Commit Graph

33486 Commits

Author SHA1 Message Date
Linus Torvalds
58bdf601c2 Merge branch 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "A driver fix and a documentation fix (which makes dependency handling
  for the next cycle easier)"

* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: octeon: Prevent error message on bus error
  dt-bindings: at24: sort manufacturers alphabetically
2018-03-03 14:55:20 -08:00
Daniel Axtens
d02f51cbcf bpf: fix bpf_skb_adjust_net/bpf_skb_proto_xlat to deal with gso sctp skbs
SCTP GSO skbs have a gso_size of GSO_BY_FRAGS, so any sort of
unconditionally mangling of that will result in nonsense value
and would corrupt the skb later on.

Therefore, i) add two helpers skb_increase_gso_size() and
skb_decrease_gso_size() that would throw a one time warning and
bail out for such skbs and ii) refuse and return early with an
error in those BPF helpers that are affected. We do need to bail
out as early as possible from there before any changes on the
skb have been performed.

Fixes: 6578171a7f ("bpf: add bpf_skb_change_proto helper")
Co-authored-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-03-03 13:01:11 -08:00
Linus Torvalds
7cf901b355 media fixes for v4.16-rc4
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Merge tag 'media/v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

  - some build fixes with randconfigs

  - an m88ds3103 fix to prevent an OOPS if the chip doesn't provide the
    right version during probe (with can happen if the hardware hangs)

  - a potential out of array bounds reference in tvp5150

  - some fixes and improvements in the DVB memory mapped API (added for
    kernel 4.16)

* tag 'media/v4.16-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: vb2: Makefile: place vb2-trace together with vb2-core
  media: Don't let tvp5150_get_vbi() go out of vbi_ram_default array
  media: dvb: update buffer mmaped flags and frame counter
  media: dvb: add continuity error indicators for memory mapped buffers
  media: dmxdev: Fix the logic that enables DMA mmap support
  media: dmxdev: fix error code for invalid ioctls
  media: m88ds3103: don't call a non-initalized function
  media: au0828: add VIDEO_V4L2 dependency
  media: dvb: fix DVB_MMAP dependency
  media: dvb: fix DVB_MMAP symbol name
  media: videobuf2: fix build issues with vb2-trace
  media: videobuf2: Add VIDEOBUF2_V4L2 Kconfig option for VB2 V4L2 part
2018-03-03 10:27:14 -08:00
Linus Torvalds
03a6c2592f KVM fixes for v4.16-rc4
x86:
 - fix NULL dereference when using userspace lapic
 - optimize spectre v1 mitigations by allowing guests to use LFENCE
 - make microcode revision configurable to prevent guests from
   unnecessarily blacklisting spectre v2 mitigation features
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Radim Krčmář:
 "x86:

   - fix NULL dereference when using userspace lapic

   - optimize spectre v1 mitigations by allowing guests to use LFENCE

   - make microcode revision configurable to prevent guests from
     unnecessarily blacklisting spectre v2 mitigation feature"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: fix vcpu initialization with userspace lapic
  KVM: X86: Allow userspace to define the microcode version
  KVM: X86: Introduce kvm_get_msr_feature()
  KVM: SVM: Add MSR-based feature support for serializing LFENCE
  KVM: x86: Add a framework for supporting MSR-based features
2018-03-02 19:40:43 -08:00
Linus Torvalds
329ad5e544 pci-v4.16-fixes-2
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Merge tag 'pci-v4.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - Update pci.ids location (documentation only) (Randy Dunlap)

 - Fix a crash when BIOS didn't assign a BAR and we try to enlarge it
   (Christian König)

* tag 'pci-v4.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Allow release of resources that were never assigned
  PCI: Update location of pci.ids file
2018-03-02 17:44:39 -08:00
Alastair D'Silva
e7666d046a ocxl: Document the OCXL_IOCTL_GET_METADATA IOCTL
Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-03-02 13:02:15 +11:00
Tom Lendacky
801e459a6f KVM: x86: Add a framework for supporting MSR-based features
Provide a new KVM capability that allows bits within MSRs to be recognized
as features.  Two new ioctls are added to the /dev/kvm ioctl routine to
retrieve the list of these MSRs and then retrieve their values. A kvm_x86_ops
callback is used to determine support for the listed MSR-based features.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[Tweaked documentation. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-03-01 19:00:28 +01:00
Li RongQing
3000974616 Documentation, x86, resctrl: Make text and sample command match
The text says "Move the cpus 4-7 over to p1", but the sample command writes
to p0/cpus.

Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: fenghua.yu@intel.com
Cc: linux-doc@vger.kernel.org
Link: https://lkml.kernel.org/r/1519712271-8802-1-git-send-email-lirongqing@baidu.com
2018-02-28 19:59:05 +01:00
Geert Uytterhoeven
7998a4ecc6 dt-bindings/irqchip/renesas-irqc: Document R-Car M3-N support
Document support for the Interrupt Controller for Externel Devices
(INTC-EX) in the Renesas M3-N (r8a77965) SoC.

No driver update is needed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-renesas-soc@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Link: https://lkml.kernel.org/r/1519658712-22910-1-git-send-email-geert%2Brenesas@glider.be
2018-02-28 19:55:43 +01:00
Linus Torvalds
e04d368f47 DeviceTree fixes for 4.16:
- Update i.MX thermal binding example to use current binding, not the
   deprecated one
 
 - Move arm-charlcd to auxdisplay/
 
 - Fix misspelling of "debounce-interval"
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Merge tag 'devicetree-fixes-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:

 - update i.MX thermal binding example to use current binding, not the
   deprecated one

 - move arm-charlcd to auxdisplay/

 - fix misspelling of "debounce-interval"

* tag 'devicetree-fixes-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: power: Fix "debounce-interval" property misspelling
  auxdisplay: Move arm-charlcd binding to correct folder
  dt-bindings: thermal: imx: update the binding to new method
2018-02-28 10:39:43 -08:00
Russell King
66f5325ce9 dt-bindings: add maximum power level to SFP binding
Add the new maximum power level property to the SFP binding.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-28 11:07:11 -05:00
Peter Rosin
377999caf7 dt-bindings: at24: sort manufacturers alphabetically
Makes them easier to find.

Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2018-02-28 09:56:23 +01:00
David S. Miller
afdd6ae352 Merge branch 'ieee802154-for-davem-2018-02-26' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next
Stefan Schmidt says:

====================
pull-request: ieee802154-next 2018-02-26

An update from ieee802154 for *net-next*

Alexander corrected a setting which got lost during some 6lowpan rework
a while back and Xue Liu provided us with a new driver for the MCR20A
transceiver.

If there are any issues let me know. If not, please pull.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-27 11:14:57 -05:00
Sergei Shtylyov
3a291aa118 DT: net: renesas,ravb: document R8A77980 bindings
Renesas R-Car V3H (R8A77980) SoC has the R-Car gen3 compatible EtherAVB
device, so document the SoC specific bindings.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-26 15:10:31 -05:00
Linus Torvalds
d4858aaf6b s390:
- optimization for the exitless interrupt support that was merged in 4.16-rc1
 - improve the branch prediction blocking for nested KVM
 - replace some jump tables with switch statements to improve expoline performance
 - fixes for multiple epoch facility
 
 ARM:
 - fix the interaction of userspace irqchip VMs with in-kernel irqchip VMs
 - make sure we can build 32-bit KVM/ARM with gcc-8.
 
 x86:
 - fixes for AMD SEV
 - fixes for Intel nested VMX, emulated UMIP and a dump_stack() on VM startup
 - fixes for async page fault migration
 - small optimization to PV TLB flush (new in 4.16-rc1)
 - syzkaller fixes
 
 Generic:
 - compiler warning fixes
 - syzkaller fixes
 - more improvements to the kvm_stat tool
 
 Two more small Spectre fixes are going to reach you via Ingo.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "s390:
   - optimization for the exitless interrupt support that was merged in 4.16-rc1
   - improve the branch prediction blocking for nested KVM
   - replace some jump tables with switch statements to improve expoline performance
   - fixes for multiple epoch facility

  ARM:
   - fix the interaction of userspace irqchip VMs with in-kernel irqchip VMs
   - make sure we can build 32-bit KVM/ARM with gcc-8.

  x86:
   - fixes for AMD SEV
   - fixes for Intel nested VMX, emulated UMIP and a dump_stack() on VM startup
   - fixes for async page fault migration
   - small optimization to PV TLB flush (new in 4.16-rc1)
   - syzkaller fixes

  Generic:
   - compiler warning fixes
   - syzkaller fixes
   - more improvements to the kvm_stat tool

  Two more small Spectre fixes are going to reach you via Ingo"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (40 commits)
  KVM: SVM: Fix SEV LAUNCH_SECRET command
  KVM: SVM: install RSM intercept
  KVM: SVM: no need to call access_ok() in LAUNCH_MEASURE command
  include: psp-sev: Capitalize invalid length enum
  crypto: ccp: Fix sparse, use plain integer as NULL pointer
  KVM: X86: Avoid traversing all the cpus for pv tlb flush when steal time is disabled
  x86/kvm: Make parse_no_xxx __init for kvm
  KVM: x86: fix backward migration with async_PF
  kvm: fix warning for non-x86 builds
  kvm: fix warning for CONFIG_HAVE_KVM_EVENTFD builds
  tools/kvm_stat: print 'Total' line for multiple events only
  tools/kvm_stat: group child events indented after parent
  tools/kvm_stat: separate drilldown and fields filtering
  tools/kvm_stat: eliminate extra guest/pid selection dialog
  tools/kvm_stat: mark private methods as such
  tools/kvm_stat: fix debugfs handling
  tools/kvm_stat: print error on invalid regex
  tools/kvm_stat: fix crash when filtering out all non-child trace events
  tools/kvm_stat: avoid 'is' for equality checks
  tools/kvm_stat: use a more pythonic way to iterate over dictionaries
  ...
2018-02-26 09:28:35 -08:00
Linus Torvalds
c23a757591 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "A small set of fixes:

   - UAPI data type correction for hyperv

   - correct the cpu cores field in /proc/cpuinfo on CPU hotplug

   - return proper error code in the resctrl file system failure path to
     avoid silent subsequent failures

   - correct a subtle accounting issue in the new vector allocation code
     which went unnoticed for a while and caused suspend/resume
     failures"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/topology: Update the 'cpu cores' field in /proc/cpuinfo correctly across CPU hotplug operations
  x86/topology: Fix function name in documentation
  x86/intel_rdt: Fix incorrect returned value when creating rdgroup sub-directory in resctrl file system
  x86/apic/vector: Handle vector release on CPU unplug correctly
  genirq/matrix: Handle CPU offlining proper
  x86/headers/UAPI: Use __u64 instead of u64 in <uapi/asm/hyperv.h>
2018-02-25 16:58:55 -08:00
David S. Miller
f74290fdb3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-24 00:04:20 -05:00
Radim Krčmář
fe2a3027e7 KVM: x86: fix backward migration with async_PF
Guests on new hypersiors might set KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT
bit when enabling async_PF, but this bit is reserved on old hypervisors,
which results in a failure upon migration.

To avoid breaking different cases, we are checking for CPUID feature bit
before enabling the feature and nothing else.

Fixes: 52a5c155cf ("KVM: async_pf: Let guest support delivery of async_pf from guest mode")
Cc: <stable@vger.kernel.org>
Reviewed-by: Wanpeng Li <wanpengli@tencent.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-02-24 01:43:48 +01:00
Linus Torvalds
938e1426e2 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Two bugfixes, one v4.16 regression fix, and two documentation fixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: designware: Consider SCL GPIO optional
  i2c: busses: i2c-sirf: Fix spelling: "formular" -> "formula".
  i2c: bcm2835: Set up the rising/falling edge delays
  i2c: i801: Add missing documentation entries for Braswell and Kaby Lake
  i2c: designware: must wait for enable
2018-02-23 14:41:14 -08:00
Linus Torvalds
8961ca441b exynos, meson, ipuv3, secondary gpu, cirrus, edid quirk fixes
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Merge tag 'drm-fixes-for-v4.16-rc3' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "A bunch of fixes for rc3:

  Exynos:
   - fixes for using monotonic timestamps
   - register definitions
   - removal of unused file

  ipu-v3L
   - minor changes
   - make some register arrays const+static
   - fix some leaks

  meson:
   - fix for vsync

  atomic:
   - fix for memory leak

  EDID parser:
   - add quirks for some more non-desktop devices
   - 6-bit panel fix.

  drm_mm:
   - fix a bug in the core drm mm hole handling

  cirrus:
   - fix lut loading regression

  Lastly there is a deadlock fix around runtime suspend for secondary
  GPUs.

  There was a deadlock between one thread trying to wait for a workqueue
  job to finish in the runtime suspend path, and the workqueue job it
  was waiting for in turn waiting for a runtime_get_sync to return.

  The fixes avoids it by not doing the runtime sync in the workqueue as
  then we always wait for all those tasks to complete before we runtime
  suspend"

* tag 'drm-fixes-for-v4.16-rc3' of git://people.freedesktop.org/~airlied/linux: (25 commits)
  drm/tve200: fix kernel-doc documentation comment include
  drm/edid: quirk Sony PlayStation VR headset as non-desktop
  drm/edid: quirk Windows Mixed Reality headsets as non-desktop
  drm/edid: quirk Oculus Rift headsets as non-desktop
  drm/meson: fix vsync buffer update
  drm: Handle unexpected holes in color-eviction
  drm: exynos: Use proper macro definition for HDMI_I2S_PIN_SEL_1
  drm/exynos: remove exynos_drm_rotator.h
  drm/exynos: g2d: Delete an error message for a failed memory allocation in two functions
  drm/exynos: fix comparison to bitshift when dealing with a mask
  drm/exynos: g2d: use monotonic timestamps
  drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA
  gpu: ipu-csi: add 10/12-bit grayscale support to mbus_code_to_bus_cfg
  gpu: ipu-cpmem: add 16-bit grayscale support to ipu_cpmem_set_image
  gpu: ipu-v3: prg: fix device node leak in ipu_prg_lookup_by_phandle
  gpu: ipu-v3: pre: fix device node leak in ipu_pre_lookup_by_phandle
  drm/amdgpu: Fix deadlock on runtime suspend
  drm/radeon: Fix deadlock on runtime suspend
  drm/nouveau: Fix deadlock on runtime suspend
  drm: Allow determining if current task is output poll worker
  ...
2018-02-23 10:31:31 -08:00
Mauro Carvalho Chehab
9c171cdf22 media: dvb: add continuity error indicators for memory mapped buffers
While userspace can detect discontinuity errors, it is useful to
also let Kernelspace reporting discontinuity, as it can help to
identify if the data loss happened either at Kernel or userspace side.

Update documentation accordingly.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-02-23 05:28:41 -05:00
Dou Liyang
0c52f7c549 x86/topology: Fix function name in documentation
topology_sibling_cpumask() is the correct thread-related topology
function in the kernel:

  s/topology_sibling_mask/topology_sibling_cpumask

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: corbet@lwn.net
Cc: linux-doc@vger.kernel.org
Link: http://lkml.kernel.org/r/20180222084812.14497-1-douly.fnst@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-23 08:40:12 +01:00
Randy Dunlap
6d516d6798 PCI: Update location of pci.ids file
Update the URL for the pci.ids file and add locations for its mirrors.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
Cc: Martin Mares <mj@ucw.cz>
Cc: Michal Vaner <vorner@vorner.cz>
2018-02-22 15:00:43 -06:00
Dave Airlie
dfe8db2237 Fixes for 4.16. I contains fixes for deadlock on runtime suspend on few
drivers, a memory leak on non-blocking commits, a crash on color-eviction.
 The is also meson and edid fixes, plus a fix for a doc warning.
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Merge tag 'drm-misc-fixes-2018-02-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Fixes for 4.16. I contains fixes for deadlock on runtime suspend on few
drivers, a memory leak on non-blocking commits, a crash on color-eviction.
The is also meson and edid fixes, plus a fix for a doc warning.

* tag 'drm-misc-fixes-2018-02-21' of git://anongit.freedesktop.org/drm/drm-misc:
  drm/tve200: fix kernel-doc documentation comment include
  drm/meson: fix vsync buffer update
  drm: Handle unexpected holes in color-eviction
  drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA
  drm/amdgpu: Fix deadlock on runtime suspend
  drm/radeon: Fix deadlock on runtime suspend
  drm/nouveau: Fix deadlock on runtime suspend
  drm: Allow determining if current task is output poll worker
  workqueue: Allow retrieval of current task's work struct
  drm/atomic: Fix memleak on ERESTARTSYS during non-blocking commits
2018-02-22 08:39:26 +10:00
Jarkko Nikula
1540779883 i2c: i801: Add missing documentation entries for Braswell and Kaby Lake
Commits adding PCI IDs for Intel Braswell and Kaby Lake PCH-H lacked the
respective Kconfig and Documentation/i2c/busses/i2c-i801 change. Add
them now.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-02-21 09:17:20 +01:00
Xue Liu
1f74edf9a5 ieee802154: Add device tree documentation for MCR20A
Signed-off-by: Xue Liu <liuxuenetmail@gmail.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
2018-02-21 09:08:15 +01:00
Jani Nikula
30a3317ddc drm/tve200: fix kernel-doc documentation comment include
The DOC: line acts as an identifier for the :doc: include. Fixes:

./drivers/gpu/drm/tve200/tve200_drv.c:1: warning: no structured comments found

Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180220142008.9330-1-jani.nikula@intel.com
2018-02-21 09:26:38 +02:00
David S. Miller
f5c0c6f429 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-19 18:46:11 -05:00
Linus Torvalds
79c0ef3e85 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Prevent index integer overflow in ptr_ring, from Jason Wang.

 2) Program mvpp2 multicast filter properly, from Mikulas Patocka.

 3) The bridge brport attribute file is write only and doesn't have a
    ->show() method, don't blindly invoke it. From Xin Long.

 4) Inverted mask used in genphy_setup_forced(), from Ingo van Lil.

 5) Fix multiple definition issue with if_ether.h UAPI header, from
    Hauke Mehrtens.

 6) Fix GFP_KERNEL usage in atomic in RDS protocol code, from Sowmini
    Varadhan.

 7) Revert XDP redirect support from thunderx driver, it is not
    implemented properly. From Jesper Dangaard Brouer.

 8) Fix missing RTNL protection across some tipc operations, from Ying
    Xue.

 9) Return the correct IV bytes in the TLS getsockopt code, from Boris
    Pismenny.

10) Take tclassid into consideration properly when doing FIB rule
    matching. From Stefano Brivio.

11) cxgb4 device needs more PCI VPD quirks, from Casey Leedom.

12) TUN driver doesn't align frags properly, and we can end up doing
    unaligned atomics on misaligned metadata. From Eric Dumazet.

13) Fix various crashes found using DEBUG_PREEMPT in rmnet driver, from
    Subash Abhinov Kasiviswanathan.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (56 commits)
  tg3: APE heartbeat changes
  mlxsw: spectrum_router: Do not unconditionally clear route offload indication
  net: qualcomm: rmnet: Fix possible null dereference in command processing
  net: qualcomm: rmnet: Fix warning seen with 64 bit stats
  net: qualcomm: rmnet: Fix crash on real dev unregistration
  sctp: remove the left unnecessary check for chunk in sctp_renege_events
  rxrpc: Work around usercopy check
  tun: fix tun_napi_alloc_frags() frag allocator
  udplite: fix partial checksum initialization
  skbuff: Fix comment mis-spelling.
  dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock
  PCI/cxgb4: Extend T3 PCI quirk to T4+ devices
  cxgb4: fix trailing zero in CIM LA dump
  cxgb4: free up resources of pf 0-3
  fib_semantics: Don't match route with mismatching tclassid
  NFC: llcp: Limit size of SDP URI
  tls: getsockopt return record sequence number
  tls: reset the crypto info if copy_from_user fails
  tls: retrun the correct IV in getsockopt
  docs: segmentation-offloads.txt: add SCTP info
  ...
2018-02-19 11:58:19 -08:00
Geert Uytterhoeven
d40ade43e3 dt-bindings: power: Fix "debounce-interval" property misspelling
"debounce_interval" was never supported.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2018-02-18 21:05:43 -06:00
Linus Torvalds
b63b1e5730 ACPI updates for v4.16-rc2
- Revert a problematic EC driver change from the 4.13 cycle that
    introduced a system resume regression on Thinkpad X240 (Rafael
    Wysocki).
 
  - Clean up device tables handling in the ACPI core and the related
    part of the device properties framework (Andy Shevchenko).
 
  - Update the sysfs ABI documentatio of the dock and the INT3407
    special device drivers (Aishwarya Pant).
 
  - Add an expected switch fall-through marker to the SPCR table
    parsing code (Gustavo Silva).
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Merge tag 'acpi-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix a system resume regression from the 4.13 cycle, clean up
  device table handling in the ACPI core, update sysfs ABI documentation
  of a couple of drivers and add an expected switch fall-through marker
  to the SPCR table parsing code.

  Specifics:

   - Revert a problematic EC driver change from the 4.13 cycle that
     introduced a system resume regression on Thinkpad X240 (Rafael
     Wysocki).

   - Clean up device tables handling in the ACPI core and the related
     part of the device properties framework (Andy Shevchenko).

   - Update the sysfs ABI documentatio of the dock and the INT3407
     special device drivers (Aishwarya Pant).

   - Add an expected switch fall-through marker to the SPCR table
     parsing code (Gustavo Silva)"

* tag 'acpi-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: dock: document sysfs interface
  ACPI / DPTF: Document dptf_power sysfs atttributes
  device property: Constify device_get_match_data()
  ACPI / bus: Rename acpi_get_match_data() to acpi_device_get_match_data()
  ACPI / bus: Remove checks in acpi_get_match_data()
  ACPI / bus: Do not traverse through non-existed device table
  ACPI: SPCR: Mark expected switch fall-through in acpi_parse_spcr
  ACPI / EC: Restore polling during noirq suspend/resume phases
2018-02-15 14:50:32 -08:00
Linus Torvalds
8bb8966603 Power management updates for v4.16-rc2
- Fix a recently introduced build issue related to cpuidle by
    covering all of the relevant combinations of Kconfig options
    in its header (Rafael Wysocki).
 
  - Add missing invocation of pm_runtime_drop_link() to the
    !CONFIG_SRCU variant of __device_link_del() (Lukas Wunner).
 
  - Fix unbalanced IRQ enable in the wakeup interrupts framework
    (Tony Lindgren).
 
  - Update cpuidle sysfs ABI documentation (Aishwarya Pant).
 
  - Use GFP_KERNEL instead of GFP_ATOMIC for allocating memory
    in dev_pm_opp_init_cpufreq_table() (Jia-Ju Bai).
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Merge tag 'pm-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix a recently introduced build issue related to cpuidle and two
  bugs in the PM core, update cpuidle documentation and clean up memory
  allocations in the operating performance points (OPP) framework.

  Specifics:

   - Fix a recently introduced build issue related to cpuidle by
     covering all of the relevant combinations of Kconfig options
     in its header (Rafael Wysocki).

   - Add missing invocation of pm_runtime_drop_link() to the
     !CONFIG_SRCU variant of __device_link_del() (Lukas Wunner).

   - Fix unbalanced IRQ enable in the wakeup interrupts framework
     (Tony Lindgren).

   - Update cpuidle sysfs ABI documentation (Aishwarya Pant).

   - Use GFP_KERNEL instead of GFP_ATOMIC for allocating memory
     in dev_pm_opp_init_cpufreq_table() (Jia-Ju Bai)"

* tag 'pm-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: cpuidle: Fix cpuidle_poll_state_init() prototype
  PM / runtime: Update links_count also if !CONFIG_SRCU
  PM / wakeirq: Fix unbalanced IRQ enable for wakeirq
  Documentation/ABI: update cpuidle sysfs documentation
  opp: cpu: Replace GFP_ATOMIC with GFP_KERNEL in dev_pm_opp_init_cpufreq_table
2018-02-15 14:40:01 -08:00
Linus Torvalds
1388c80438 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "Misc fixes:

   - fix rq->lock lockdep annotation bug

   - fix/improve update_curr_rt() and update_curr_dl() accounting

   - update documentation

   - remove unused macro"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/cpufreq: Remove unused SUGOV_KTHREAD_PRIORITY macro
  sched/core: Fix DEBUG_SPINLOCK annotation for rq->lock
  sched/rt: Make update_curr_rt() more accurate
  sched/deadline: Make update_curr_dl() more accurate
  membarrier-sync-core: Document architecture support
2018-02-15 09:28:47 -08:00
Linus Torvalds
e9e3b3002f Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
 "This contains two qspinlock fixes and three documentation and comment
  fixes"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/semaphore: Update the file path in documentation
  locking/atomic/bitops: Document and clarify ordering semantics for failed test_and_{}_bit()
  locking/qspinlock: Ensure node->count is updated before initialising node
  locking/qspinlock: Ensure node is initialised before updating prev->next
  Documentation/locking/mutex-design: Update to reflect latest changes
2018-02-15 09:05:26 -08:00
Rafael J. Wysocki
822ffaa581 Merge branches 'pm-cpuidle' and 'pm-opp'
* pm-cpuidle:
  PM: cpuidle: Fix cpuidle_poll_state_init() prototype
  Documentation/ABI: update cpuidle sysfs documentation

* pm-opp:
  opp: cpu: Replace GFP_ATOMIC with GFP_KERNEL in dev_pm_opp_init_cpufreq_table
2018-02-15 12:01:53 +01:00
Wadim Egorov
0e47079b6c net: phy: dp83867: Add documentation for CLK_OUT pin muxing
Add documentation of ti,clk-output-sel which can be used to select
a specific clock for CLK_OUT.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-14 15:33:43 -05:00
Daniel Axtens
a677088922 docs: segmentation-offloads.txt: add SCTP info
Most of this is extracted from 90017accff ("sctp: Add GSO support"),
with some extra text about GSO_BY_FRAGS and the need to check for it.

Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-14 14:52:39 -05:00
Daniel Axtens
bc3c2431d4 docs: segmentation-offloads.txt: Fix ref to SKB_GSO_TUNNEL_REMCSUM
The doc originally called it SKB_GSO_REMCSUM. Fix it.

Fixes: f7a6272bf3 ("Documentation: Add documentation for TSO and GSO features")
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-14 14:52:39 -05:00
Daniel Axtens
a65820e695 docs: segmentation-offloads.txt: update for UFO depreciation
UFO is deprecated except for tuntap and packet per 0c19f846d5,
("net: accept UFO datagrams from tuntap and packet"). Update UFO
docs to reflect this.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-14 14:52:38 -05:00
Linus Torvalds
61f14c015f MIPS changes for 4.16-rc2
A single change (and associated DT binding update) to allow the address
 of the MIPS Cluster Power Controller (CPC) to be chosen by DT, which
 allows SMP to work on generic MIPS kernels where the bootloader hasn't
 configured the CPC address (i.e. the new Ranchu platform).
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Merge tag 'mips_4.16_2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips

Pull MIPS fix from James Hogan:
 "A single change (and associated DT binding update) to allow the
  address of the MIPS Cluster Power Controller (CPC) to be chosen by DT,
  which allows SMP to work on generic MIPS kernels where the bootloader
  hasn't configured the CPC address (i.e. the new Ranchu platform)"

* tag 'mips_4.16_2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
  MIPS: CPC: Map registers using DT in mips_cpc_default_phys_base()
  dt-bindings: Document mti,mips-cpc binding
2018-02-13 09:35:17 -08:00
Aishwarya Pant
0a65e12515 libata: update documentation for sysfs interfaces
Dcoumentation has been added by parsing through git commit history and
reading code. This might be useful for scripting and tracking changes in
the ABI.

I do not have complete descriptions for the following 3 attributes; they
have been annotated with the comment [to be documented] -

	/sys/class/scsi_host/hostX/ahci_port_cmd
	/sys/class/scsi_host/hostX/ahci_host_caps
	/sys/class/scsi_host/hostX/ahci_host_cap2

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2018-02-13 06:41:02 -08:00
Aishwarya Pant
b1c7fe26e0 libata: transport: cleanup documentation of sysfs interface
Clean-up the documentation of sysfs interfaces to be in the same format
as described in Documentation/ABI/README. This will be useful for
tracking changes in the ABI. Attributes are grouped by function (device,
link or port) and then by date added.

This patch also adds documentation for one attribute -
/sys/class/ata_port/ataX/port_no

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2018-02-13 06:38:41 -08:00
Will Deacon
61e02392d3 locking/atomic/bitops: Document and clarify ordering semantics for failed test_and_{}_bit()
A test_and_{}_bit() operation fails if the value of the bit is such that
the modification does not take place. For example, if test_and_set_bit()
returns 1. In these cases, follow the behaviour of cmpxchg and allow the
operation to be unordered. This also applies to test_and_set_bit_lock()
if the lock is found to be be taken already.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1518528619-20049-1-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-13 14:55:53 +01:00
Andy Shevchenko
b4bf200bc0 auxdisplay: Move arm-charlcd binding to correct folder
This is a follow up to the commit

  00846a4425 ("auxdisplay: Move arm-charlcd.c to drivers/auxdisplay folder")

for Device Tree binding.

No functional change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2018-02-12 08:41:38 -06:00
Dong Aisheng
2623ab651f dt-bindings: thermal: imx: update the binding to new method
Due to the old method has already been marked as deprecated in binding
doc, so obviously it's better to update the example to new bindings
as well.

Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2018-02-12 08:39:50 -06:00
Aishwarya Pant
22029845ad ACPI: dock: document sysfs interface
Description has been collected from git commit history and reading
through code.

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-12 11:24:55 +01:00
Aishwarya Pant
6b4af818c7 ACPI / DPTF: Document dptf_power sysfs atttributes
The descriptions have been collected from git commit logs and reading
through code.

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-12 11:22:47 +01:00
Aishwarya Pant
b6d8ef86cb Documentation/ABI: update cpuidle sysfs documentation
Update cpuidle documentation using git logs and existing documentation
in Documentation/cpuidle/sysfs.txt. This might be useful for scripting
and tracking changes in the ABI.

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-12 11:03:21 +01:00
Juri Lelli
79e9023826 Documentation/locking/mutex-design: Update to reflect latest changes
Commit 3ca0ff571b ("locking/mutex: Rework mutex::owner") reworked the
basic mutex implementation to deal with several problems. Documentation
was however left unchanged and became stale.

Update mutex-design.txt to reflect changes introduced by the above commit.

Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-doc@vger.kernel.org
Link: http://lkml.kernel.org/r/20180209160114.19980-1-juri.lelli@redhat.com
[ Small readability tweaks to the text. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-11 12:28:58 +01:00
Linus Torvalds
15303ba5d1 KVM changes for 4.16
ARM:
 - Include icache invalidation optimizations, improving VM startup time
 
 - Support for forwarded level-triggered interrupts, improving
   performance for timers and passthrough platform devices
 
 - A small fix for power-management notifiers, and some cosmetic changes
 
 PPC:
 - Add MMIO emulation for vector loads and stores
 
 - Allow HPT guests to run on a radix host on POWER9 v2.2 CPUs without
   requiring the complex thread synchronization of older CPU versions
 
 - Improve the handling of escalation interrupts with the XIVE interrupt
   controller
 
 - Support decrement register migration
 
 - Various cleanups and bugfixes.
 
 s390:
 - Cornelia Huck passed maintainership to Janosch Frank
 
 - Exitless interrupts for emulated devices
 
 - Cleanup of cpuflag handling
 
 - kvm_stat counter improvements
 
 - VSIE improvements
 
 - mm cleanup
 
 x86:
 - Hypervisor part of SEV
 
 - UMIP, RDPID, and MSR_SMI_COUNT emulation
 
 - Paravirtualized TLB shootdown using the new KVM_VCPU_PREEMPTED bit
 
 - Allow guests to see TOPOEXT, GFNI, VAES, VPCLMULQDQ, and more AVX512
   features
 
 - Show vcpu id in its anonymous inode name
 
 - Many fixes and cleanups
 
 - Per-VCPU MSR bitmaps (already merged through x86/pti branch)
 
 - Stable KVM clock when nesting on Hyper-V (merged through x86/hyperv)
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Merge tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Radim Krčmář:
 "ARM:

   - icache invalidation optimizations, improving VM startup time

   - support for forwarded level-triggered interrupts, improving
     performance for timers and passthrough platform devices

   - a small fix for power-management notifiers, and some cosmetic
     changes

  PPC:

   - add MMIO emulation for vector loads and stores

   - allow HPT guests to run on a radix host on POWER9 v2.2 CPUs without
     requiring the complex thread synchronization of older CPU versions

   - improve the handling of escalation interrupts with the XIVE
     interrupt controller

   - support decrement register migration

   - various cleanups and bugfixes.

  s390:

   - Cornelia Huck passed maintainership to Janosch Frank

   - exitless interrupts for emulated devices

   - cleanup of cpuflag handling

   - kvm_stat counter improvements

   - VSIE improvements

   - mm cleanup

  x86:

   - hypervisor part of SEV

   - UMIP, RDPID, and MSR_SMI_COUNT emulation

   - paravirtualized TLB shootdown using the new KVM_VCPU_PREEMPTED bit

   - allow guests to see TOPOEXT, GFNI, VAES, VPCLMULQDQ, and more
     AVX512 features

   - show vcpu id in its anonymous inode name

   - many fixes and cleanups

   - per-VCPU MSR bitmaps (already merged through x86/pti branch)

   - stable KVM clock when nesting on Hyper-V (merged through
     x86/hyperv)"

* tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (197 commits)
  KVM: PPC: Book3S: Add MMIO emulation for VMX instructions
  KVM: PPC: Book3S HV: Branch inside feature section
  KVM: PPC: Book3S HV: Make HPT resizing work on POWER9
  KVM: PPC: Book3S HV: Fix handling of secondary HPTEG in HPT resizing code
  KVM: PPC: Book3S PR: Fix broken select due to misspelling
  KVM: x86: don't forget vcpu_put() in kvm_arch_vcpu_ioctl_set_sregs()
  KVM: PPC: Book3S PR: Fix svcpu copying with preemption enabled
  KVM: PPC: Book3S HV: Drop locks before reading guest memory
  kvm: x86: remove efer_reload entry in kvm_vcpu_stat
  KVM: x86: AMD Processor Topology Information
  x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested
  kvm: embed vcpu id to dentry of vcpu anon inode
  kvm: Map PFN-type memory regions as writable (if possible)
  x86/kvm: Make it compile on 32bit and with HYPYERVISOR_GUEST=n
  KVM: arm/arm64: Fixup userspace irqchip static key optimization
  KVM: arm/arm64: Fix userspace_irqchip_in_use counting
  KVM: arm/arm64: Fix incorrect timer_is_pending logic
  MAINTAINERS: update KVM/s390 maintainers
  MAINTAINERS: add Halil as additional vfio-ccw maintainer
  MAINTAINERS: add David as a reviewer for KVM/s390
  ...
2018-02-10 13:16:35 -08:00
Mathieu Desnoyers
6a546c7e69 membarrier-sync-core: Document architecture support
Ensure we gather architecture requirements about each architecture
supporting the "sync_core" membarrier command in a single file under
Documentation/features.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrea Parri <parri.andrea@gmail.com>
Cc: Andrew Hunter <ahh@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Avi Kivity <avi@scylladb.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Dave Watson <davejwatson@fb.com>
Cc: David Sehr <sehr@google.com>
Cc: Greg Hackmann <ghackmann@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Maged Michael <maged.michael@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Link: http://lkml.kernel.org/r/1518208256-22034-1-git-send-email-mathieu.desnoyers@efficios.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-02-10 12:45:10 +01:00
Linus Torvalds
dff839f27d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Heiko Carstens:
 "The main thing in this merge is the defense for the Spectre
  vulnerabilities. But there are other updates as well, the changes in
  more detail:

   - An s390 specific implementation of the array_index_mask_nospec
     function to the defense against spectre v1

   - Two patches to utilize the new PPA-12/PPA-13 instructions to run
     the kernel and/or user space with reduced branch predicton.

   - The s390 variant of the 'retpoline' spectre v2 defense called
     'expoline'. There is no return instruction for s390, instead an
     indirect branch is used for function return

     The s390 defense mechanism for indirect branches works by using an
     execute-type instruction with the indirect branch as the target of
     the execute. In effect that turns off the prediction for the
     indirect branch.

   - Scrub registers in entry.S that contain user controlled values to
     prevent the speculative use of these values.

   - Re-add the second parameter for the s390 specific runtime
     instrumentation system call and move the header file to uapi. The
     second parameter will continue to do nothing but older kernel
     versions only accepted valid real-time signal numbers. The details
     will be documented in the man-page for the system call.

   - Corrections and improvements for the s390 specific documentation

   - Add a line to /proc/sysinfo to display the CPU model dependent
     license-internal-code identifier

   - A header file include fix for eadm.

   - An error message fix in the kprobes code.

   - The removal of an outdated ARCH_xxx select statement"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/kconfig: Remove ARCH_WANTS_PROT_NUMA_PROT_NONE select
  s390: introduce execute-trampolines for branches
  s390: run user space and KVM guests with modified branch prediction
  s390: add options to change branch prediction behaviour for the kernel
  s390/alternative: use a copy of the facility bit mask
  s390: add optimized array_index_mask_nospec
  s390: scrub registers on kernel entry and KVM exit
  s390/cio: fix kernel-doc usage
  s390/runtime_instrumentation: re-add signum system call parameter
  s390/cpum_cf: correct counter number of LAST_HOST_TRANSLATIONS
  s390/kprobes: Fix %p uses in error messages
  s390/runtime instrumentation: provide uapi header file
  s390/sysinfo: add and display licensed internal code identifier
  s390/docs: reword airq section
  s390/docs: mention subchannel types
  s390/cmf: fix kerneldoc
  s390/eadm: fix CONFIG_BLOCK include dependency
2018-02-09 09:58:37 -08:00
Linus Torvalds
54ce685cae More ACPI updates for v4.16-rc1
- Update the ACPICA kernel code to upstream revision 20180105 including:
    * Assorted fixes (Jung-uk Kim).
    * Support for X32 ABI compilation (Anuj Mittal).
    * Update of ACPICA copyrights to 2018 (Bob Moore).
 
  - Prepare for future modifications to avoid executing the _STA control
    method too early (Hans de Goede).
 
  - Make the processor performance control library code ignore _PPC
    notifications if they cannot be handled and fix up the C1 idle
    state definition when it is used as a fallback state (Chen Yu,
    Yazen Ghannam).
 
  - Make it possible to use the SPCR table on x86 and to replace the
    original IORT table with a new one from initrd (Prarit Bhargava,
    Shunyong Yang).
 
  - Add battery-related quirks for Asus UX360UA and UX410UAK and add
    quirks for table parsing on Dell XPS 9570 and Precision M5530
    (Kai Heng Feng).
 
  - Address static checker warnings in the CPPC code (Gustavo Silva).
 
  - Avoid printing a raw pointer to the kernel log in the smart
    battery driver (Greg Kroah-Hartman).
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Merge tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These are mostly fixes and cleanups, a few new quirks, a couple of
  updates related to the handling of ACPI tables and ACPICA copyrights
  refreshment.

  Specifics:

   - Update the ACPICA kernel code to upstream revision 20180105
     including:
       * Assorted fixes (Jung-uk Kim)
       * Support for X32 ABI compilation (Anuj Mittal)
       * Update of ACPICA copyrights to 2018 (Bob Moore)

   - Prepare for future modifications to avoid executing the _STA
     control method too early (Hans de Goede)

   - Make the processor performance control library code ignore _PPC
     notifications if they cannot be handled and fix up the C1 idle
     state definition when it is used as a fallback state (Chen Yu,
     Yazen Ghannam)

   - Make it possible to use the SPCR table on x86 and to replace the
     original IORT table with a new one from initrd (Prarit Bhargava,
     Shunyong Yang)

   - Add battery-related quirks for Asus UX360UA and UX410UAK and add
     quirks for table parsing on Dell XPS 9570 and Precision M5530 (Kai
     Heng Feng)

   - Address static checker warnings in the CPPC code (Gustavo Silva)

   - Avoid printing a raw pointer to the kernel log in the smart battery
     driver (Greg Kroah-Hartman)"

* tag 'acpi-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: sbshc: remove raw pointer from printk() message
  ACPI: SPCR: Make SPCR available to x86
  ACPI / CPPC: Use 64-bit arithmetic instead of 32-bit
  ACPI / tables: Add IORT to injectable table list
  ACPI / bus: Parse tables as term_list for Dell XPS 9570 and Precision M5530
  ACPICA: Update version to 20180105
  ACPICA: All acpica: Update copyrights to 2018
  ACPI / processor: Set default C1 idle state description
  ACPI / battery: Add quirk for Asus UX360UA and UX410UAK
  ACPI: processor_perflib: Do not send _PPC change notification if not ready
  ACPI / scan: Use acpi_bus_get_status() to initialize ACPI_TYPE_DEVICE devs
  ACPI / bus: Do not call _STA on battery devices with unmet dependencies
  PCI: acpiphp_ibm: prepare for acpi_get_object_info() no longer returning status
  ACPI: export acpi_bus_get_status_handle()
  ACPICA: Add a missing pair of parentheses
  ACPICA: Prefer ACPI_TO_POINTER() over ACPI_ADD_PTR()
  ACPICA: Avoid NULL pointer arithmetic
  ACPICA: Linux: add support for X32 ABI compilation
  ACPI / video: Use true for boolean value
2018-02-09 09:44:25 -08:00
Linus Torvalds
a051c14b8d More power management updates for v4.16-rc1
- Drop the at32ap-cpufreq driver which is useless after the
    removal of the corresponding arch (Corentin LABBE).
 
  - Fix a regression from the 4.14 cycle in the APM idle driver by
    making it initialize the polling state properly (Rafael Wysocki).
 
  - Fix a crash on failing system suspend due to a missing check in
    the cpufreq core (Bo Yan).
 
  - Make the intel_pstate driver initialize the hardware-managed
    P-state control (HWP) feature on CPU0 upon resume from system
    suspend if HWP had been enabled before the system was suspended
    (Chen Yu).
 
  - Fix up the SCPI cpufreq driver after recent changes (Sudeep Holla,
    Wei Yongjun).
 
  - Avoid pointer subtractions during frequency table walks in cpufreq
    (Dominik Brodowski).
 
  - Avoid the check for ProcFeedback in ST/CZ in the cpufreq driver
    for AMD processors and add a MODULE_ALIAS for cpufreq on ARM IMX
    (Akshu Agrawal, Nicolas Chauvet).
 
  - Fix the prototype of swsusp_arch_resume() on x86 (Arnd Bergmann).
 
  - Fix up the parsing of power domains DT data (Ulf Hansson).
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Merge tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These are mostly fixes and cleanups and removal of the no longer
  needed at32ap-cpufreq driver.

  Specifics:

   - Drop the at32ap-cpufreq driver which is useless after the removal
     of the corresponding arch (Corentin LABBE).

   - Fix a regression from the 4.14 cycle in the APM idle driver by
     making it initialize the polling state properly (Rafael Wysocki).

   - Fix a crash on failing system suspend due to a missing check in the
     cpufreq core (Bo Yan).

   - Make the intel_pstate driver initialize the hardware-managed
     P-state control (HWP) feature on CPU0 upon resume from system
     suspend if HWP had been enabled before the system was suspended
     (Chen Yu).

   - Fix up the SCPI cpufreq driver after recent changes (Sudeep Holla,
     Wei Yongjun).

   - Avoid pointer subtractions during frequency table walks in cpufreq
     (Dominik Brodowski).

   - Avoid the check for ProcFeedback in ST/CZ in the cpufreq driver for
     AMD processors and add a MODULE_ALIAS for cpufreq on ARM IMX (Akshu
     Agrawal, Nicolas Chauvet).

   - Fix the prototype of swsusp_arch_resume() on x86 (Arnd Bergmann).

   - Fix up the parsing of power domains DT data (Ulf Hansson)"

* tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  arm: imx: Add MODULE_ALIAS for cpufreq
  cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx()
  cpufreq: intel_pstate: Enable HWP during system resume on CPU0
  cpufreq: scpi: fix error return code in scpi_cpufreq_init()
  x86: hibernate: fix swsusp_arch_resume() prototype
  PM / domains: Fix up domain-idle-states OF parsing
  cpufreq: scpi: fix static checker warning cdev isn't an ERR_PTR
  cpufreq: remove at32ap-cpufreq
  cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZ
  x86: PM: Make APM idle driver initialize polling state
  cpufreq: Skip cpufreq resume if it's not suspended
2018-02-09 09:40:33 -08:00
Linus Torvalds
9d21874da8 Merge branch 'idr-2018-02-06' of git://git.infradead.org/users/willy/linux-dax
Pull idr updates from Matthew Wilcox:

 - test-suite improvements

 - replace the extended API by improving the normal API

 - performance improvement for IDRs which are 1-based rather than
   0-based

 - add documentation

* 'idr-2018-02-06' of git://git.infradead.org/users/willy/linux-dax:
  idr: Add documentation
  idr: Make 1-based IDRs more efficient
  idr: Warn if old iterators see large IDs
  idr: Rename idr_for_each_entry_ext
  idr: Remove idr_alloc_ext
  cls_u32: Convert to idr_alloc_u32
  cls_u32: Reinstate cyclic allocation
  cls_flower: Convert to idr_alloc_u32
  cls_bpf: Convert to use idr_alloc_u32
  cls_basic: Convert to use idr_alloc_u32
  cls_api: Convert to idr_alloc_u32
  net sched actions: Convert to use idr_alloc_u32
  idr: Add idr_alloc_u32 helper
  idr: Delete idr_find_ext function
  idr: Delete idr_replace_ext function
  idr: Delete idr_remove_ext function
  IDR test suite: Check handling negative end correctly
  idr test suite: Fix ida_test_random()
  radix tree test suite: Remove ARRAY_SIZE
2018-02-08 14:39:29 -08:00
Linus Torvalds
81153336eb AFS development
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Merge tag 'afs-next-20180208' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull afs updates from David Howells:
 "Four fixes:

   - add a missing put

   - two fixes to reset the address iteration cursor correctly

   - fix setting up the fileserver iteration cursor.

  Two cleanups:

   - remove some dead code

   - rearrange a function to be more logically laid out

  And one new feature:

   - Support AFS dynamic root.

     With this one should be able to do, say:

        mkdir /afs
        mount -t afs none /afs -o dyn

     to create a dynamic root and then, provided you have keyutils
     installed, do:

        ls /afs/grand.central.org

     and:

        ls /afs/umich.edu

     to list the root volumes of both those organisations' AFS cells
     without requiring any other setup (the kernel upcall to a program
     in the keyutils package to do DNS access as does NFS)"

* tag 'afs-next-20180208' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: Support the AFS dynamic root
  afs: Rearrange afs_select_fileserver() a little
  afs: Remove unused code
  afs: Fix server list handling
  afs: Need to clear responded flag in addr cursor
  afs: Fix missing cursor clearance
  afs: Add missing afs_put_cell()
2018-02-08 12:12:04 -08:00
Linus Torvalds
ef9417e8a9 IOMMU Updates for Linux v4.16
Including:
 
 	- 5-level page-table support for the Intel IOMMU.
 
 	- Error reporting improvements for the AMD IOMMU driver
 
 	- Additional DT bindings for ipmmu-vmsa (Renesas)
 
 	- Smaller fixes and cleanups
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Merge tag 'iommu-updates-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU updates from Joerg Roedel:
 "This time there are not a lot of changes coming from the IOMMU side.

  That is partly because I returned from my parental leave late in the
  development process and probably partly because everyone was busy with
  Spectre and Meltdown mitigation work and didn't find the time for
  IOMMU work. So here are the few changes that queued up for this merge
  window:

   - 5-level page-table support for the Intel IOMMU.

   - error reporting improvements for the AMD IOMMU driver

   - additional DT bindings for ipmmu-vmsa (Renesas)

   - small fixes and cleanups"

* tag 'iommu-updates-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu: Clean up of_iommu_init_fn
  iommu/ipmmu-vmsa: Remove redundant of_iommu_init_fn hook
  iommu/msm: Claim bus ops on probe
  iommu/vt-d: Enable 5-level paging mode in the PASID entry
  iommu/vt-d: Add a check for 5-level paging support
  iommu/vt-d: Add a check for 1GB page support
  iommu/vt-d: Enable upto 57 bits of domain address width
  iommu/vt-d: Use domain instead of cache fetching
  iommu/exynos: Don't unconditionally steal bus ops
  iommu/omap: Fix debugfs_create_*() usage
  iommu/vt-d: clean up pr_irq if request_threaded_irq fails
  iommu: Check the result of iommu_group_get() for NULL
  iommu/ipmmu-vmsa: Add r8a779(70|95) DT bindings
  iommu/ipmmu-vmsa: Add r8a7796 DT binding
  iommu/amd: Set the device table entry PPR bit for IOMMU V2 devices
  iommu/amd - Record more information about unknown events
2018-02-08 12:03:54 -08:00
Paul Burton
aece34cd57
dt-bindings: Document mti,mips-cpc binding
Document a binding for the MIPS Cluster Power Controller (CPC) that
allows the device tree to specify where the CPC registers are located.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@mips.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/18512/
Signed-off-by: James Hogan <jhogan@kernel.org>
2018-02-08 14:02:01 +00:00
Dominik Brodowski
ffd81dcfef cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx()
Pointer subtraction is slow and tedious. Therefore, replace all instances
where cpufreq_for_each_{valid_,}entry loops contained such substractions
with an iteration macro providing an index to the frequency_table entry.

Suggested-by: Al Viro <viro@ZenIV.linux.org.uk>
Link: http://lkml.kernel.org/r/20180120020237.GM13338@ZenIV.linux.org.uk
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-08 10:21:39 +01:00
Linus Torvalds
7e6127c124 linux-watchdog 4.16-rc1 merge window tag
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Merge tag 'linux-watchdog-4.16-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - new watchdog device drivers for Realtek RTD1295 and Spreadtrum SC9860
   platform

 - add support for the following devices: jz4780 SoC, AST25xx series SoC
   and r8a77970 SoC

 - convert to watchdog framework: i6300esb_wdt, xen_wdt and sp5100_tco

 - several fixes for watchdog core

 - remove at32ap700x and obsolete documentation

 - gpio: Convert to use GPIO descriptors

 - rename gemini into FTWDT010 as this IP block is generc from Faraday
   Technology

 - various clean-ups and small bugfixes

 - add Guenter Roeck as co-maintainer

 - change maintainers e-mail address

* tag 'linux-watchdog-4.16-rc1' of git://www.linux-watchdog.org/linux-watchdog: (74 commits)
  documentation: watchdog: remove documentation of w83697hf_wdt/w83697ug_wdt
  documentation: watchdog: remove documentation for ixp2000
  documentation: watchdog: remove documentation of at32ap700x_wdt
  watchdog: remove at32ap700x_wdt
  watchdog: sp5100_tco: Add support for recent FCH versions
  watchdog: sp5100-tco: Abort if watchdog is disabled by hardware
  watchdog: sp5100_tco: Use bit operations
  watchdog: sp5100_tco: Convert to use watchdog subsystem
  watchdog: sp5100_tco: Clean up function and variable names
  watchdog: sp5100_tco: Use dev_ print functions where possible
  watchdog: sp5100_tco: Match PCI device early
  watchdog: sp5100_tco: Clean up sp5100_tco_setupdevice
  watchdog: sp5100_tco: Use standard error codes
  watchdog: sp5100_tco: Use request_muxed_region where possible
  watchdog: sp5100_tco: Fix watchdog disable bit
  watchdog: sp5100_tco: Always use SP5100_IO_PM_{INDEX_REG,DATA_REG}
  watchdog: core: make sure the watchdog_worker is not deferred
  watchdog: mt7621: switch to using managed devm_watchdog_register_device()
  watchdog: mt7621: set WDOG_HW_RUNNING bit when appropriate
  watchdog: imx2_wdt: restore previous timeout after suspend+resume
  ...
2018-02-07 11:54:34 -08:00
Linus Torvalds
8578953687 MIPS changes for 4.16
These are the main MIPS changes for 4.16. Rough overview:
  - Basic support for the Ingenic JZ4770 based GCW Zero open-source
    handheld video game console
  - Support for the Ranchu board (used by Android emulator)
  - Various cleanups and misc improvements
 
 Fixes:
  - Fix generic platform's USB_*HCI_BIG_ENDIAN selects (4.9)
  - Fix vmlinuz default build when ZBOOT selected
  - Fix clean up of vmlinuz targets
  - Fix command line duplication (in preparation for Ingenic JZ4770)
 
 Miscellaneous:
  - Allow Processor ID reads to be to be optimised away by the compiler
    (improves performance when running in guest)
  - Push ARCH_MIGHT_HAVE_PC_SERIO/PARPORT down to platform level to
    disable on generic platform with Ranchu board support
  - Add helpers for assembler macro instructions for older assemblers
  - Use assembler macro instructions to support VZ, XPA & MSA operations
    on older assemblers, removing C wrapper duplication
  - Various improvements to VZ & XPA assembly wrappers
  - Add drivers/platform/mips/ to MIPS MAINTAINERS entry
 
 Minor cleanups:
  - Misc FPU emulation cleanups (removal of unnecessary include, moving
    macros to common header, checkpatch and sparse fixes)
  - Remove duplicate assignment of core in play_dead()
  - Remove duplication in watchpoint handling
  - Remove mips_dma_mapping_error() stub
  - Use NULL instead of 0 in prepare_ftrace_return()
  - Use proper kernel-doc Return keyword for
    __compute_return_epc_for_insn()
  - Remove duplicate semicolon in csum_fold()
 
 Platform support:
 
 Broadcom:
  - Enable ZBOOT on BCM47xx
 
 Generic platform:
  - Add Ranchu board support, used by Android emulator
  - Fix machine compatible string matching for Ranchu
  - Support GIC in EIC mode
 
 Ingenic platforms:
  - Add DT, defconfig and other support for JZ4770 SoC and GCW Zero
  - Support dynamnic machine types (i.e. JZ4740 / JZ4770 / JZ4780)
  - Add Ingenic JZ4770 CGU clocks
  - General Ingenic clk changes to prepare for JZ4770 SoC support
  - Use common command line handling code
  - Add DT vendor prefix to GCW (Game Consoles Worldwide)
 
 Loongson:
  - Add MAINTAINERS entry for Loongson2 and Loongson3 platforms
  - Drop 32-bit support for Loongson 2E/2F devices
  - Fix build failures due to multiple use of "MEM_RESERVED"
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Merge tag 'mips_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips

Pull MIPS updates from James Hogan:
 "These are the main MIPS changes for 4.16.

  Rough overview:

   (1) Basic support for the Ingenic JZ4770 based GCW Zero open-source
       handheld video game console

   (2) Support for the Ranchu board (used by Android emulator)

   (3) Various cleanups and misc improvements

  More detailed summary:

  Fixes:
   - Fix generic platform's USB_*HCI_BIG_ENDIAN selects (4.9)
   - Fix vmlinuz default build when ZBOOT selected
   - Fix clean up of vmlinuz targets
   - Fix command line duplication (in preparation for Ingenic JZ4770)

  Miscellaneous:
   - Allow Processor ID reads to be to be optimised away by the compiler
     (improves performance when running in guest)
   - Push ARCH_MIGHT_HAVE_PC_SERIO/PARPORT down to platform level to
     disable on generic platform with Ranchu board support
   - Add helpers for assembler macro instructions for older assemblers
   - Use assembler macro instructions to support VZ, XPA & MSA
     operations on older assemblers, removing C wrapper duplication
   - Various improvements to VZ & XPA assembly wrappers
   - Add drivers/platform/mips/ to MIPS MAINTAINERS entry

  Minor cleanups:
   - Misc FPU emulation cleanups (removal of unnecessary include, moving
     macros to common header, checkpatch and sparse fixes)
   - Remove duplicate assignment of core in play_dead()
   - Remove duplication in watchpoint handling
   - Remove mips_dma_mapping_error() stub
   - Use NULL instead of 0 in prepare_ftrace_return()
   - Use proper kernel-doc Return keyword for
     __compute_return_epc_for_insn()
   - Remove duplicate semicolon in csum_fold()

  Platform support:

  Broadcom:
   - Enable ZBOOT on BCM47xx

  Generic platform:
   - Add Ranchu board support, used by Android emulator
   - Fix machine compatible string matching for Ranchu
   - Support GIC in EIC mode

  Ingenic platforms:
   - Add DT, defconfig and other support for JZ4770 SoC and GCW Zero
   - Support dynamnic machine types (i.e. JZ4740 / JZ4770 / JZ4780)
   - Add Ingenic JZ4770 CGU clocks
   - General Ingenic clk changes to prepare for JZ4770 SoC support
   - Use common command line handling code
   - Add DT vendor prefix to GCW (Game Consoles Worldwide)

  Loongson:
   - Add MAINTAINERS entry for Loongson2 and Loongson3 platforms
   - Drop 32-bit support for Loongson 2E/2F devices
   - Fix build failures due to multiple use of 'MEM_RESERVED'"

* tag 'mips_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (53 commits)
  MIPS: Malta: Sanitize mouse and keyboard configuration.
  MIPS: Update defconfigs after previous patch.
  MIPS: Push ARCH_MIGHT_HAVE_PC_SERIO down to platform level
  MIPS: Push ARCH_MIGHT_HAVE_PC_PARPORT down to platform level
  MIPS: SMP-CPS: Remove duplicate assignment of core in play_dead
  MIPS: Generic: Support GIC in EIC mode
  MIPS: generic: Fix Makefile alignment
  MIPS: generic: Fix ranchu_of_match[] termination
  MIPS: generic: Fix machine compatible matching
  MIPS: Loongson fix name confict - MEM_RESERVED
  MIPS: bcm47xx: enable ZBOOT support
  MIPS: Fix trailing semicolon
  MIPS: Watch: Avoid duplication of bits in mips_read_watch_registers
  MIPS: Watch: Avoid duplication of bits in mips_install_watch_registers.
  MIPS: MSA: Update helpers to use new asm macros
  MIPS: XPA: Standardise readx/writex accessors
  MIPS: XPA: Allow use of $0 (zero) to MTHC0
  MIPS: XPA: Use XPA instructions in assembly
  MIPS: VZ: Pass GC0 register names in $n format
  MIPS: VZ: Update helpers to use new asm macros
  ...
2018-02-07 11:22:44 -08:00
Linus Torvalds
e03ab6c4ad A few late-arriving fixes, along with Konstantin's PGP document that had
no reason to wait another cycle.
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Merge tag 'docs-4.16-2' of git://git.lwn.net/linux

Pull more documentation updates from Jonathan Corbet:
 "A few late-arriving fixes, along with Konstantin's PGP document that
  had no reason to wait another cycle"

* tag 'docs-4.16-2' of git://git.lwn.net/linux:
  Documentation/process: tweak pgp maintainer guide
  Documentation/admin-guide: fixes for thunderbolt.rst
  Documentation: mips: Update AU1xxx_IDE Kconfig dependencies
  Fix broken link in Documentation/process/kernel-docs.rst
  Documentation/process: kernel maintainer PGP guide
2018-02-07 09:42:59 -08:00
Prarit Bhargava
0231d00082 ACPI: SPCR: Make SPCR available to x86
SPCR is currently only enabled or ARM64 and x86 can use SPCR to setup
an early console.

General fixes include updating Documentation & Kconfig (for x86),
updating comments, and changing parse_spcr() to acpi_parse_spcr(),
and earlycon_init_is_deferred to earlycon_acpi_spcr_enable to be
more descriptive.

On x86, many systems have a valid SPCR table but the table version is
not 2 so the table version check must be a warning.

On ARM64 when the kernel parameter earlycon is used both the early console
and console are enabled.  On x86, only the earlycon should be enabled by
by default.  Modify acpi_parse_spcr() to allow options for initializing
the early console and console separately.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Mark Salter <msalter@redhat.com>
Tested-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-07 11:39:58 +01:00
Linus Torvalds
a2e5790d84 Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:

 - kasan updates

 - procfs

 - lib/bitmap updates

 - other lib/ updates

 - checkpatch tweaks

 - rapidio

 - ubsan

 - pipe fixes and cleanups

 - lots of other misc bits

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (114 commits)
  Documentation/sysctl/user.txt: fix typo
  MAINTAINERS: update ARM/QUALCOMM SUPPORT patterns
  MAINTAINERS: update various PALM patterns
  MAINTAINERS: update "ARM/OXNAS platform support" patterns
  MAINTAINERS: update Cortina/Gemini patterns
  MAINTAINERS: remove ARM/CLKDEV SUPPORT file pattern
  MAINTAINERS: remove ANDROID ION pattern
  mm: docs: add blank lines to silence sphinx "Unexpected indentation" errors
  mm: docs: fix parameter names mismatch
  mm: docs: fixup punctuation
  pipe: read buffer limits atomically
  pipe: simplify round_pipe_size()
  pipe: reject F_SETPIPE_SZ with size over UINT_MAX
  pipe: fix off-by-one error when checking buffer limits
  pipe: actually allow root to exceed the pipe buffer limits
  pipe, sysctl: remove pipe_proc_fn()
  pipe, sysctl: drop 'min' parameter from pipe-max-size converter
  kasan: rework Kconfig settings
  crash_dump: is_kdump_kernel can be boolean
  kernel/mutex: mutex_is_locked can be boolean
  ...
2018-02-06 22:15:42 -08:00
Linus Torvalds
0dc400f41f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix error path in netdevsim, from Jakub Kicinski.

 2) Default values listed in tcp_wmem and tcp_rmem documentation were
    inaccurate, from Tonghao Zhang.

 3) Fix route leaks in SCTP, both for ipv4 and ipv6. From Alexey Kodanev
    and Tommi Rantala.

 4) Fix "MASK < Y" meant to be "MASK << Y" in xgbe driver, from Wolfram
    Sang.

 5) Use after free in u32_destroy_key(), from Paolo Abeni.

 6) Fix two TX issues in be2net driver, from Suredh Reddy.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (25 commits)
  be2net: Handle transmit completion errors in Lancer
  be2net: Fix HW stall issue in Lancer
  RDS: IB: Fix null pointer issue
  nfp: fix kdoc warnings on nested structures
  sample/bpf: fix erspan metadata
  net: erspan: fix erspan config overwrite
  net: erspan: fix metadata extraction
  cls_u32: fix use after free in u32_destroy_key()
  net: amd-xgbe: fix comparison to bitshift when dealing with a mask
  net: phy: Handle not having GPIO enabled in the kernel
  ibmvnic: fix empty firmware version and errors cleanup
  sctp: fix dst refcnt leak in sctp_v4_get_dst
  sctp: fix dst refcnt leak in sctp_v6_get_dst()
  dwc-xlgmac: remove Jie Deng as co-maintainer
  doc: Change the min default value of tcp_wmem/tcp_rmem.
  samples/bpf: use bpf_set_link_xdp_fd
  libbpf: add missing SPDX-License-Identifier
  libbpf: add error reporting in XDP
  libbpf: add function to setup XDP
  tools: add netlink.h and if_link.h in tools uapi
  ...
2018-02-06 19:00:42 -08:00
Kangmin Park
60c3e026d7 Documentation/sysctl/user.txt: fix typo
Fix 'documetation' to 'documentation'

Link: http://lkml.kernel.org/r/CAKW4uUxRPZz59aWAX8ytaCB5=Qh6d_CvAnO7rYq-6NRAnQJbDA@mail.gmail.com
Signed-off-by: Kangmin Park <l4stpr0gr4m@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Kosina <trivial@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-06 18:32:48 -08:00
Konstantin Ryabitsev
78ed784519 Documentation/process: tweak pgp maintainer guide
Based on the feedback provided:

- Uniformly use lowercase k in "Linux kernel"
- Give a one-sentence explanation of what subkeys are
- Explain what signed commits might be useful for even if upstream
  developers do not use them for much of anything
- Admonish to set up gpg-agent if signed commits are turned on in
  git config
- Fix a typo reported by Luc Van Oostenryck

Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-02-06 16:31:56 -07:00
Linus Torvalds
cbd7b8a76b platform-drivers-x86 for v4.16-1
New model support added for Dell, Ideapad, Acer, Asus, Thinkpad, and GPD
 laptops.  Improvements to the common intel-vbtn driver, including tablet
 mode, rotate, and front button support. Intel CPU support added for
 Cannonlake and platform support for Dollar Cove power button.
 
 Overhaul of the mellanox platform driver, creating a new
 platform/mellanox directory for the newly multi-architecture regmap
 interface.
 
 Significant Intel PMC update with CannonLake support, Coffeelake update,
 CPUID enumeration, module support, new read64 API, refactoring and
 cleanups.
 
 Revert the apple-gmux iGP IO lock, addressing reported issues with
 non-binary drivers, leaving Nvidia binary driver users to comment out
 conflicting code.
 
 Miscellaneous fixes and cleanups.
 
 Previously merged during the 4.15-rc cycle:
 - e20a8e771d platform/x86: dell-laptop: Fix keyboard max lighting for Dell Latitude E6410
 - 9cd5cf3710 platform/x86: asus-wireless: send an EV_SYN/SYN_REPORT between state changes
 - 91c73e8092 platform/x86: dell-wmi: check for kmalloc() errors
 - 9a1a625918 platform/x86: wmi: Call acpi_wmi_init() later
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI / LPIT:
  -  Export lpit_read_residency_count_address()
 
 Input:
  -  add KEY_ROTATE_LOCK_TOGGLE
 
 MAINTAINERS:
  -  Update tree for platform-drivers-x86
 
 x86/cpu:
  -  Add Cannonlake to Intel family
 
 acer-wireless:
  - Add Acer Wireless Radio Control driver
 
 intel_chtdc_ti_pwrbtn:
  - Add support for Dollar Cove TI power button
 
 GPD pocket fan:
  -  Add driver for GPD pocket custom fan controller
  -  Stop work on suspend
  -  Use a min-speed of 2 while charging
  -  Set speed to max on get_temp failure
 
 apple-gmux:
  -  Revert: lock iGP IO to protect from vgaarb changes
 
 alienware-wmi:
  -  lightbar LED support for Dell Inspiron 5675
 
 asus-nb-wmi:
  -  Support ALS on the Zenbook UX430UQ
 
 dell-laptop:
  -  Allocate buffer on heap rather than globally
  -  Add 2-in-1 devices to the DMI whitelist
  -  Filter out spurious keyboard backlight change events
  -  make some local functions static
  -  Use bool in struct quirk_entry for true/false fields
 
 dell-smbios:
  -  Correct notation for filtering
 
 dell-wmi:
  -  Add an event created by Dell Latitude 5495
 
 Kconfig
  - have ACPI_CMPC use depends instead of select for INPUT
 
 ideapad-laptop:
  -  Add Y720-15IKB to no_hw_rfkill
  -  add lenovo RESCUER R720-15IKBN to no_hw_rfkill_list
  -  Use __func__ instead of write_ec_cmd in pr_err
  -  Remove unnecessary else
 
 intel-hid:
  -  add a DMI quirk to support Wacom MobileStudio Pro
 
 intel-vbtn:
  -  Replace License by SDPX identifier
  -  Remove redundant inclusions
  -  Support tablet mode switch
  -  Simplify autorelease logic
  -  support panel front button
  -  support KEY_ROTATE_LOCK_TOGGLE
  -  Support separate press/release events
  -  support SW_TABLET_MODE
 
 intel_int0002_vgpio:
  -  Remove IRQF_NO_THREAD irq flag
 
 intel_pmc_core:
  -  Special case for Coffeelake
  -  Add CannonLake PCH support
  -  Read base address from LPIT
  -  Remove unused header file
  -  Convert to ICPU macro
  -  Substitute PCI with CPUID enumeration
  -  Refactor debugfs entries
  -  Update Kconfig
  -  Fix file permission warnings
  -  Change driver to a module
  -  Fix kernel doc for pmc_dev
  -  Remove unused variable
  -  Remove unused EXPORTED API
 
 intel_pmc_ipc:
  -  Add read64 API
 
 intel_telemetry:
  -  Remove redundancies
  -  Improve S0ix logs
  -  Fix suspend stats
 
 mlx-platform:
  -  Fix an ERR_PTR vs NULL issue
  -  Add hotplug device unregister to error path
  -  fix module aliases
  -  Add IO access verification callbacks
  -  Document pdev_hotplug field
  -  Allow compilation for 32 bit arch
 
 platform/mellanox:
  -  mlxreg-hotplug: Add check for negative adapter number
  -  mlxreg-hotplug: Enable building for ARM
  -  mlxreg-hotplug: Modify to use a regmap interface
  -  Group create/destroy with attribute functions
  -  Rename i2c bus to nr
  -  mlxreg-hotplug: Remove unused wait.h include
  -  Move Mellanox platform hotplug driver to platform/mellanox
 
 pmc_atom:
  -  introduce DEFINE_SHOW_ATTRIBUTE() macro
 
 samsung-laptop:
  -  Grammar s/are can/can/
 
 silead_dmi:
  -  Add Teclast X3 Plus tablet support
  -  Add entry for newer BIOS for Trekstor Surftab 7.0
  -  Add entry for the Teclast X98 Plus II
  -  Add entry for the Trekstor Primebook C13
  -  Add entry for the Chuwi Vi8 tablet
  -  add entry for Chuwi Hi8 tablet
  -  Add support for the Onda oBook 20 Plus tablet
  -  Add touchscreen info for SurfTab twin 10.1
 
 thinkpad_acpi:
  -  suppress warning about palm detection
  -  Accept flat mode for type 4 multi mode status
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Merge tag 'platform-drivers-x86-v4.16-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform-driver updates from Darren Hart:
 "New model support added for Dell, Ideapad, Acer, Asus, Thinkpad, and
  GPD laptops. Improvements to the common intel-vbtn driver, including
  tablet mode, rotate, and front button support. Intel CPU support added
  for Cannonlake and platform support for Dollar Cove power button.

  Overhaul of the mellanox platform driver, creating a new
  platform/mellanox directory for the newly multi-architecture regmap
  interface.

  Significant Intel PMC update with CannonLake support, Coffeelake
  update, CPUID enumeration, module support, new read64 API, refactoring
  and cleanups.

  Revert the apple-gmux iGP IO lock, addressing reported issues with
  non-binary drivers, leaving Nvidia binary driver users to comment out
  conflicting code.

  Miscellaneous fixes and cleanups"

* tag 'platform-drivers-x86-v4.16-1' of git://git.infradead.org/linux-platform-drivers-x86: (81 commits)
  platform/x86: mlx-platform: Fix an ERR_PTR vs NULL issue
  platform/x86: intel_pmc_core: Special case for Coffeelake
  platform/x86: intel_pmc_core: Add CannonLake PCH support
  x86/cpu: Add Cannonlake to Intel family
  platform/x86: intel_pmc_core: Read base address from LPIT
  ACPI / LPIT: Export lpit_read_residency_count_address()
  platform/x86: intel-vbtn: Replace License by SDPX identifier
  platform/x86: intel-vbtn: Remove redundant inclusions
  platform/x86: intel-vbtn: Support tablet mode switch
  platform/x86: dell-laptop: Allocate buffer on heap rather than globally
  platform/x86: intel_pmc_core: Remove unused header file
  platform/x86: mlx-platform: Add hotplug device unregister to error path
  platform/x86: mlx-platform: fix module aliases
  platform/mellanox: mlxreg-hotplug: Add check for negative adapter number
  platform/x86: mlx-platform: Add IO access verification callbacks
  platform/x86: mlx-platform: Document pdev_hotplug field
  platform/x86: mlx-platform: Allow compilation for 32 bit arch
  platform/mellanox: mlxreg-hotplug: Enable building for ARM
  platform/mellanox: mlxreg-hotplug: Modify to use a regmap interface
  platform/mellanox: Group create/destroy with attribute functions
  ...
2018-02-06 15:30:52 -08:00
Linus Torvalds
3f551e3cef Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui:

 - fix a race condition issue in power allocator governor (Yi Zeng).

 - add support for AP806 and CP110 in armada thermal driver, together
   with several improvements (Baruch Siach, Miquel Raynal)

 - add support for r8z7743 in rcar thermal driver (Biju Das)

 - convert thermal core to use new hwmon API to avoid warning (Fabio
   Estevam)

 - small fixes and cleanups in thermal core and x86_pkg_thermal,
   int3400_thermal, hisi_thermal, mtk_thermal and imx_thermal drivers
   (Pravin Shedge, Geert Uytterhoeven, Alexey Khoroshilov, Brian Bian,
   Matthias Brugger, Nicolin Chen, Uwe Kleine-König)

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits)
  thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()
  thermal/x86 pkg temp: Remove debugfs_create_u32() casts
  thermal: int3400_thermal: fix error handling in int3400_thermal_probe()
  thermal/drivers/hisi: Remove bogus const from function return type
  thermal: armada: Give meaningful names to the thermal zones
  thermal: armada: Wait sensors validity before exiting the init callback
  thermal: armada: Change sensors trim default value
  thermal: armada: Update Kconfig and module description
  thermal: armada: Add support for Armada CP110
  thermal: armada: Add support for Armada AP806
  thermal: armada: Use real status register name
  thermal: armada: Clarify control registers accesses
  thermal: armada: Simplify the check of the validity bit
  thermal: armada: Use msleep for long delays
  dt-bindings: thermal: Describe Armada AP806 and CP110
  dt-bindings: thermal: rcar: Add device tree support for r8a7743
  thermal: mtk: Cleanup unused defines
  thermal: imx: update to new formula according to NXP AN5215
  thermal: imx: use consistent style to write temperatures
  thermal: imx: improve comments describing algorithm for temp calculation
  ...
2018-02-06 15:04:58 -08:00
Matthew Wilcox
ac665d9423 idr: Add documentation
Move the idr kernel-doc to its own idr.rst file and add a few
paragraphs about how to use it.  Also add some more kernel-doc.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
2018-02-06 16:41:29 -05:00
Linus Torvalds
68c5735eaa media updates for v4.16-rc1
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Merge tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - videobuf2 was moved to a media/common dir, as it is now used by the
   DVB subsystem too

 - Digital TV core memory mapped support interface

 - new sensor driver: ov7740

 - several improvements at ddbridge driver

 - new V4L2 driver: IPU3 CIO2 CSI-2 receiver unit, found on some Intel
   SoCs

 - new tuner driver: tda18250

 - finally got rid of all LIRC staging drivers

 - as we don't have old lirc drivers anymore, restruct the lirc device
   code

 - add support for UVC metadata

 - add a new staging driver for NVIDIA Tegra Video Decoder Engine

 - DVB kAPI headers moved to include/media

 - synchronize the kAPI and uAPI for the DVB subsystem, removing the gap
   for non-legacy APIs

 - reduce the kAPI gap for V4L2

 - lots of other driver enhancements, cleanups, etc.

* tag 'media/v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (407 commits)
  media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
  media: v4l2-compat-ioctl32.c: refactor compat ioctl32 logic
  media: v4l2-compat-ioctl32.c: don't copy back the result for certain errors
  media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
  media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
  media: v4l2-compat-ioctl32.c: fix ctrl_is_pointer
  media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
  media: v4l2-compat-ioctl32.c: avoid sizeof(type)
  media: v4l2-compat-ioctl32.c: move 'helper' functions to __get/put_v4l2_format32
  media: v4l2-compat-ioctl32.c: fix the indentation
  media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
  media: v4l2-ioctl.c: don't copy back the result for -ENOTTY
  media: v4l2-ioctl.c: use check_fmt for enum/g/s/try_fmt
  media: vivid: fix module load error when enabling fb and no_error_inj=1
  media: dvb_demux: improve debug messages
  media: dvb_demux: Better handle discontinuity errors
  media: cxusb, dib0700: ignore XC2028_I2C_FLUSH
  media: ts2020: avoid integer overflows on 32 bit machines
  media: i2c: ov7740: use gpio/consumer.h instead of gpio.h
  media: entity: Add a nop variant of media_entity_cleanup
  ...
2018-02-06 11:27:48 -08:00
Linus Torvalds
2246edfaf8 Second pull request for 4.16 merge window
- Clean up some function signatures in rxe for clarity
 - Tidy the RDMA netlink header to remove unimplemented constants
 - bnxt_re driver fixes, one is a regression this window.
 - Minor hns driver fixes
 - Various fixes from Dan Carpenter and his tool
 - Fix IRQ cleanup race in HFI1
 - HF1 performance optimizations and a fix to report counters in the right units
 - Fix for an IPoIB startup sequence race with the external manager
 - Oops fix for the new kabi path
 - Endian cleanups for hns
 - Fix for mlx5 related to the new automatic affinity support
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull more rdma updates from Doug Ledford:
 "Items of note:

   - two patches fix a regression in the 4.15 kernel. The 4.14 kernel
     worked fine with NVMe over Fabrics and mlx5 adapters. That broke in
     4.15. The fix is here.

   - one of the patches (the endian notation patch from Lijun) looks
     like a lot of lines of change, but it's mostly mechanical in
     nature. It amounts to the biggest chunk of change in it (it's about
     2/3rds of the overall pull request).

  Summary:

   - Clean up some function signatures in rxe for clarity

   - Tidy the RDMA netlink header to remove unimplemented constants

   - bnxt_re driver fixes, one is a regression this window.

   - Minor hns driver fixes

   - Various fixes from Dan Carpenter and his tool

   - Fix IRQ cleanup race in HFI1

   - HF1 performance optimizations and a fix to report counters in the right units

   - Fix for an IPoIB startup sequence race with the external manager

   - Oops fix for the new kabi path

   - Endian cleanups for hns

   - Fix for mlx5 related to the new automatic affinity support"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (38 commits)
  net/mlx5: increase async EQ to avoid EQ overrun
  mlx5: fix mlx5_get_vector_affinity to start from completion vector 0
  RDMA/hns: Fix the endian problem for hns
  IB/uverbs: Use the standard kConfig format for experimental
  IB: Update references to libibverbs
  IB/hfi1: Add 16B rcvhdr trace support
  IB/hfi1: Convert kzalloc_node and kcalloc to use kcalloc_node
  IB/core: Avoid a potential OOPs for an unused optional parameter
  IB/core: Map iWarp AH type to undefined in rdma_ah_find_type
  IB/ipoib: Fix for potential no-carrier state
  IB/hfi1: Show fault stats in both TX and RX directions
  IB/hfi1: Remove blind constants from 16B update
  IB/hfi1: Convert PortXmitWait/PortVLXmitWait counters to flit times
  IB/hfi1: Do not override given pcie_pset value
  IB/hfi1: Optimize process_receive_ib()
  IB/hfi1: Remove unnecessary fecn and becn fields
  IB/hfi1: Look up ibport using a pointer in receive path
  IB/hfi1: Optimize packet type comparison using 9B and bypass code paths
  IB/hfi1: Compute BTH only for RDMA_WRITE_LAST/SEND_LAST packet
  IB/hfi1: Remove dependence on qp->s_hdrwords
  ...
2018-02-06 11:09:45 -08:00
Linus Torvalds
105cf3c8c6 pci-v4.16-changes
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Merge tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - skip AER driver error recovery callbacks for correctable errors
   reported via ACPI APEI, as we already do for errors reported via the
   native path (Tyler Baicar)

 - fix DPC shared interrupt handling (Alex Williamson)

 - print full DPC interrupt number (Keith Busch)

 - enable DPC only if AER is available (Keith Busch)

 - simplify DPC code (Bjorn Helgaas)

 - calculate ASPM L1 substate parameter instead of hardcoding it (Bjorn
   Helgaas)

 - enable Latency Tolerance Reporting for ASPM L1 substates (Bjorn
   Helgaas)

 - move ASPM internal interfaces out of public header (Bjorn Helgaas)

 - allow hot-removal of VGA devices (Mika Westerberg)

 - speed up unplug and shutdown by assuming Thunderbolt controllers
   don't support Command Completed events (Lukas Wunner)

 - add AtomicOps support for GPU and Infiniband drivers (Felix Kuehling,
   Jay Cornwall)

 - expose "ari_enabled" in sysfs to help NIC naming (Stuart Hayes)

 - clean up PCI DMA interface usage (Christoph Hellwig)

 - remove PCI pool API (replaced with DMA pool) (Romain Perier)

 - deprecate pci_get_bus_and_slot(), which assumed PCI domain 0 (Sinan
   Kaya)

 - move DT PCI code from drivers/of/ to drivers/pci/ (Rob Herring)

 - add PCI-specific wrappers for dev_info(), etc (Frederick Lawler)

 - remove warnings on sysfs mmap failure (Bjorn Helgaas)

 - quiet ROM validation messages (Alex Deucher)

 - remove redundant memory alloc failure messages (Markus Elfring)

 - fill in types for compile-time VGA and other I/O port resources
   (Bjorn Helgaas)

 - make "pci=pcie_scan_all" work for Root Ports as well as Downstream
   Ports to help AmigaOne X1000 (Bjorn Helgaas)

 - add SPDX tags to all PCI files (Bjorn Helgaas)

 - quirk Marvell 9128 DMA aliases (Alex Williamson)

 - quirk broken INTx disable on Ceton InfiniTV4 (Bjorn Helgaas)

 - fix CONFIG_PCI=n build by adding dummy pci_irqd_intx_xlate() (Niklas
   Cassel)

 - use DMA API to get MSI address for DesignWare IP (Niklas Cassel)

 - fix endpoint-mode DMA mask configuration (Kishon Vijay Abraham I)

 - fix ARTPEC-6 incorrect IS_ERR() usage (Wei Yongjun)

 - add support for ARTPEC-7 SoC (Niklas Cassel)

 - add endpoint-mode support for ARTPEC (Niklas Cassel)

 - add Cadence PCIe host and endpoint controller driver (Cyrille
   Pitchen)

 - handle multiple INTx status bits being set in dra7xx (Vignesh R)

 - translate dra7xx hwirq range to fix INTD handling (Vignesh R)

 - remove deprecated Exynos PHY initialization code (Jaehoon Chung)

 - fix MSI erratum workaround for HiSilicon Hip06/Hip07 (Dongdong Liu)

 - fix NULL pointer dereference in iProc BCMA driver (Ray Jui)

 - fix Keystone interrupt-controller-node lookup (Johan Hovold)

 - constify qcom driver structures (Julia Lawall)

 - rework Tegra config space mapping to increase space available for
   endpoints (Vidya Sagar)

 - simplify Tegra driver by using bus->sysdata (Manikanta Maddireddy)

 - remove PCI_REASSIGN_ALL_BUS usage on Tegra (Manikanta Maddireddy)

 - add support for Global Fabric Manager Server (GFMS) event to
   Microsemi Switchtec switch driver (Logan Gunthorpe)

 - add IDs for Switchtec PSX 24xG3 and PSX 48xG3 (Kelvin Cao)

* tag 'pci-v4.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (140 commits)
  PCI: cadence: Add EndPoint Controller driver for Cadence PCIe controller
  dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe endpoint controller
  PCI: endpoint: Fix EPF device name to support multi-function devices
  PCI: endpoint: Add the function number as argument to EPC ops
  PCI: cadence: Add host driver for Cadence PCIe controller
  dt-bindings: PCI: cadence: Add DT bindings for Cadence PCIe host controller
  PCI: Add vendor ID for Cadence
  PCI: Add generic function to probe PCI host controllers
  PCI: generic: fix missing call of pci_free_resource_list()
  PCI: OF: Add generic function to parse and allocate PCI resources
  PCI: Regroup all PCI related entries into drivers/pci/Makefile
  PCI/DPC: Reformat DPC register definitions
  PCI/DPC: Add and use DPC Status register field definitions
  PCI/DPC: Squash dpc_rp_pio_get_info() into dpc_process_rp_pio_error()
  PCI/DPC: Remove unnecessary RP PIO register structs
  PCI/DPC: Push dpc->rp_pio_status assignment into dpc_rp_pio_get_info()
  PCI/DPC: Squash dpc_rp_pio_print_error() into dpc_rp_pio_get_info()
  PCI/DPC: Make RP PIO log size check more generic
  PCI/DPC: Rename local "status" to "dpc_status"
  PCI/DPC: Squash dpc_rp_pio_print_tlp_header() into dpc_rp_pio_print_error()
  ...
2018-02-06 09:59:40 -08:00
David Howells
4d673da145 afs: Support the AFS dynamic root
Support the AFS dynamic root which is a pseudo-volume that doesn't connect
to any server resource, but rather is just a root directory that
dynamically creates mountpoint directories where the name of such a
directory is the name of the cell.

Such a mount can be created thus:

	mount -t afs none /afs -o dyn

Dynamic root superblocks aren't shared except by bind mounts and
propagation.  Cell root volumes can then be mounted by referring to them by
name, e.g.:

	ls /afs/grand.central.org/
	ls /afs/.grand.central.org/

The kernel will upcall to consult the DNS if the address wasn't supplied
directly.

Signed-off-by: David Howells <dhowells@redhat.com>
2018-02-06 14:43:37 +00:00
Linus Torvalds
139351f1f9 Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs updates from Miklos Szeredi:
 "This work from Amir adds NFS export capability to overlayfs. NFS
  exporting an overlay filesystem is a challange because we want to keep
  track of any copy-up of a file or directory between encoding the file
  handle and decoding it.

  This is achieved by indexing copied up objects by lower layer file
  handle. The index is already used for hard links, this patchset
  extends the use to NFS file handle decoding"

* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (51 commits)
  ovl: check ERR_PTR() return value from ovl_encode_fh()
  ovl: fix regression in fsnotify of overlay merge dir
  ovl: wire up NFS export operations
  ovl: lookup indexed ancestor of lower dir
  ovl: lookup connected ancestor of dir in inode cache
  ovl: hash non-indexed dir by upper inode for NFS export
  ovl: decode pure lower dir file handles
  ovl: decode indexed dir file handles
  ovl: decode lower file handles of unlinked but open files
  ovl: decode indexed non-dir file handles
  ovl: decode lower non-dir file handles
  ovl: encode lower file handles
  ovl: copy up before encoding non-connectable dir file handle
  ovl: encode non-indexed upper file handles
  ovl: decode connected upper dir file handles
  ovl: decode pure upper file handles
  ovl: encode pure upper file handles
  ovl: document NFS export
  vfs: factor out helpers d_instantiate_anon() and d_alloc_anon()
  ovl: store 'has_upper' and 'opaque' as bit flags
  ...
2018-02-05 13:05:20 -08:00
Linus Torvalds
20f9aa2213 pwm: Changes for v4.16-rc1
The Meson PWM controller driver gains support for the AXG series and a
 minor bug is fixed for the STMPE driver.
 
 To round things off, the class is now set for PWM channels exported via
 sysfs which allows non-root access, provided that the system has been
 configured accordingly.
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Merge tag 'pwm/for-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "The Meson PWM controller driver gains support for the AXG series and a
  minor bug is fixed for the STMPE driver.

  To round things off, the class is now set for PWM channels exported
  via sysfs which allows non-root access, provided that the system has
  been configured accordingly"

* tag 'pwm/for-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: meson: Add clock source configuration for Meson-AXG
  dt-bindings: pwm: Update bindings for the Meson-AXG
  pwm: stmpe: Fix wrong register offset for hwpwm=2 case
  pwm: Set class for exported channels in sysfs
2018-02-05 09:44:52 -08:00
Tonghao Zhang
a61a86f8db doc: Change the min default value of tcp_wmem/tcp_rmem.
The SK_MEM_QUANTUM was changed from PAGE_SIZE to 4096. And the
tcp_wmem/tcp_rmem min default values are 4096.

Fixes: bd68a2a854 ("net: set SK_MEM_QUANTUM to 4096")
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-05 10:05:49 -05:00
David S. Miller
a6b88814ab Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:

====================
pull-request: bpf 2018-02-02

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) support XDP attach in libbpf, from Eric.

2) minor fixes, from Daniel, Jakub, Yonghong, Alexei.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-04 16:46:58 -05:00
Linus Torvalds
35277995e1 Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull spectre/meltdown updates from Thomas Gleixner:
 "The next round of updates related to melted spectrum:

   - The initial set of spectre V1 mitigations:

       - Array index speculation blocker and its usage for syscall,
         fdtable and the n180211 driver.

       - Speculation barrier and its usage in user access functions

   - Make indirect calls in KVM speculation safe

   - Blacklisting of known to be broken microcodes so IPBP/IBSR are not
     touched.

   - The initial IBPB support and its usage in context switch

   - The exposure of the new speculation MSRs to KVM guests.

   - A fix for a regression in x86/32 related to the cpu entry area

   - Proper whitelisting for known to be safe CPUs from the mitigations.

   - objtool fixes to deal proper with retpolines and alternatives

   - Exclude __init functions from retpolines which speeds up the boot
     process.

   - Removal of the syscall64 fast path and related cleanups and
     simplifications

   - Removal of the unpatched paravirt mode which is yet another source
     of indirect unproteced calls.

   - A new and undisputed version of the module mismatch warning

   - A couple of cleanup and correctness fixes all over the place

  Yet another step towards full mitigation. There are a few things still
  missing like the RBS underflow mitigation for Skylake and other small
  details, but that's being worked on.

  That said, I'm taking a belated christmas vacation for a week and hope
  that everything is magically solved when I'm back on Feb 12th"

* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
  KVM/SVM: Allow direct access to MSR_IA32_SPEC_CTRL
  KVM/VMX: Allow direct access to MSR_IA32_SPEC_CTRL
  KVM/VMX: Emulate MSR_IA32_ARCH_CAPABILITIES
  KVM/x86: Add IBPB support
  KVM/x86: Update the reverse_cpuid list to include CPUID_7_EDX
  x86/speculation: Fix typo IBRS_ATT, which should be IBRS_ALL
  x86/pti: Mark constant arrays as __initconst
  x86/spectre: Simplify spectre_v2 command line parsing
  x86/retpoline: Avoid retpolines for built-in __init functions
  x86/kvm: Update spectre-v1 mitigation
  KVM: VMX: make MSR bitmaps per-VCPU
  x86/paravirt: Remove 'noreplace-paravirt' cmdline option
  x86/speculation: Use Indirect Branch Prediction Barrier in context switch
  x86/cpuid: Fix up "virtual" IBRS/IBPB/STIBP feature bits on Intel
  x86/spectre: Fix spelling mistake: "vunerable"-> "vulnerable"
  x86/spectre: Report get_user mitigation for spectre_v1
  nl80211: Sanitize array index in parse_txq_params
  vfs, fdtable: Prevent bounds-check bypass via speculative execution
  x86/syscall: Sanitize syscall table de-references under speculation
  x86/get_user: Use pointer masking to limit speculation
  ...
2018-02-04 11:45:55 -08:00
Linus Torvalds
8ac4840a3c Misc driver changes only :
- TI-MsgMgr: Fix print format for a printk
 - TI-MSgMgr: SPDX license switch for the driver
 - QCOM-IPC: Convert driver to use regmap
 - QCOM-IPC: Spawn sibling clock device from mailbox driver
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Merge tag 'mailbox-v4.16' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox updates from Jassi Brar:
 "Misc driver changes only:

   - TI-MsgMgr: Fix print format for a printk

   - TI-MSgMgr: SPDX license switch for the driver

   - QCOM-IPC: Convert driver to use regmap

   - QCOM-IPC: Spawn sibling clock device from mailbox driver"

* tag 'mailbox-v4.16' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  dt-bindings: mailbox: qcom: Document the APCS clock binding
  mailbox: qcom: Create APCS child device for clock controller
  mailbox: qcom: Convert APCS IPC driver to use regmap
  mailbox: ti-msgmgr: Use %zu for size_t print format
  mailbox: ti-msgmgr: Switch to SPDX Licensing
2018-02-04 11:11:23 -08:00
Linus Torvalds
4141cf676b Merge branch 'i2c/for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "I2C has the following changes for you:

   - new flag to mark DMA safe buffers in i2c_msg. Also, some
     infrastructure around it. And docs.

   - huge refactoring of the at24 driver led by the new maintainer
     Bartosz

   - update I2C bus recovery to send STOP after recovery

   - conversion from gpio to gpiod for I2C bus recovery

   - adding a fault-injector to the i2c-gpio driver

   - lots of small driver improvements, and bigger ones to
     i2c-sh_mobile"

* 'i2c/for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (99 commits)
  i2c: mv64xxx: Add myself as maintainer for this driver
  i2c: mv64xxx: Fix clock resource by adding an optional bus clock
  i2c: mv64xxx: Remove useless test before clk_disable_unprepare
  i2c: mxs: use true and false for boolean values
  i2c: meson: update doc description to fix build warnings
  i2c: meson: add configurable divider factors
  dt-bindings: i2c: update documentation for the Meson-AXG
  i2c: imx-lpi2c: add runtime pm support
  i2c: rcar: fix some trivial typos in comments
  i2c: davinci: fix the cpufreq transition
  i2c: rk3x: add proper kerneldoc header
  i2c: rk3x: account for const type of of_device_id.data
  i2c: acorn: remove outdated path from file header
  i2c: acorn: add MODULE_LICENSE tag
  i2c: rcar: implement bus recovery
  i2c: send STOP after successful bus recovery
  i2c: ensure SDA is released in recovery if SDA is controllable
  i2c: add 'set_sda' to bus_recovery_info
  i2c: add identifier in declarations for i2c_bus_recovery
  i2c: make kerneldoc about bus recovery more precise
  ...
2018-02-04 10:57:43 -08:00
Linus Torvalds
3462ac5703 Refactor support for encrypted symlinks to move common code to fscrypt.
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Merge tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt

Pull fscrypt updates from Ted Ts'o:
 "Refactor support for encrypted symlinks to move common code to fscrypt"

Ted also points out about the merge:
 "This makes the f2fs symlink code use the fscrypt_encrypt_symlink()
  from the fscrypt tree. This will end up dropping the kzalloc() ->
  f2fs_kzalloc() change, which means the fscrypt-specific allocation
  won't get tested by f2fs's kmalloc error injection system; which is
  fine"

* tag 'fscrypt_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt: (26 commits)
  fscrypt: fix build with pre-4.6 gcc versions
  fscrypt: remove 'ci' parameter from fscrypt_put_encryption_info()
  fscrypt: document symlink length restriction
  fscrypt: fix up fscrypt_fname_encrypted_size() for internal use
  fscrypt: define fscrypt_fname_alloc_buffer() to be for presented names
  fscrypt: calculate NUL-padding length in one place only
  fscrypt: move fscrypt_symlink_data to fscrypt_private.h
  fscrypt: remove fscrypt_fname_usr_to_disk()
  ubifs: switch to fscrypt_get_symlink()
  ubifs: switch to fscrypt ->symlink() helper functions
  ubifs: free the encrypted symlink target
  f2fs: switch to fscrypt_get_symlink()
  f2fs: switch to fscrypt ->symlink() helper functions
  ext4: switch to fscrypt_get_symlink()
  ext4: switch to fscrypt ->symlink() helper functions
  fscrypt: new helper function - fscrypt_get_symlink()
  fscrypt: new helper functions for ->symlink()
  fscrypt: trim down fscrypt.h includes
  fscrypt: move fscrypt_is_dot_dotdot() to fs/crypto/fname.c
  fscrypt: move fscrypt_valid_enc_modes() to fscrypt_private.h
  ...
2018-02-04 10:43:12 -08:00
Jason Gunthorpe
46adb17982 IB: Update references to libibverbs
These days the userspace comes from rdma-core, revise references
in the kernel to point to the current repository.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2018-02-04 11:56:49 -05:00
Georgi Djakov
0ae7d327a6 dt-bindings: mailbox: qcom: Document the APCS clock binding
Update the binding documentation for APCS to mention that the APCS
hardware block also expose a clock controller functionality.

The APCS clock controller is a mux and half-integer divider. It has the
main CPU PLL as an input and provides the clock for the application CPU.

Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
2018-02-04 12:16:34 +05:30
Linus Torvalds
23aedc4b9b Only miscellaneous cleanups and bug fixes for ext4 this cycle.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:
 "Only miscellaneous cleanups and bug fixes for ext4 this cycle"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: create ext4_kset dynamically
  ext4: create ext4_feat kobject dynamically
  ext4: release kobject/kset even when init/register fail
  ext4: fix incorrect indentation of if statement
  ext4: correct documentation for grpid mount option
  ext4: use 'sbi' instead of 'EXT4_SB(sb)'
  ext4: save error to disk in __ext4_grp_locked_error()
  jbd2: fix sphinx kernel-doc build warnings
  ext4: fix a race in the ext4 shutdown path
  mbcache: make sure c_entry_count is not decremented past zero
  ext4: no need flush workqueue before destroying it
  ext4: fixed alignment and minor code cleanup in ext4.h
  ext4: fix ENOSPC handling in DAX page fault handler
  dax: pass detailed error code from dax_iomap_fault()
  mbcache: revert "fs/mbcache.c: make count_objects() more robust"
  mbcache: initialize entry->e_referenced in mb_cache_entry_create()
  ext4: fix up remaining files with SPDX cleanups
2018-02-03 13:49:22 -08:00
Corentin Labbe
592a547adf documentation: watchdog: remove documentation of w83697hf_wdt/w83697ug_wdt
Since w83697hf_wdt/w83697ug_wdt watchdogs drivers were removed
in commit 7285fae934 ("watchdog: Remove drivers for W83697HF and W83697UG")
There are no need to keep their documentation

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2018-02-03 11:09:54 +01:00
Corentin Labbe
7171b137f8 documentation: watchdog: remove documentation for ixp2000
The ixp2000 watchdog driver was removed in commit 065e823830 ("watchdog: remove ixp2000 driver")

No need to keep its documentation, so remove it.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2018-02-03 11:09:53 +01:00
Corentin Labbe
71ea98ffef documentation: watchdog: remove documentation of at32ap700x_wdt
Since at32ap700x_wdt is gone, no need to keep its documentation

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2018-02-03 11:09:53 +01:00
Linus Torvalds
ef991796be This is the bulk of pin control changes for the v4.16 kernel cycle:
Core changes:
 
 - After lengthy discussions and partly due to my ignorance, we have
   merged a patch making pinctrl_force_default() and pinctrl_force_sleep()
   reprogram the states into the hardware of any hogged pins, even
   if they are already in the desired state. This only apply to hogged
   pins since groups of pins owned by drivers need to be managed by
   each driver, lest they could not do things like runtime PM and
   put pins to sleeping state even if the system as a whole is not
   in sleep.
 
 New drivers:
 
 - New driver for the Microsemi Ocelot SoC. This is used in ethernet
   switches.
 
 - The X-Powers AXP209 GPIO driver was extended to also deal with pin
   control and moved over from the GPIO subsystem. This circuit is
   a mixed-mode integrated circuit which is part of AllWinner designs.
 
 - New subdriver for the Qualcomm MSM8998 SoC, core of a high end
   mobile devices (phones) chipset.
 
 - New subdriver for the ST Microelectronics STM32MP157 MPU and
   STM32F769 MCU from the STM32 family.
 
 - New subdriver for the MediaTek MT7622 SoC. This is used for routers,
   repeater, gateways and such network infrastructure.
 
 - New subdriver for the NXP (former Freescale) i.MX 6ULL. This SoC has
   multimedia features and target "smart devices", I guess in-car
   entertainment, in-flight entertainment, industrial control panels etc.
 
 General improvements:
 
 - Incremental improvements on the SH-PFC subdrivers for things like
   the CAN bus.
 
 - Enable the glitch filter on Baytrail GPIOs used for interrupts.
 
 - Proper handling of pins to GPIO ranges on the Semtec SX150X
 
 - An IRQ setup ordering fix on MCP23S08.
 
 - A good set of janitorial coding style fixes.
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Merge tag 'pinctrl-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v4.16 kernel cycle.
  Like with GPIO it is actually a bit calm this time.

  Core changes:

   - After lengthy discussions and partly due to my ignorance, we have
     merged a patch making pinctrl_force_default() and
     pinctrl_force_sleep() reprogram the states into the hardware of any
     hogged pins, even if they are already in the desired state.

     This only apply to hogged pins since groups of pins owned by
     drivers need to be managed by each driver, lest they could not do
     things like runtime PM and put pins to sleeping state even if the
     system as a whole is not in sleep.

  New drivers:

   - New driver for the Microsemi Ocelot SoC. This is used in ethernet
     switches.

   - The X-Powers AXP209 GPIO driver was extended to also deal with pin
     control and moved over from the GPIO subsystem. This circuit is a
     mixed-mode integrated circuit which is part of AllWinner designs.

   - New subdriver for the Qualcomm MSM8998 SoC, core of a high end
     mobile devices (phones) chipset.

   - New subdriver for the ST Microelectronics STM32MP157 MPU and
     STM32F769 MCU from the STM32 family.

   - New subdriver for the MediaTek MT7622 SoC. This is used for
     routers, repeater, gateways and such network infrastructure.

   - New subdriver for the NXP (former Freescale) i.MX 6ULL. This SoC
     has multimedia features and target "smart devices", I guess in-car
     entertainment, in-flight entertainment, industrial control panels
     etc.

  General improvements:

   - Incremental improvements on the SH-PFC subdrivers for things like
     the CAN bus.

   - Enable the glitch filter on Baytrail GPIOs used for interrupts.

   - Proper handling of pins to GPIO ranges on the Semtec SX150X

   - An IRQ setup ordering fix on MCP23S08.

   - A good set of janitorial coding style fixes"

* tag 'pinctrl-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (102 commits)
  pinctrl: mcp23s08: fix irq setup order
  pinctrl: Forward declare struct device
  pinctrl: sunxi: Use of_clk_get_parent_count() instead of open coding
  pinctrl: stm32: add STM32F769 MCU support
  pinctrl: sx150x: Add a static gpio/pinctrl pin range mapping
  pinctrl: sx150x: Register pinctrl before adding the gpiochip
  pinctrl: sx150x: Unregister the pinctrl on release
  pinctrl: ingenic: Remove redundant dev_err call in ingenic_pinctrl_probe()
  pinctrl: sprd: Use seq_putc() in sprd_pinconf_group_dbg_show()
  pinctrl: pinmux: Use seq_putc() in pinmux_pins_show()
  pinctrl: abx500: Use seq_putc() in abx500_gpio_dbg_show()
  pinctrl: mediatek: mt7622: align error handling of mtk_hw_get_value call
  pinctrl: mediatek: mt7622: fix potential uninitialized value being returned
  pinctrl: uniphier: refactor drive strength get/set functions
  pinctrl: imx7ulp: constify struct imx_cfg_params_decode
  pinctrl: imx: constify struct imx_pinctrl_soc_info
  pinctrl: imx7d: simplify imx7d_pinctrl_probe
  pinctrl: imx: use struct imx_pinctrl_soc_info as a const
  pinctrl: sunxi-pinctrl: fix pin funtion can not be match correctly.
  pinctrl: qcom: Add msm8998 pinctrl driver
  ...
2018-02-02 14:22:53 -08:00
Linus Torvalds
bf644990a7 RTC for 4.16
Subsystem:
  - Move ABI documentation to Documentation/ABI
 
 New driver:
  - NXP i.MX53 SRTC
  - Chrome OS EC RTC
 
 Drivers:
  - Remove at32ap700x
  - Many fixes in various error paths
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Merge tag 'rtc-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "Not much this cycle. I've pushed the at32ap700x removal late but it is
  unlikely to cause any issues.

  Summary:

  Subsystem:
   - Move ABI documentation to Documentation/ABI

  New driver:
   - NXP i.MX53 SRTC
   - Chrome OS EC RTC

  Drivers:
   - Remove at32ap700x
   - Many fixes in various error paths"

* tag 'rtc-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: remove rtc-at32ap700x
  Documentation: rtc: move iotcl interface documentation to ABI
  Documentation: rtc: add sysfs file permissions
  Documentation: rtc: move sysfs documentation to ABI
  rtc: mxc_v2: remove __exit annotation
  rtc: mxc_v2: Remove unnecessary platform_get_resource() error check
  rtc: add mxc driver for i.MX53 SRTC
  dt-bindings: rtc: add bindings for i.MX53 SRTC
  rtc: r7301: Fix a possible sleep-in-atomic bug in rtc7301_set_time
  rtc: r7301: Fix a possible sleep-in-atomic bug in rtc7301_read_time
  rtc: omap: fix unbalanced clk_prepare_enable/clk_disable_unprepare
  rtc: ac100: Fix multiple race conditions
  rtc: sun6i: ensure rtc is kfree'd on error
  rtc: cros-ec: add cros-ec-rtc driver.
  mfd: cros_ec: Introduce RTC commands and events definitions.
  rtc: stm32: Fix copyright
  rtc: Remove unused RTC_DEVICE_NAME_SIZE
  rtc: r9701: Remove r9701_remove function
  rtc: brcmstb-waketimer: fix error handling in brcmstb_waketmr_probe()
2018-02-02 14:19:19 -08:00
Linus Torvalds
03f51d4efa powerpc updates for 4.16
Highlights:
 
  - Enable support for memory protection keys aka "pkeys" on Power7/8/9 when
    using the hash table MMU.
 
  - Extend our interrupt soft masking to support masking PMU interrupts as well
    as "normal" interrupts, and then use that to implement local_t for a ~4x
    speedup vs the current atomics-based implementation.
 
  - A new driver "ocxl" for "Open Coherent Accelerator Processor Interface
    (OpenCAPI)" devices.
 
  - Support for new device tree properties on PowerVM to describe hotpluggable
    memory and devices.
 
  - Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 64-bit VDSO.
 
  - Freescale updates from Scott:
      "Contains fixes for CPM GPIO and an FSL PCI erratum workaround, plus a
       minor cleanup patch."
 
 As well as quite a lot of other changes all over the place, and small fixes and
 cleanups as always.
 
 Thanks to:
   Alan Modra, Alastair D'Silva, Alexey Kardashevskiy, Alistair Popple, Andreas
   Schwab, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Anshuman
   Khandual, Anton Blanchard, Arnd Bergmann, Balbir Singh, Benjamin
   Herrenschmidt, Bhaktipriya Shridhar, Bryant G. Ly, Cédric Le Goater,
   Christophe Leroy, Christophe Lombard, Cyril Bur, David Gibson, Desnes A. Nunes
   do Rosario, Dmitry Torokhov, Frederic Barrat, Geert Uytterhoeven, Guilherme G.
   Piccoli, Gustavo A. R. Silva, Gustavo Romero, Ivan Mikhaylov, Joakim
   Tjernlund, Joe Perches, Josh Poimboeuf, Juan J. Alvarez, Julia Cartwright,
   Kamalesh Babulal, Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Malaterre,
   Michael Bringmann, Michael Hanselmann, Michael Neuling, Nathan Fontenot,
   Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Philippe Bergheaud, Ram Pai,
   Russell Currey, Santosh Sivaraj, Scott Wood, Seth Forshee, Simon Guo, Stewart
   Smith, Sukadev Bhattiprolu, Thiago Jung Bauermann, Vaibhav Jain, Vasyl
   Gomonovych.
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Merge tag 'powerpc-4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Highlights:

   - Enable support for memory protection keys aka "pkeys" on Power7/8/9
     when using the hash table MMU.

   - Extend our interrupt soft masking to support masking PMU interrupts
     as well as "normal" interrupts, and then use that to implement
     local_t for a ~4x speedup vs the current atomics-based
     implementation.

   - A new driver "ocxl" for "Open Coherent Accelerator Processor
     Interface (OpenCAPI)" devices.

   - Support for new device tree properties on PowerVM to describe
     hotpluggable memory and devices.

   - Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 64-bit
     VDSO.

   - Freescale updates from Scott: fixes for CPM GPIO and an FSL PCI
     erratum workaround, plus a minor cleanup patch.

  As well as quite a lot of other changes all over the place, and small
  fixes and cleanups as always.

  Thanks to: Alan Modra, Alastair D'Silva, Alexey Kardashevskiy,
  Alistair Popple, Andreas Schwab, Andrew Donnellan, Aneesh Kumar K.V,
  Anju T Sudhakar, Anshuman Khandual, Anton Blanchard, Arnd Bergmann,
  Balbir Singh, Benjamin Herrenschmidt, Bhaktipriya Shridhar, Bryant G.
  Ly, Cédric Le Goater, Christophe Leroy, Christophe Lombard, Cyril Bur,
  David Gibson, Desnes A. Nunes do Rosario, Dmitry Torokhov, Frederic
  Barrat, Geert Uytterhoeven, Guilherme G. Piccoli, Gustavo A. R. Silva,
  Gustavo Romero, Ivan Mikhaylov, Joakim Tjernlund, Joe Perches, Josh
  Poimboeuf, Juan J. Alvarez, Julia Cartwright, Kamalesh Babulal,
  Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Malaterre, Michael
  Bringmann, Michael Hanselmann, Michael Neuling, Nathan Fontenot,
  Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Philippe Bergheaud,
  Ram Pai, Russell Currey, Santosh Sivaraj, Scott Wood, Seth Forshee,
  Simon Guo, Stewart Smith, Sukadev Bhattiprolu, Thiago Jung Bauermann,
  Vaibhav Jain, Vasyl Gomonovych"

* tag 'powerpc-4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (199 commits)
  powerpc/mm/radix: Fix build error when RADIX_MMU=n
  macintosh/ams-input: Use true and false for boolean values
  macintosh: change some data types from int to bool
  powerpc/watchdog: Print the NIP in soft_nmi_interrupt()
  powerpc/watchdog: regs can't be null in soft_nmi_interrupt()
  powerpc/watchdog: Tweak watchdog printks
  powerpc/cell: Remove axonram driver
  rtc-opal: Fix handling of firmware error codes, prevent busy loops
  powerpc/mpc52xx_gpt: make use of raw_spinlock variants
  macintosh/adb: Properly mark continued kernel messages
  powerpc/pseries: Fix cpu hotplug crash with memoryless nodes
  powerpc/numa: Ensure nodes initialized for hotplug
  powerpc/numa: Use ibm,max-associativity-domains to discover possible nodes
  powerpc/kernel: Block interrupts when updating TIDR
  powerpc/powernv/idoa: Remove unnecessary pcidev from pci_dn
  powerpc/mm/nohash: do not flush the entire mm when range is a single page
  powerpc/pseries: Add Initialization of VF Bars
  powerpc/pseries/pci: Associate PEs to VFs in configure SR-IOV
  powerpc/eeh: Add EEH notify resume sysfs
  powerpc/eeh: Add EEH operations to notify resume
  ...
2018-02-02 10:01:04 -08:00
Yonghong Song
6215ea6b7e bpf: add documentation to compare clang "-target bpf" and default target
The added documentation explains how generated codes may differ
between clang bpf target and default target, and when to use
each target.

Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-02-02 11:14:19 +01:00
Cornelia Huck
0f0929bc5c s390/docs: reword airq section
Also mention the iv helpers as well.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-02-02 10:47:15 +01:00
Cornelia Huck
7ddd091341 s390/docs: mention subchannel types
Since the original inception of the s390-drivers document, the
common I/O layer has grown support for more types of subchannels.
Give at least a pointer for the various types.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-02-02 10:47:14 +01:00
Linus Torvalds
4bf772b146 drm/graphics pull request for v4.16-rc1
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Merge tag 'drm-for-v4.16' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "This seems to have been a comparatively quieter merge window, I assume
  due to holidays etc. The "biggest" change is AMD header cleanups, which
  merge/remove a bunch of them. The AMD gpu scheduler is now being made generic
  with the etnaviv driver wanting to reuse the code, hopefully other drivers
  can go in the same direction.

  Otherwise it's the usual lots of stuff in i915/amdgpu, not so much stuff
  elsewhere.

  Core:
   - Add .last_close and .output_poll_changed helpers to reduce driver footprints
   - Fix plane clipping
   - Improved debug printing support
   - Add panel orientation property
   - Update edid derived properties at edid setting
   - Reduction in fbdev driver footprint
   - Move amdgpu scheduler into core for other drivers to use.

  i915:
   - Selftest and IGT improvements
   - Fast boot prep work on IPS, pipe config
   - HW workarounds for Cannonlake, Geminilake
   - Cannonlake clock and HDMI2.0 fixes
   - GPU cache invalidation and context switch improvements
   - Display planes cleanup
   - New PMU interface for perf queries
   - New firmware support for KBL/SKL
   - Geminilake HW workaround for perforamce
   - Coffeelake stolen memory improvements
   - GPU reset robustness work
   - Cannonlake horizontal plane flipping
   - GVT work

  amdgpu/radeon:
   - RV and Vega header file cleanups (lots of lines gone!)
   - TTM operation context support
   - 48-bit GPUVM support for Vega/RV
   - ECC support for Vega
   - Resizeable BAR support
   - Multi-display sync support
   - Enable swapout for reserved BOs during allocation
   - S3 fixes on Raven
   - GPU reset cleanup and fixes
   - 2+1 level GPU page table

  amdkfd:
   - GFX7/8 SDMA user queues support
   - Hardware scheduling for multiple processes
   - dGPU prep work

  rcar:
   - Added R8A7743/5 support
   - System suspend/resume support

  sun4i:
   - Multi-plane support for YUV formats
   - A83T and LVDS support

  msm:
   - Devfreq support for GPU

  tegra:
   - Prep work for adding Tegra186 support
   - Tegra186 HDMI support
   - HDMI2.0 and zpos support by using generic helpers

  tilcdc:
   - Misc fixes

  omapdrm:
   - Support memory bandwidth limits
   - DSI command mode panel cleanups
   - DMM error handling

  exynos:
   - drop the old IPP subdriver.

  etnaviv:
   - Occlusion query fixes
   - Job handling fixes
   - Prep work for hooking in gpu scheduler

  armada:
   - Move closer to atomic modesetting
   - Allow disabling primary plane if overlay is full screen

  imx:
   - Format modifier support
   - Add tile prefetch to PRE
   - Runtime PM support for PRG

  ast:
   - fix LUT loading"

* tag 'drm-for-v4.16' of git://people.freedesktop.org/~airlied/linux: (1471 commits)
  drm/ast: Load lut in crtc_commit
  drm: Check for lessee in DROP_MASTER ioctl
  drm: fix gpu scheduler link order
  drm/amd/display: Demote error print to debug print when ATOM impl missing
  dma-buf: fix reservation_object_wait_timeout_rcu once more v2
  drm/amdgpu: Avoid leaking PM domain on driver unbind (v2)
  drm/amd/amdgpu: Add Polaris version check
  drm/amdgpu: Reenable manual GPU reset from sysfs
  drm/amdgpu: disable MMHUB power gating on raven
  drm/ttm: Don't unreserve swapped BOs that were previously reserved
  drm/ttm: Don't add swapped BOs to swap-LRU list
  drm/amdgpu: only check for ECC on Vega10
  drm/amd/powerplay: Fix smu_table_entry.handle type
  drm/ttm: add VADDR_FLAG_UPDATED_COUNT to correctly update dma_page global count
  drm: Fix PANEL_ORIENTATION_QUIRKS breaking the Kconfig DRM menuconfig
  drm/radeon: fill in rb backend map on evergreen/ni.
  drm/amdgpu/gfx9: fix ngg enablement to clear gds reserved memory (v2)
  drm/ttm: only free pages rather than update global memory count together
  drm/amdgpu: fix CPU based VM updates
  drm/amdgpu: fix typo in amdgpu_vce_validate_bo
  ...
2018-02-01 17:48:47 -08:00
Linus Torvalds
3879ae653a The core framework has a handful of patches this time around, mostly due
to the clk rate protection support added by Jerome Brunet. This feature
 will allow consumers to lock in a certain rate on the output of a clk so
 that things like audio playback don't hear pops when the clk frequency
 changes due to shared parent clks changing rates. Currently the clk
 API doesn't guarantee the rate of a clk stays at the rate you request
 after clk_set_rate() is called, so this new API will allow drivers
 to express that requirement. Beyond this, the core got some debugfs
 pretty printing patches and a couple minor non-critical fixes.
 
 Looking outside of the core framework diff we have some new driver
 additions and the removal of a legacy TI clk driver. Both of these hit
 high in the dirstat. Also, the removal of the asm-generic/clkdev.h file
 causes small one-liners in all the architecture Kbuild files. Overall, the
 driver diff seems to be the normal stuff that comes all the time to
 fix little problems here and there and to support new hardware.
 
 Core:
  - Clk rate protection
  - Symbolic clk flags in debugfs output
  - Clk registration enabled clks while doing bookkeeping updates
 
 New Drivers:
  - Spreadtrum SC9860
  - HiSilicon hi3660 stub
  - Qualcomm A53 PLL, SPMI clkdiv, and MSM8916 APCS
  - Amlogic Meson-AXG
  - ASPEED BMC
 
 Removed Drivers:
  - TI OMAP 3xxx legacy clk (non-DT) support
  - asm*/clkdev.h got removed (not really a driver)
 
 Updates:
  - Renesas FDP1-0 module clock on R-Car M3-W
  - Renesas LVDS module clock on R-Car V3M
  - Misc fixes to pr_err() prints
  - Qualcomm MSM8916 audio fixes
  - Qualcomm IPQ8074 rounded out support for more peripherals
  - Qualcomm Alpha PLL variants
  - Divider code was using container_of() on bad pointers
  - Allwinner DE2 clks on H3
  - Amlogic minor data fixes and dropping of CLK_IGNORE_UNUSED
  - Mediatek clk driver compile test support
  - AT91 PMC clk suspend/resume restoration support
  - PLL issues fixed on si5351
  - Broadcom IProc PLL calculation updates
  - DVFS support for Armada mvebu CPU clks
  - Allwinner fixed post-divider support
  - TI clkctrl fixes and support for newer SoCs
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The core framework has a handful of patches this time around, mostly
  due to the clk rate protection support added by Jerome Brunet.

  This feature will allow consumers to lock in a certain rate on the
  output of a clk so that things like audio playback don't hear pops
  when the clk frequency changes due to shared parent clks changing
  rates. Currently the clk API doesn't guarantee the rate of a clk stays
  at the rate you request after clk_set_rate() is called, so this new
  API will allow drivers to express that requirement.

  Beyond this, the core got some debugfs pretty printing patches and a
  couple minor non-critical fixes.

  Looking outside of the core framework diff we have some new driver
  additions and the removal of a legacy TI clk driver. Both of these hit
  high in the dirstat. Also, the removal of the asm-generic/clkdev.h
  file causes small one-liners in all the architecture Kbuild files.

  Overall, the driver diff seems to be the normal stuff that comes all
  the time to fix little problems here and there and to support new
  hardware.

  Summary:

  Core:
   - Clk rate protection
   - Symbolic clk flags in debugfs output
   - Clk registration enabled clks while doing bookkeeping updates

  New Drivers:
   - Spreadtrum SC9860
   - HiSilicon hi3660 stub
   - Qualcomm A53 PLL, SPMI clkdiv, and MSM8916 APCS
   - Amlogic Meson-AXG
   - ASPEED BMC

  Removed Drivers:
   - TI OMAP 3xxx legacy clk (non-DT) support
   - asm*/clkdev.h got removed (not really a driver)

  Updates:
   - Renesas FDP1-0 module clock on R-Car M3-W
   - Renesas LVDS module clock on R-Car V3M
   - Misc fixes to pr_err() prints
   - Qualcomm MSM8916 audio fixes
   - Qualcomm IPQ8074 rounded out support for more peripherals
   - Qualcomm Alpha PLL variants
   - Divider code was using container_of() on bad pointers
   - Allwinner DE2 clks on H3
   - Amlogic minor data fixes and dropping of CLK_IGNORE_UNUSED
   - Mediatek clk driver compile test support
   - AT91 PMC clk suspend/resume restoration support
   - PLL issues fixed on si5351
   - Broadcom IProc PLL calculation updates
   - DVFS support for Armada mvebu CPU clks
   - Allwinner fixed post-divider support
   - TI clkctrl fixes and support for newer SoCs"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (125 commits)
  clk: aspeed: Handle inverse polarity of USB port 1 clock gate
  clk: aspeed: Fix return value check in aspeed_cc_init()
  clk: aspeed: Add reset controller
  clk: aspeed: Register gated clocks
  clk: aspeed: Add platform driver and register PLLs
  clk: aspeed: Register core clocks
  clk: Add clock driver for ASPEED BMC SoCs
  clk: mediatek: adjust dependency of reset.c to avoid unexpectedly being built
  clk: fix reentrancy of clk_enable() on UP systems
  clk: meson-axg: fix potential NULL dereference in axg_clkc_probe()
  clk: Simplify debugfs registration
  clk: Fix debugfs_create_*() usage
  clk: Show symbolic clock flags in debugfs
  clk: renesas: r8a7796: Add FDP clock
  clk: Move __clk_{get,put}() into private clk.h API
  clk: sunxi: Use CLK_IS_CRITICAL flag for critical clks
  clk: Improve flags doc for of_clk_detect_critical()
  arch: Remove clkdev.h asm-generic from Kbuild
  clk: sunxi-ng: a83t: Add M divider to TCON1 clock
  clk: Prepare to remove asm-generic/clkdev.h
  ...
2018-02-01 16:56:07 -08:00
Linus Torvalds
fe53d1443a ARM: SoC driver updates for 4.16
A number of new drivers get added this time, along with many low-priority
 bugfixes. The most interesting changes by subsystem are:
 
 bus drivers:
   - Updates to the Broadcom bus interface driver to support newer SoC types
   - The TI OMAP sysc driver now supports updated DT bindings
 
 memory controllers:
   - A new driver for Tegra186 gets added
   - A new driver for the ti-emif sram, to allow relocating
     suspend/resume handlers there
 
 SoC specific:
   - A new driver for Qualcomm QMI, the interface to the modem on MSM SoCs
   - A new driver for power domains on the actions S700 SoC
   - A driver for the Xilinx Zynq VCU logicoreIP
 
 reset controllers:
   - A new driver for Amlogic Meson-AGX
   - various bug fixes
 
 tee subsystem:
   - A new user interface got added to enable asynchronous communication
     with the TEE supplicant.
   - A new method of using user space memory for communication with
     the TEE is added
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "A number of new drivers get added this time, along with many
  low-priority bugfixes. The most interesting changes by subsystem are:

  bus drivers:
   - Updates to the Broadcom bus interface driver to support newer SoC
     types
   - The TI OMAP sysc driver now supports updated DT bindings

  memory controllers:
   - A new driver for Tegra186 gets added
   - A new driver for the ti-emif sram, to allow relocating
     suspend/resume handlers there

  SoC specific:
   - A new driver for Qualcomm QMI, the interface to the modem on MSM
     SoCs
   - A new driver for power domains on the actions S700 SoC
   - A driver for the Xilinx Zynq VCU logicoreIP

  reset controllers:
   - A new driver for Amlogic Meson-AGX
   - various bug fixes

  tee subsystem:
   - A new user interface got added to enable asynchronous communication
     with the TEE supplicant.
   - A new method of using user space memory for communication with the
     TEE is added"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (84 commits)
  of: platform: fix OF node refcount leak
  soc: fsl: guts: Add a NULL check for devm_kasprintf()
  bus: ti-sysc: Fix smartreflex sysc mask
  psci: add CPU_IDLE dependency
  soc: xilinx: Fix Kconfig alignment
  soc: xilinx: xlnx_vcu: Use bitwise & rather than logical && on clkoutdiv
  soc: xilinx: xlnx_vcu: Depends on HAS_IOMEM for xlnx_vcu
  soc: bcm: brcmstb: Be multi-platform compatible
  soc: brcmstb: biuctrl: exit without warning on non brcmstb platforms
  Revert "soc: brcmstb: Only register SoC device on STB platforms"
  bus: omap: add MODULE_LICENSE tags
  soc: brcmstb: Only register SoC device on STB platforms
  tee: shm: Potential NULL dereference calling tee_shm_register()
  soc: xilinx: xlnx_vcu: Add Xilinx ZYNQMP VCU logicoreIP init driver
  dt-bindings: soc: xilinx: Add DT bindings to xlnx_vcu driver
  soc: xilinx: Create folder structure for soc specific drivers
  of: platform: populate /firmware/ node from of_platform_default_populate_init()
  soc: samsung: Add SPDX license identifiers
  soc: qcom: smp2p: Use common error handling code in qcom_smp2p_probe()
  tee: shm: don't put_page on null shm->pages
  ...
2018-02-01 16:35:31 -08:00
Linus Torvalds
537433b624 ARM: SoC device tree updates for 4.16
We get a moderate number of new machines this time, and only one
 new SoC variant (Actions S700):
 
 Actions:
   S700 Soc and CubieBoard7 development board
   Allo.com Sparky Single-board-computer
 
 Allwinner:
   Orange Pi R1 development board
   Libre Computer Board ALL-H3-CC H3 single-board computer
 
 ASpeed ast2x00:
    Witherspoon: OpenPower Power9 server manufactured by IBM that uses the ASPEED ast2500
    Zaius: OpenPower Power9 server manufactured by Invatech that uses the ASPEED ast2500
    Q71L: Intel Xeon server manufactured by Qanta that uses the ASPEED ast2400
 
 AT91:
   Axentia Nattis/Natte digital signage
   sama5d2 PTC-ek Evaluation board
 
 Freescale/NXP i.MX:
    SolidRun Humminboard2 development board
    Variscite DART-MX6 SoM and Carrier-board
    Technologic TS-4600 and TS-7970 development board
    Toradex Colibri iMX7D SoM board
    v1.5 variant of Solidrun Cubox-i and Hummingboard
 
 Freescale/NXP Layerscape:
    Moxa UC-8410A Series industrial computer
 
 Gemini:
   D-Link DNS-313 NAS enclosure
 
 OMAP:
   LogicPD OMAP35xx SOM-LV devkit
   LogicPD OMAP35xx Torpedo devkit
 
 Renesas:
   r8a77970 (V3M) Starter Kit board
   r8a7795 (M3-W) Salvator-XS board
 
 We finally managed to get the dtc warnings under control, with no more
 build-time warnings for bad device tree files. This includes fixes for
 the majority of platforms, including nomadik, samsung, lpc32xx, STi,
 spear, mediatek, freescale, qcom, realview, keystone, omap, kirkwood,
 renesas, hisilicon, and broadcom.
 
 Files get rearranged on a few platforms, in particular the Marvell
 Armada 7K/8K device tree files are changed in preparation for future
 SoC support, based on more than two of the same chips in one package,
 and some boards get renamed for oxnas for consistency.
 
 Finally, many existing SoCs gain descriptions for additional on-chip
 devices that we can now support with kernel drivers:
 
   Allwinner A83t (drm, ethernet, i2c, ...), H3/H5 (USB-OTG)
   Amlogic AXG family (clk, pinctrl, pwm, ...), and others (vpu, hdmi)
   Aspeed clk controller support
   Freescale LS1088A, LS1021A device support
   Gemini Ethernet, PCI, TVE, panel
   Keystone gpio, qspi, more uarts
   Mediatek cpufreq, regulator, clock, reset
   Marvell thermal, cpufreq, nand
   Renesas SMP, thermal, timer, PWM, sound, phy, ipmmu
   Rockchip Mipi, GPU, display
   Samsung Exynos5433 PMU, power domain, nfc
   Spreadtrum: sc9860 clocks
   Tegra TX2 PSDI, HDMI, I2C,SMMU, display, fuse, ...
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC device tree updates from Arnd Bergmann:
 "We get a moderate number of new machines this time, and only one new
  SoC variant (Actions S700):

  Actions:
   - S700 Soc and CubieBoard7 development board
   - Allo.com Sparky Single-board-computer

  Allwinner:
   - Orange Pi R1 development board
   - Libre Computer Board ALL-H3-CC H3 single-board computer

  ASpeed ast2x00:
   - Witherspoon: OpenPower Power9 server manufactured by IBM that uses the ASPEED ast2500
   - Zaius: OpenPower Power9 server manufactured by Invatech that uses the ASPEED ast2500
   - Q71L: Intel Xeon server manufactured by Qanta that uses the ASPEED ast2400

  AT91:
   - Axentia Nattis/Natte digital signage
   - sama5d2 PTC-ek Evaluation board

  Freescale/NXP i.MX:
   - SolidRun Humminboard2 development board
   - Variscite DART-MX6 SoM and Carrier-board
   - Technologic TS-4600 and TS-7970 development board
   - Toradex Colibri iMX7D SoM board
   - v1.5 variant of Solidrun Cubox-i and Hummingboard

  Freescale/NXP Layerscape:
   - Moxa UC-8410A Series industrial computer

  Gemini:
   - D-Link DNS-313 NAS enclosure

  OMAP:
   - LogicPD OMAP35xx SOM-LV devkit
   - LogicPD OMAP35xx Torpedo devkit

  Renesas:
   - r8a77970 (V3M) Starter Kit board
   - r8a7795 (M3-W) Salvator-XS board

  We finally managed to get the dtc warnings under control, with no more
  build-time warnings for bad device tree files. This includes fixes for
  the majority of platforms, including nomadik, samsung, lpc32xx, STi,
  spear, mediatek, freescale, qcom, realview, keystone, omap, kirkwood,
  renesas, hisilicon, and broadcom.

  Files get rearranged on a few platforms, in particular the Marvell
  Armada 7K/8K device tree files are changed in preparation for future
  SoC support, based on more than two of the same chips in one package,
  and some boards get renamed for oxnas for consistency.

  Finally, many existing SoCs gain descriptions for additional on-chip
  devices that we can now support with kernel drivers:

   - Allwinner A83t (drm, ethernet, i2c, ...), H3/H5 (USB-OTG)
   - Amlogic AXG family (clk, pinctrl, pwm, ...), and others (vpu, hdmi)
   - Aspeed clk controller support
   - Freescale LS1088A, LS1021A device support
   - Gemini Ethernet, PCI, TVE, panel
   - Keystone gpio, qspi, more uarts
   - Mediatek cpufreq, regulator, clock, reset
   - Marvell thermal, cpufreq, nand
   - Renesas SMP, thermal, timer, PWM, sound, phy, ipmmu
   - Rockchip Mipi, GPU, display
   - Samsung Exynos5433 PMU, power domain, nfc
   - Spreadtrum: sc9860 clocks
   - Tegra TX2 PSDI, HDMI, I2C,SMMU, display, fuse, ..."

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (690 commits)
  arm64: dts: stratix10: fix SPI settings
  ARM: dts: socfpga: add i2c reset signals
  arm64: dts: stratix10: add USB ECC reset bit
  arm64: dts: stratix10: enable USB on the devkit
  ARM: dts: socfpga: disable over-current for Arria10 USB devkit
  ARM: dts: Nokia N9: add support for up/down keys in the dts
  ARM: dts: nomadik: add interrupt-parent for clcd
  ARM: dts: Add ethernet to a bunch of platforms
  ARM: dts: Add ethernet to the Gemini SoC
  ARM: dts: rename oxnas dts files
  ARM: dts: s5pv210: add interrupt-parent for ohci
  ARM: lpc3250: fix uda1380 gpio numbers
  ARM: dts: STi: Add gpio polarity for "hdmi,hpd-gpio" property
  ARM: dts: dra7: Reduce shut down temperature of non-cpu thermal zones
  ARM: dts: n900: Add aliases for lcd and tvout displays
  ARM: dts: Update ti-sysc data for existing users
  ARM: dts: Fix smartreflex compatible for omap3 shared mpu-iva instance
  arm64: dts: marvell: armada-80x0: Fix pinctrl compatible string
  arm: spear13xx: Fix spics gpio controller's warning
  arm: spear13xx: Fix dmas cells
  ...
2018-02-01 16:07:54 -08:00
Linus Torvalds
ab486bc9a5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:

 - Add a console_msg_format command line option:

     The value "default" keeps the old "[time stamp] text\n" format. The
     value "syslog" allows to see the syslog-like "<log
     level>[timestamp] text" format.

     This feature was requested by people doing regression tests, for
     example, 0day robot. They want to have both filtered and full logs
     at hands.

 - Reduce the risk of softlockup:

     Pass the console owner in a busy loop.

     This is a new approach to the old problem. It was first proposed by
     Steven Rostedt on Kernel Summit 2017. It marks a context in which
     the console_lock owner calls console drivers and could not sleep.
     On the other side, printk() callers could detect this state and use
     a busy wait instead of a simple console_trylock(). Finally, the
     console_lock owner checks if there is a busy waiter at the end of
     the special context and eventually passes the console_lock to the
     waiter.

     The hand-off works surprisingly well and helps in many situations.
     Well, there is still a possibility of the softlockup, for example,
     when the flood of messages stops and the last owner still has too
     much to flush.

     There is increasing number of people having problems with
     printk-related softlockups. We might eventually need to get better
     solution. Anyway, this looks like a good start and promising
     direction.

 - Do not allow to schedule in console_unlock() called from printk():

     This reverts an older controversial commit. The reschedule helped
     to avoid softlockups. But it also slowed down the console output.
     This patch is obsoleted by the new console waiter logic described
     above. In fact, the reschedule made the hand-off less effective.

 - Deprecate "%pf" and "%pF" format specifier:

     It was needed on ia64, ppc64 and parisc64 to dereference function
     descriptors and show the real function address. It is done
     transparently by "%ps" and "pS" format specifier now.

     Sergey Senozhatsky found that all the function descriptors were in
     a special elf section and could be easily detected.

 - Remove printk_symbol() API:

     It has been obsoleted by "%pS" format specifier, and this change
     helped to remove few continuous lines and a less intuitive old API.

 - Remove redundant memsets:

     Sergey removed unnecessary memset when processing printk.devkmsg
     command line option.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: (27 commits)
  printk: drop redundant devkmsg_log_str memsets
  printk: Never set console_may_schedule in console_trylock()
  printk: Hide console waiter logic into helpers
  printk: Add console owner and waiter logic to load balance console writes
  kallsyms: remove print_symbol() function
  checkpatch: add pF/pf deprecation warning
  symbol lookup: introduce dereference_symbol_descriptor()
  parisc64: Add .opd based function descriptor dereference
  powerpc64: Add .opd based function descriptor dereference
  ia64: Add .opd based function descriptor dereference
  sections: split dereference_function_descriptor()
  openrisc: Fix conflicting types for _exext and _stext
  lib: do not use print_symbol()
  irq debug: do not use print_symbol()
  sysfs: do not use print_symbol()
  drivers: do not use print_symbol()
  x86: do not use print_symbol()
  unicore32: do not use print_symbol()
  sh: do not use print_symbol()
  mn10300: do not use print_symbol()
  ...
2018-02-01 13:36:15 -08:00
Randy Dunlap
54e36a2dc5 Documentation/admin-guide: fixes for thunderbolt.rst
Edits for grammar, punctuation, and a doubled-up word.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andreas Noever <andreas.noever@gmail.com>
Cc: Michael Jamet <michael.jamet@intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Yehezkel Bernat <yehezkel.bernat@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-02-01 12:50:01 -07:00