usage
  jme: Do not enable NIC WoL functions on S0
  udp6: fix UDP/IPv6 encap resubmit path
  be2net: Don't leak iomapped memory on removal.
  vmxnet3: avoid calling pskb_may_pull with interrupts disabled
  net: ethernet: Add missing MFD_SYSCON dependency on HAS_IOMEM
  ibmveth: check return of skb_linearize in ibmveth_start_xmit
  cdc_ncm: toggle altsetting to force reset before setup
  usbnet: cleanup after bind() in probe()
  mlxsw: pci: Correctly determine if descriptor queue is full
  mlxsw: spectrum: Always decrement bridge's ref count
  tipc: fix nullptr crash during subscription cancel
  net: eth: altera: do not free array priv->mdio->irq
  net/ethoc: do not free array priv->mdio->irq
  net: sched: fix act_ipt for LOG target
  asix: do not free array priv->mdio->irq
  ...
2016-03-07 15:41:10 -08:00
Dan Williams
d4f323672a nfit, libnvdimm: clear poison command support
Add the boiler-plate for a 'clear error' command based on section
9.20.7.6 "Function Index 4 - Clear Uncorrectable Error" from the ACPI
6.1 specification, and add a reference implementation in nfit_test.

Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-03-05 18:06:14 -08:00
Linus Torvalds
ee8f3955c0 media fixes for v4.5-rc7
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Merge tag 'media/v4.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:
  - some last time changes before we stablize the new entity function
    integer numbers at uAPI
  - probe: fix erroneous return value on i2c/adp1653 driver
  - fix tx 5v detect regression on adv7604 driver
  - fix missing unlock on error in vpfe_prepare_pipeline() on
    davinci_vpfe driver

* tag 'media/v4.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] media: Sanitise the reserved fields of the G_TOPOLOGY IOCTL arguments
  [media] media.h: postpone connectors entities
  [media] media.h: use hex values for range offsets,  move connectors base up.
  [media] adv7604: fix tx 5v detect regression
  [media] media.h: get rid of MEDIA_ENT_F_CONN_TEST
  [media] [for,v4.5] media.h: increase the spacing between function ranges
  [media] media: i2c/adp1653: probe: fix erroneous return value
  [media] media: davinci_vpfe: fix missing unlock on error in vpfe_prepare_pipeline()
2016-03-05 12:32:34 -08:00
Reilly Grant
d883f52e1f usb: devio: Add ioctl to disallow detaching kernel USB drivers.
The new USBDEVFS_DROP_PRIVILEGES ioctl allows a process to voluntarily
relinquish the ability to issue other ioctls that may interfere with
other processes and drivers that have claimed an interface on the
device.

This commit also includes a simple utility to be able to test the
ioctl, located at Documentation/usb/usbdevfs-drop-permissions.c

Example (with qemu-kvm's input device):

    $ lsusb
    ...
    Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd

    $ usb-devices
    ...
    C:  #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=02 Driver=usbhid

    $ sudo ./usbdevfs-drop-permissions /dev/bus/usb/001/002
    OK: privileges dropped!
    Available options:
    [0] Exit now
    [1] Reset device. Should fail if device is in use
    [2] Claim 4 interfaces. Should succeed where not in use
    [3] Narrow interface permission mask
    Which option shall I run?: 1
    ERROR: USBDEVFS_RESET failed! (1 - Operation not permitted)
    Which test shall I run next?: 2
    ERROR claiming if 0 (1 - Operation not permitted)
    ERROR claiming if 1 (1 - Operation not permitted)
    ERROR claiming if 2 (1 - Operation not permitted)
    ERROR claiming if 3 (1 - Operation not permitted)
    Which test shall I run next?: 0

After unbinding usbhid:

    $ usb-devices
    ...
    I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=02 Driver=(none)

    $ sudo ./usbdevfs-drop-permissions /dev/bus/usb/001/002
    ...
    Which option shall I run?: 2
    OK: claimed if 0
    ERROR claiming if 1 (1 - Operation not permitted)
    ERROR claiming if 2 (1 - Operation not permitted)
    ERROR claiming if 3 (1 - Operation not permitted)
    Which test shall I run next?: 1
    OK: USBDEVFS_RESET succeeded
    Which test shall I run next?: 0

After unbinding usbhid and restricting the mask:

    $ sudo ./usbdevfs-drop-permissions /dev/bus/usb/001/002
    ...
    Which option shall I run?: 3
    Insert new mask: 0
    OK: privileges dropped!
    Which test shall I run next?: 2
    ERROR claiming if 0 (1 - Operation not permitted)
    ERROR claiming if 1 (1 - Operation not permitted)
    ERROR claiming if 2 (1 - Operation not permitted)
    ERROR claiming if 3 (1 - Operation not permitted)

Signed-off-by: Reilly Grant <reillyg@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Emilio López <emilio.lopez@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-05 12:05:01 -08:00
Dave Hansen
49cd53bf14 mm/pkeys: Fix siginfo ABI breakage caused by new u64 field
Stephen Rothwell reported this linux-next build failure:

	http://lkml.kernel.org/r/20160226164406.065a1ffc@canb.auug.org.au

... caused by the Memory Protection Keys patches from the tip tree triggering
a newly introduced build-time sanity check on an ARM build, because they changed
the ABI of siginfo in an unexpected way.

If u64 has a natural alignment of 8 bytes (which is the case on most mainstream
platforms, with the notable exception of x86-32), then the leadup to the
_sifields union matters:

typedef struct siginfo {
        int si_signo;
        int si_errno;
        int si_code;

        union {
	...
        } _sifields;
} __ARCH_SI_ATTRIBUTES siginfo_t;

Note how the first 3 fields give us 12 bytes, so _sifields is not 8
naturally bytes aligned.

Before the _pkey field addition the largest element of _sifields (on
32-bit platforms) was 32 bits. With the u64 added, the minimum alignment
requirement increased to 8 bytes on those (rare) 32-bit platforms. Thus
GCC padded the space after si_code with 4 extra bytes, and shifted all
_sifields offsets by 4 bytes - breaking the ABI of all of those
remaining fields.

On 64-bit platforms this problem was hidden due to _sifields already
having numerous fields with natural 8 bytes alignment (pointers).

To fix this, we replace the u64 with an '__u32'.  The __u32 does not
increase the minimum alignment requirement of the union, and it is
also large enough to store the 16-bit pkey we have today on x86.

Reported-by: Stehen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Stehen Rothwell <sfr@canb.auug.org.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Helge Deller <deller@gmx.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-next@vger.kernel.org
Fixes: cd0ea35ff5 ("signals, pkeys: Notify userspace about protection key faults")
Link: http://lkml.kernel.org/r/20160301125451.02C7426D@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-03-05 15:00:06 +01:00
Nicolas Dichtel
14e2037902 ethtool.h: define INT_MAX for userland
INT_MAX needs limits.h in userland.
When ethtool.h is included by a userland app, we got the following error:

.../usr/include/linux/ethtool.h: In function 'ethtool_validate_speed':
.../usr/include/linux/ethtool.h:1471:18: error: 'INT_MAX' undeclared (first use in this function)
  return speed <= INT_MAX || speed == SPEED_UNKNOWN
                  ^

Fixes: e02564ee33 ("ethtool: make validate_speed accept all speeds between 0 and INT_MAX")
CC: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-04 16:10:37 -05:00
Nicolas Dichtel
b5d3755a22 uapi: define DIV_ROUND_UP for userland
DIV_ROUND_UP is defined in linux/kernel.h only for the kernel.
When ethtool.h is included by a userland app, we got the following error:

include/linux/ethtool.h:1218:8: error: variably modified 'queue_mask' at file scope
  __u32 queue_mask[DIV_ROUND_UP(MAX_NUM_QUEUE, 32)];
        ^

Let's add a common definition in uapi and use it everywhere.

Fixes: ac2c7ad0e5 ("net/ethtool: introduce a new ioctl for per queue setting")
CC: Kan Liang <kan.liang@intel.com>
Suggested-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-04 16:10:36 -05:00
Dmitry Torokhov
52cdce8adb Merge branch 'rotary-encoder' into next
Bring in updates to roraty encoder driver switching it away from legacy
platform data and over to generic device properties and adding support
for encoders using more than 2 GPIOs.
2016-03-04 11:32:40 -08:00
Christoph Hellwig
97be7ebe53 vfs: add the RWF_HIPRI flag for preadv2/pwritev2
This adds a flag that tells the file system that this is a high priority
request for which it's worth to poll the hardware.  The flag is purely
advisory and can be ignored if not supported.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Stephen Bates <stephen.bates@pmcs.com>
Tested-by: Stephen Bates <stephen.bates@pmcs.com>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-03-04 12:20:10 -05:00
Li Jun
346dbc6993 usb: add OTG status selector definition for HNP polling
A host is required to use the GetStatus command, with wIndex set to the
OTG status selector(F000H) to request the Host request flag from the
peripheral.

Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-03-04 15:14:35 +02:00
John Youn
446fa3a95d usb: ch9: Add size macro for SSP dev cap descriptor
The SuperspeedPlus Device Capability Descriptor has a variable size
depending on the number of sublink speed attributes.

This patch adds a macro to calculate that size. The macro takes one
argument, the Sublink Speed Attribute Count (SSAC) as reported by the
descriptor in bmAttributes[4:0].

See USB 3.1 9.6.2.5, Table 9-19.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2016-03-04 15:14:22 +02:00
Thomas Klausner
59e4282717 ALSA: uapi: Make alsa asound.h header more portable
This header is used as-is in the alsa-lib userland library,
which is portable to other operating systems.
For this reason, include linux/types.h only on Linux systems.

Add sys/ioctl.h for _IOR/_IOW/etc. (works at least on *BSD and Solaris).

Signed-off-by: Thomas Klausner <wiz@NetBSD.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-03-04 10:50:48 +01:00
Dave Airlie
912b330c20 Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next
Big ticket items are hdmi support for 8996 (aka snapdragon 820), and
adreno 430 support.  Also one more small uapi addition to support
timestamp queries.

* 'msm-next' of git://people.freedesktop.org/~robclark/linux: (29 commits)
  drm/msm: rename hdmi symbols
  drm/msm/adreno: remove duplicate adreno_hw_init() call
  drm/msm: add timestamp param
  drm/msm: fix small typo
  drm/msm: grab struct_mutex after allocating submit
  drm/msm: reject submit ioctl if no gpu
  drm/msm/adreno: print details in case of a protect fault interrupt
  drm/msm/adreno: get CP_RPTR from register instead of shadow memory
  drm/msm/adreno: add adreno430 power control
  drm/msm/adreno: support for adreno 430.
  drm/msm: update generated headers
  drm/msm/dsi: fix definition of msm_dsi_pll_28nm_8960_init()
  drm/msm/dsi: Parse DSI lanes via DT
  drm/msm/dsi: Drop VDD regulator for MSM8916
  drm/msm/dsi: Remove incorrect warning on host attach
  drm/msm: Free fb helper resources in msm_unload
  drm/msm/mdp: Detach iommu in mdp4_destroy
  drm/msm: make iommu port names const'ier
  drm/msm/mdp: Use atomic helper to set crtc property
  dt-bindings: msm/hdmi: Add HDMI PHY bindings
  ...
2016-03-04 13:37:39 +10:00
Christopher S. Hall
719f1aa4a6 ptp: Add PTP_SYS_OFFSET_PRECISE for driver crosstimestamping
Currently, network /system cross-timestamping is performed in the
PTP_SYS_OFFSET ioctl. The PTP clock driver reads gettimeofday() and
the gettime64() callback provided by the driver. The cross-timestamp
is best effort where the latency between the capture of system time
(getnstimeofday()) and the device time (driver callback) may be
significant.

The getcrosststamp() callback and corresponding PTP_SYS_OFFSET_PRECISE
ioctl allows the driver to perform this device/system correlation when
for example cross timestamp hardware is available. Modern Intel
systems can do this for onboard Ethernet controllers using the ART
counter. There is virtually zero latency between captures of the ART
and network device clock.

The capabilities ioctl (PTP_CLOCK_GETCAPS), is augmented allowing
applications to query whether or not drivers implement the
getcrosststamp callback, providing more precise cross timestamping.

Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: kevin.b.stanton@intel.com
Cc: kevin.j.clarke@intel.com
Cc: hpa@zytor.com
Cc: jeffrey.t.kirsher@intel.com
Cc: netdev@vger.kernel.org
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Christopher S. Hall <christopher.s.hall@intel.com>
[jstultz: Commit subject tweaks]
Signed-off-by: John Stultz <john.stultz@linaro.org>
2016-03-03 14:23:43 -08:00
Hans Verkuil
64bd1971de [media] media.h: always start with 1 for the audio entities
Start the audio defines with BASE + 0x03001 instead of 0x03000. This is consistent
with the other defines, and I think it is good practice not to start with 0, just in
case we want to do something like (id & 0xfff) in the future and treat the value 0
as a special case.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 18:16:25 -03:00
Sakari Ailus
fbe093ac9f [media] media: Sanitise the reserved fields of the G_TOPOLOGY IOCTL arguments
The argument structs are used in arrays for G_TOPOLOGY IOCTL. The
arguments themselves do not need to be aligned to a power of two, but
aligning them up to the largest basic type alignment (u64) on common ABIs
is a good thing to do.

The patch changes the size of the reserved fields to 5 or 6 u32's and
aligns the size of the struct to 8 bytes so we do no longer depend on the
compiler to perform the alignment.

While at it, add __attribute__ ((packed)) to these structs as well.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 18:10:53 -03:00
Mauro Carvalho Chehab
93125094c0 [media] media.h: postpone connectors entities
The representation of external connections got some heated
discussions recently. As we're too close to the merge window,
let's not set those entities into a stone.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 14:52:51 -03:00
Rob Clark
6c77d1abe6 drm/msm: add timestamp param
We need this for GL_TIMESTAMP queries.

Note: currently only supported on a4xx.. a3xx doesn't have this
always-on counter.  I think we could emulate it with the one CP
counter that is available, but for now it is of limited usefulness
on a3xx (since we can't seem to do time-elapsed queries in any sane
way with the existing firmware on a3xx, and if you are trying to do
profiling on a tiler you want time-elapsed).  We can add that later
if it becomes useful.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2016-03-03 11:55:32 -05:00
Sakari Ailus
0629e991a2 [media] media: Move media_get_uptr() macro out of the media.h user space header
The media_get_uptr() macro is mostly useful only for the IOCTL handling
code in media-device.c so move it there.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 13:02:44 -03:00
Paolo Bonzini
61ec84f145 Merge branch 'kvm-ppc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD
The highlights are:

* Enable VFIO device on PowerPC, from David Gibson
* Optimizations to speed up IPIs between vcpus in HV KVM,
  from Suresh Warrier (who is also Suresh E. Warrier)
* In-kernel handling of IOMMU hypercalls, and support for dynamic DMA
  windows (DDW), from Alexey Kardashevskiy.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-03 14:36:07 +01:00
Aviv Greenberg
5d8d8db851 [media] UVC: Add support for R200 depth camera
Add support for Intel R200 depth camera in uvc driver.
This includes adding new uvc GUIDs for the new pixel formats,
adding new V4L pixel format definition to user api headers,
and updating the uvc driver GUID-to-4cc tables with the new formats.

Tested-by: Greenberg, Aviv D <aviv.d.greenberg@intel.com>
Signed-off-by: Aviv Greenberg <aviv.d.greenberg@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 06:49:20 -03:00
Hans Verkuil
87294e9db5 [media] media.h: use hex values for IF and AUDIO entities too
Make the base offset hexadecimal to simplify debugging since the base
addresses are hex too.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 06:10:14 -03:00
Mauro Carvalho Chehab
664716ad01 Merge branch 'v4l_for_linus' into patchwork
We need to import the changes at media.h, as we have a
followup patch that depends on it.

* v4l_for_linus:
  [media] media.h: use hex values for range offsets,  move connectors base up.
  [media] adv7604: fix tx 5v detect regression
2016-03-03 06:07:41 -03:00
Hans Verkuil
58402b6e98 [media] media.h: use hex values for range offsets, move connectors base up.
Make the base offset hexadecimal to simplify debugging since the base
addresses are hex too.

The offsets for connectors is also changed to start after the 'reserved'
range 0x10000-0x2ffff.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 05:56:33 -03:00
Pablo Neira Ayuso
8a6bf5da1a netfilter: nft_masq: support port range
Complete masquerading support by allowing port range selection.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-03-02 20:05:27 +01:00
Michael S. Tsirkin
592002f55e virtio_blk: VIRTIO_BLK_F_WCE->VIRTIO_BLK_F_FLUSH
Latest virtio spec says the feature bit name is VIRTIO_BLK_F_FLUSH,
VIRTIO_BLK_F_WCE is the legacy name.  virtio blk header says exactly the
reverse - fix that and update driver code to match.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-03-02 17:01:59 +02:00
Greg Kroah-Hartman
71e41bbb43 Merge 4.5-rc6 into usb-next
We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-01 16:13:54 -08:00
Greg Kroah-Hartman
3e66848a32 Merge 4.5-rc6 into staging-next
We want the staging fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-01 16:10:45 -08:00
Alexey Kardashevskiy
58ded4201f KVM: PPC: Add support for 64bit TCE windows
The existing KVM_CREATE_SPAPR_TCE only supports 32bit windows which is not
enough for directly mapped windows as the guest can get more than 4GB.

This adds KVM_CREATE_SPAPR_TCE_64 ioctl and advertises it
via KVM_CAP_SPAPR_TCE_64 capability. The table size is checked against
the locked memory limit.

Since 64bit windows are to support Dynamic DMA windows (DDW), let's add
@bus_offset and @page_shift which are also required by DDW.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2016-03-02 09:56:50 +11:00
Alexey Kardashevskiy
01d01d6919 KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_64 capability number
This adds a capability number for 64-bit TCE tables support.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2016-03-02 09:56:50 +11:00
Jamal Hadi Salim
ef6980b6be introduce IFE action
This action allows for a sending side to encapsulate arbitrary metadata
which is decapsulated by the receiving end.
The sender runs in encoding mode and the receiver in decode mode.
Both sender and receiver must specify the same ethertype.
At some point we hope to have a registered ethertype and we'll
then provide a default so the user doesnt have to specify it.
For now we enforce the user specify it.

Lets show example usage where we encode icmp from a sender towards
a receiver with an skbmark of 17; both sender and receiver use
ethertype of 0xdead to interop.

YYYY: Lets start with Receiver-side policy config:
xxx: add an ingress qdisc
sudo tc qdisc add dev $ETH ingress

xxx: any packets with ethertype 0xdead will be subjected to ife decoding
xxx: we then restart the classification so we can match on icmp at prio 3
sudo $TC filter add dev $ETH parent ffff: prio 2 protocol 0xdead \
u32 match u32 0 0 flowid 1:1 \
action ife decode reclassify

xxx: on restarting the classification from above if it was an icmp
xxx: packet, then match it here and continue to the next rule at prio 4
xxx: which will match based on skb mark of 17
sudo tc filter add dev $ETH parent ffff: prio 3 protocol ip \
u32 match ip protocol 1 0xff flowid 1:1 \
action continue

xxx: match on skbmark of 0x11 (decimal 17) and accept
sudo tc filter add dev $ETH parent ffff: prio 4 protocol ip \
handle 0x11 fw flowid 1:1 \
action ok

xxx: Lets show the decoding policy
sudo tc -s filter ls dev $ETH parent ffff: protocol 0xdead
xxx:
filter pref 2 u32
filter pref 2 u32 fh 800: ht divisor 1
filter pref 2 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1  (rule hit 0 success 0)
  match 00000000/00000000 at 0 (success 0 )
        action order 1: ife decode action reclassify
         index 1 ref 1 bind 1 installed 14 sec used 14 sec
         type: 0x0
         Metadata: allow mark allow hash allow prio allow qmap
        Action statistics:
        Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
        backlog 0b 0p requeues 0
xxx:
Observe that above lists all metadatum it can decode. Typically these
submodules will already be compiled into a monolithic kernel or
loaded as modules

YYYY: Lets show the sender side now ..

xxx: Add an egress qdisc on the sender netdev
sudo tc qdisc add dev $ETH root handle 1: prio
xxx:
xxx: Match all icmp packets to 192.168.122.237/24, then
xxx: tag the packet with skb mark of decimal 17, then
xxx: Encode it with:
xxx:	ethertype 0xdead
xxx:	add skb->mark to whitelist of metadatum to send
xxx:	rewrite target dst MAC address to 02:15:15:15:15:15
xxx:
sudo $TC filter add dev $ETH parent 1: protocol ip prio 10  u32 \
match ip dst 192.168.122.237/24 \
match ip protocol 1 0xff \
flowid 1:2 \
action skbedit mark 17 \
action ife encode \
type 0xDEAD \
allow mark \
dst 02:15:15:15:15:15

xxx: Lets show the encoding policy
sudo tc -s filter ls dev $ETH parent 1: protocol ip
xxx:
filter pref 10 u32
filter pref 10 u32 fh 800: ht divisor 1
filter pref 10 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:2  (rule hit 0 success 0)
  match c0a87aed/ffffffff at 16 (success 0 )
  match 00010000/00ff0000 at 8 (success 0 )

	action order 1:  skbedit mark 17
	 index 6 ref 1 bind 1
 	Action statistics:
	Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
	backlog 0b 0p requeues 0

	action order 2: ife encode action pipe
	 index 3 ref 1 bind 1
	 dst MAC: 02:15:15:15:15:15 type: 0xDEAD
 	 Metadata: allow mark
 	Action statistics:
	Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
	backlog 0b 0p requeues 0
xxx:

test by sending ping from sender to destination

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01 17:15:22 -05:00
David S. Miller
d67703fced Here's another round of updates for -next:
* big A-MSDU RX performance improvement (avoid linearize of paged RX)
  * rfkill changes: cleanups, documentation, platform properties
  * basic PBSS support in cfg80211
  * MU-MIMO action frame processing support
  * BlockAck reordering & duplicate detection offload support
  * various cleanups & little fixes
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Merge tag 'mac80211-next-for-davem-2016-02-26' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Here's another round of updates for -next:
 * big A-MSDU RX performance improvement (avoid linearize of paged RX)
 * rfkill changes: cleanups, documentation, platform properties
 * basic PBSS support in cfg80211
 * MU-MIMO action frame processing support
 * BlockAck reordering & duplicate detection offload support
 * various cleanups & little fixes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01 17:03:27 -05:00
Nikolay Aleksandrov
59f78f9f6c bridge: mcast: add support for more router port information dumping
Allow for more multicast router port information to be dumped such as
timer and type attributes. For that that purpose we need to extend the
MDBA_ROUTER_PORT attribute similar to how it was done for the mdb entries
recently. The new format is thus:
[MDBA_ROUTER_PORT] = { <- nested attribute
    u32 ifindex <- router port ifindex for user-space compatibility
    [MDBA_ROUTER_PATTR attributes]
}
This way it remains compatible with older users (they'll simply retrieve
the u32 in the beginning) and new users can parse the remaining
attributes. It would also allow to add future extensions to the router
port without breaking compatibility.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01 16:55:07 -05:00
Nikolay Aleksandrov
a55d8246ab bridge: mcast: add support for temporary port router
Add support for a temporary router port which doesn't depend only on the
incoming query. It can be refreshed if set to the same value, which is
a no-op for the rest.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01 16:55:07 -05:00
Nikolay Aleksandrov
7f0aec7a66 bridge: mcast: use names for the different multicast_router types
Using raw values makes it difficult to extend and also understand the
code, give them names and do explicit per-option manipulation in
br_multicast_set_port_router.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01 16:55:07 -05:00
Jiri Pirko
bfcd3a4661 Introduce devlink infrastructure
Introduce devlink infrastructure for drivers to register and expose to
userspace via generic Netlink interface.

There are two basic objects defined:
devlink - one instance for every "parent device", for example switch ASIC
devlink port - one instance for every physical port of the device.

This initial portion implements basic get/dump of objects to userspace.
Also, port splitter and port type setting is implemented.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01 16:07:29 -05:00
John Fastabend
9e8ce79cd7 net: sched: cls_u32 add bit to specify software only rules
In the initial implementation the only way to stop a rule from being
inserted into the hardware table was via the device feature flag.
However this doesn't work well when working on an end host system
where packets are expect to hit both the hardware and software
datapaths.

For example we can imagine a rule that will match an IP address and
increment a field. If we install this rule in both hardware and
software we may increment the field twice. To date we have only
added support for the drop action so we have been able to ignore
these cases. But as we extend the action support we will hit this
example plus more such cases. Arguably these are not even corner
cases in many working systems these cases will be common.

To avoid forcing the driver to always abort (i.e. the above example)
this patch adds a flag to add a rule in software only. A careful
user can use this flag to build software and hardware datapaths
that work together. One example we have found particularly useful
is to use hardware resources to set the skb->mark on the skb when
the match may be expensive to run in software but a mark lookup
in a hash table is cheap. The idea here is hardware can do in one
lookup what the u32 classifier may need to traverse multiple lists
and hash tables to compute. The flag is only passed down on inserts.
On deletion to avoid stale references in hardware we always try
to remove a rule if it exists.

The flags field is part of the classifier specific options. Although
it is tempting to lift this into the generic structure doing this
proves difficult do to how the tc netlink attributes are implemented
along with how the dump/change routines are called. There is also
precedence for putting seemingly generic pieces in the specific
classifier options such as TCA_U32_POLICE, TCA_U32_ACT, etc. So
although not ideal I've left FLAGS in the u32 options as well as it
simplifies the code greatly and user space has already learned how
to manage these bits ala 'tc' tool.

Another thing if trying to update a rule we require the flags to
be unchanged. This is to force user space, software u32 and
the hardware u32 to keep in sync. Thanks to Simon Horman for
catching this case.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-01 16:05:39 -05:00
Andrzej Hajda
cbf0aceff8 drm/exynos: use arch independent types in uapi header
User API structs should not use types which size/alignment/padding depends
on architecture. The patch fixes it for all structures except
drm_exynos_g2d_userptr, as g2d related stuff seems to be more complicated
and will be reviewed/adjusted later.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01 23:37:24 +09:00
Dave Airlie
efcebcf983 Merge tag 'drm-intel-next-2016-02-14' of git://anongit.freedesktop.org/drm-intel into drm-next
- lots and lots of fbc work from Paulo
- max pixel clock checks from Mika Kahola
- prep work for nv12 offset handling from Ville
- piles of small fixes and refactorings all around

* tag 'drm-intel-next-2016-02-14' of git://anongit.freedesktop.org/drm-intel: (113 commits)
  drm/i915: Update DRIVER_DATE to 20160214
  drm/i915: edp resume/On time optimization.
  agp/intel-gtt: Only register fake agp driver for gen1
  drm/i915: TV pixel clock check
  drm/i915: CRT pixel clock check
  drm/i915: SDVO pixel clock check
  drm/i915: DisplayPort-MST pixel clock check
  drm/i915: HDMI pixel clock check
  drm/i915: DisplayPort pixel clock check
  drm/i915: check that rpm ref is held when accessing ringbuf in stolen mem
  drm/i915: fix error path in intel_setup_gmbus()
  drm/i915: Stop depending upon CONFIG_AGP_INTEL
  agp/intel-gtt: Don't leak the scratch page
  drm/i915: Capture PCI revision and subsytem details in error state
  drm/i915: fix context/engine cleanup order
  drm/i915: Handle PipeC fused off on IVB/HSW/BDW
  drm/i915/skl: Fix typo in DPLL_CFGCR1 definition
  drm/i915: Skip DDI PLL selection for DSI
  drm/i915/skl: Explicitly check for eDP in skl_ddi_pll_select()
  drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
  ...
2016-03-01 13:06:44 +10:00
Faisal Latif
7a43b598a3 i40iw: add entry in rdma_netlink
Add entry for port mapper services.

Changes since v2:
	moved this patch before being used

Changes since v1:
	moved I40IW as last element

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-02-29 17:10:52 -05:00
Mitko Haralanov
0b091fb32c staging/hfi1: Enable TID caching feature
This commit "flips the switch" on the TID caching feature
implemented in this patch series.

As well as enabling the new feature by tying the new function
with the PSM API, it also cleans up the old unneeded code,
data structure members, and variables.

Due to difference in operation and information, the tracing
functions related to expected receives had to be changed. This
patch include these changes.

The tracing function changes could not be split into a separate
commit without including both tracing variants at the same time.
This would have caused other complications and ugliness.

Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-02-29 17:10:39 -05:00
Mitko Haralanov
955ad36dcd uapi/hfi1_user: Add command and event for TID caching
TID caching will use a new event to signal userland that cache
invalidation has occurred and needs a matching command code that
will be used to read the invalidated TIDs.

Add the event bit and the new command to the exported header file.

The command is also added to the switch() statement in file_ops.c
for completeness and in preparation for its usage later.

Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-02-29 17:10:38 -05:00
Mitko Haralanov
462075a6ea uapi/hfi1_user: Correct comment for capability bit
The HFI1_CAP_TID_UNMAP comment was incorrectly implying the
opposite of what capability actually did. Correct this error.

Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-02-29 17:10:38 -05:00
Shannon Zhao
f577f6c2a6 arm64: KVM: Introduce per-vcpu kvm device controls
In some cases it needs to get/set attributes specific to a vcpu and so
needs something else than ONE_REG.

Let's copy the KVM_DEVICE approach, and define the respective ioctls
for the vcpu file descriptor.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:21 +00:00
Shannon Zhao
808e738142 arm64: KVM: Add a new feature bit for PMUv3
To support guest PMUv3, use one bit of the VCPU INIT feature array.
Initialize the PMU when initialzing the vcpu with that bit and PMU
overflow interrupt set.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-29 18:34:21 +00:00
Takashi Iwai
eedf5e72c4 ALSA: seq: Remove unimplemented ioctls
SNDRV_SEQ_IOCTL_{GET|SET}_QUEUE_OWNER and *_{GET|SET}_QUEUE_SYNC
ioctls have been never implemented.  Get rid of the definitions from
uapi header file.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2016-02-29 18:09:37 +01:00
Florian Westphal
b07edbe1cf netfilter: meta: add PRANDOM support
Can be used to randomly match packets e.g. for statistic traffic sampling.

See commit 3ad0040573
("bpf: split state from prandom_u32() and consolidate {c, e}BPF prngs")
for more info why this doesn't use prandom_u32 directly.

Unlike bpf nft_meta can be built as a module, so add an EXPORT_SYMBOL
for prandom_seed_full_state too.

Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-02-29 13:55:59 +01:00
Shuah Khan
7a2eba12ff [media] media: Add ALSA Media Controller function entities
Add ALSA Media Controller capture, playback, and mixer
function entity defines.

[mchehab@osg.samsung.com: fix a trivial merge conflict and start
 MEDIA_ENT_AUDIO_F from 3000]

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-27 08:32:54 -03:00