Commit Graph

635682 Commits

Author SHA1 Message Date
Rafael J. Wysocki
bbc17bb8a8 Merge branch 'pm-devfreq'
* pm-devfreq:
  devfreq: rk3399_dmc: Don't use OPP structures outside of RCU locks
  devfreq: rk3399_dmc: Remove dangling rcu_read_unlock()
  devfreq: exynos: Don't use OPP structures outside of RCU locks
  PM / devfreq: rk3399_dmc: Use the resource-managed function to add devfreq dev
  PM / devfreq: correct comment typo.
  PM / devfreq: exynos-ppmu: Remove unused mutex from struct exynos_ppmu
  PM / devfreq: exynos-ppmu: ppmu_events array should not be NULL terminated
  PM / devfreq: exynos-ppmu: Fix module autoload
  PM / devfreq: rockchip-dfi: Fix module autoload
  PM / devfreq: exynos-nocp: Fix module autoload
  PM / devfreq: rk3399_dmc: Fix module autoload
2016-12-12 20:46:48 +01:00
Rafael J. Wysocki
631ddaba59 Merge branches 'pm-sleep' and 'powercap'
* pm-sleep:
  PM / sleep: Print active wakeup sources when blocking on wakeup_count reads
  x86/suspend: fix false positive KASAN warning on suspend/resume
  PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag
  PM / sleep: System sleep state selection interface rework
  PM / hibernate: Verify the consistent of e820 memory map by md5 digest

* powercap:
  powercap / RAPL: Add Knights Mill CPUID
  powercap/intel_rapl: fix and tidy up error handling
  powercap/intel_rapl: Track active CPUs internally
  powercap/intel_rapl: Cleanup duplicated init code
  powercap/intel rapl: Convert to hotplug state machine
  powercap/intel_rapl: Propagate error code when registration fails
  powercap/intel_rapl: Add missing domain data update on hotplug
2016-12-12 20:46:35 +01:00
Rafael J. Wysocki
b19ad3b9f1 Merge branch 'pm-cpuidle'
* pm-cpuidle:
  cpuidle: Add a kerneldoc comment to cpuidle_use_deepest_state()
  cpuidle: fix improper return value on error
  intel_idle: Convert to hotplug state machine
  intel_idle: Remove superfluous SMP fuction call
  MAINTAINERS: Add Jacob Pan as a new intel_idle maintainer
  MAINTAINERS: Add bug tracking system location entries for cpuidle
  x86/intel_idle: Add Knights Mill CPUID
  x86/intel_idle: Add CPU model 0x4a (Atom Z34xx series)
  thermal/intel_powerclamp: stop sched tick in forced idle
  thermal/intel_powerclamp: Convert to CPU hotplug state
  thermal/intel_powerclamp: Convert the kthread to kthread worker API
  thermal/intel_powerclamp: Remove duplicated code that starts the kthread
  sched/idle: Add support for tasks that inject idle
  cpuidle: Allow enforcing deepest idle state selection
  cpuidle/powernv: staticise powernv_idle_driver
  cpuidle: dt: assign ->enter_freeze to same as ->enter callback function
  cpuidle: governors: Remove remaining old module code
2016-12-12 20:46:15 +01:00
Rafael J. Wysocki
404ea9f1a7 Merge powerclamp driver updates (that depend on cpuidle material) for v4.10. 2016-12-12 20:45:22 +01:00
Rafael J. Wysocki
fecc8c0ebd Merge branch 'pm-cpufreq'
* pm-cpufreq: (51 commits)
  Documentation: intel_pstate: Document HWP energy/performance hints
  cpufreq: intel_pstate: Support for energy performance hints with HWP
  cpufreq: intel_pstate: Add locking around HWP requests
  cpufreq: ondemand: Set MIN_FREQUENCY_UP_THRESHOLD to 1
  cpufreq: intel_pstate: Add Knights Mill CPUID
  MAINTAINERS: Add bug tracking system location entry for cpufreq
  cpufreq: dt: Add support for zx296718
  cpufreq: acpi-cpufreq: drop rdmsr_on_cpus() usage
  cpufreq: acpi-cpufreq: Convert to hotplug state machine
  cpufreq: intel_pstate: fix intel_pstate_exit_perf_limits() prototype
  cpufreq: intel_pstate: Set EPP/EPB to 0 in performance mode
  cpufreq: schedutil: Rectify comment in sugov_irq_work() function
  cpufreq: intel_pstate: increase precision of performance limits
  cpufreq: intel_pstate: round up min_perf limits
  cpufreq: Make cpufreq_update_policy() void
  ACPI / processor: Make acpi_processor_ppc_has_changed() void
  cpufreq: Avoid using inactive policies
  cpufreq: intel_pstate: Generic governors support
  cpufreq: intel_pstate: Request P-states control from SMM if needed
  cpufreq: dt: Add support for r8a7743 and r8a7745
  ...
2016-12-12 20:45:01 +01:00
Rafael J. Wysocki
2bf3b685a3 Merge schedutil governor updates for v4.10. 2016-12-12 20:44:25 +01:00
Rafael J. Wysocki
57def856f3 Merge branch 'pm-opp'
* pm-opp:
  PM / OPP: Don't WARN on multiple calls to dev_pm_opp_set_regulators()
  PM / OPP: Allow platform specific custom set_opp() callbacks
  PM / OPP: Separate out _generic_set_opp()
  PM / OPP: Add infrastructure to manage multiple regulators
  PM / OPP: Pass struct dev_pm_opp_supply to _set_opp_voltage()
  PM / OPP: Manage supply's voltage/current in a separate structure
  PM / OPP: Don't use OPP structure outside of rcu protected section
  PM / OPP: Reword binding supporting multiple regulators per device
  PM / OPP: Fix incorrect cpu-supply property in binding
  PM / OPP: Pass opp_table to dev_pm_opp_put_regulator()
  PM / OPP: fix debug/error messages in dev_pm_opp_of_get_sharing_cpus()
  PM / OPP: make _of_get_opp_desc_node() a static function
2016-12-12 20:44:01 +01:00
Rafael J. Wysocki
852b7fa228 Merge branches 'pm-core', 'pm-qos' and 'pm-avs'
* pm-core:
  PM / core: Fix bug in the error handling of async suspend
  PM / wakeirq: Fix dedicated wakeirq for drivers not using autosuspend
  PM / Runtime: Defer resuming of the device in pm_runtime_force_resume()
  PM / Runtime: Don't allow to suspend a device with an active child
  net: smsc911x: Synchronize the runtime PM status during system suspend
  PM / Runtime: Convert pm_runtime_set_suspended() to return an int
  PM / Runtime: Clarify comment in rpm_resume() when resuming the parent
  PM / Runtime: Remove the exported function pm_children_suspended()

* pm-qos:
  PM / QoS: Export dev_pm_qos_update_user_latency_tolerance
  PM / QoS: Fix writing 'auto' to pm_qos_latency_tolerance_us
  PM / QoS: Improve sysfs pm_qos_latency_tolerance validation

* pm-avs:
  PM / AVS: rockchip-io: make the log more consistent
2016-12-12 20:43:44 +01:00
Rafael J. Wysocki
cc773e75a0 Merge branch 'pm-domains'
* pm-domains:
  PM / Domains: Fix compatible for domain idle state
  PM / Domains: Do not print PM domain add error message if EPROBE_DEFER
  PM / Domains: Fix a warning message
  PM / Domains: check for negative return from of_count_phandle_with_args()
  PM / doc: Update device documentation for devices in IRQ-safe PM domains
  PM / Domains: Support IRQ safe PM domains
  PM / Domains: Abstract genpd locking
  dt/bindings / PM/Domains: Update binding for PM domain idle states
  PM / Domains: Save the fwnode in genpd_power_state
  PM / Domains: Allow domain power states to be read from DT
  PM / Domains: Add residency property to genpd states
  PM / Domains: Make genpd state allocation dynamic

Conflicts:
	arch/arm/mach-imx/gpc.c
2016-12-12 20:43:19 +01:00
Linus Torvalds
69973b8308 Linux 4.9 2016-12-11 11:17:54 -08:00
Linus Torvalds
2e4333c14d Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
 "Two more MIPS fixes for 4.9:

   - RTC: Return -ENODEV so an external RTC will be tried

   - Fix mask of GPE frequency

  These two have been tested on Imagination's automated test system and
  also both received positive reviews on the linux-mips mailing list"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Lantiq: Fix mask of GPE frequency
  MIPS: Return -ENODEV from weak implementation of rtc_mips_set_time
2016-12-11 10:17:39 -08:00
Hauke Mehrtens
ba735155b9 MIPS: Lantiq: Fix mask of GPE frequency
The hardware documentation says bit 11:10 are used for the GPE
frequency selection. Fix the mask in the define to match these bits.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Thomas Langer <thomas.langer@intel.com>
Cc: linux-mips@linux-mips.org
Cc: john@phrozen.org
Patchwork: https://patchwork.linux-mips.org/patch/14648/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-12-11 11:20:25 +01:00
Luuk Paulussen
edb6fa1a64 MIPS: Return -ENODEV from weak implementation of rtc_mips_set_time
The sync_cmos_clock function in kernel/time/ntp.c first tries to update
the internal clock of the cpu by calling the "update_persistent_clock64"
architecture specific function.  If this returns -ENODEV, it then tries
to update an external RTC using "rtc_set_ntp_time".

On the mips architecture, the weak implementation of the underlying
function would return 0 if it wasn't overridden.  This meant that the
sync_cmos_clock function would never try to update an external RTC
(if both CONFIG_GENERIC_CMOS_UPDATE and CONFIG_RTC_SYSTOHC are
configured)

Returning -ENODEV instead, means that an external RTC will be tried.

Signed-off-by: Luuk Paulussen <luuk.paulussen@alliedtelesis.co.nz>
Reviewed-by: Richard Laing <richard.laing@alliedtelesis.co.nz>
Reviewed-by: Scott Parlane <scott.parlane@alliedtelesis.co.nz>
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14649/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-12-11 11:19:04 +01:00
Linus Torvalds
045169816b Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:

   - Fix pointer size when caam is used with AArch64 boot loader on
     AArch32 kernel.

   - Fix ahash state corruption in marvell driver.

   - Fix buggy algif_aed tag handling.

   - Prevent mcryptd from being used with incompatible algorithms which
     can cause crashes"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: algif_aead - fix uninitialized variable warning
  crypto: mcryptd - Check mcryptd algorithm compatibility
  crypto: algif_aead - fix AEAD tag memory handling
  crypto: caam - fix pointer size for AArch64 boot loader, AArch32 kernel
  crypto: marvell - Don't corrupt state of an STD req for re-stepped ahash
  crypto: marvell - Don't copy hash operation twice into the SRAM
2016-12-10 09:47:13 -08:00
Linus Torvalds
cd6628953e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Limit the number of can filters to avoid > MAX_ORDER allocations.
    Fix from Marc Kleine-Budde.

 2) Limit GSO max size in netvsc driver to avoid problems with NVGRE
    configurations. From Stephen Hemminger.

 3) Return proper error when memory allocation fails in
    ser_gigaset_init(), from Dan Carpenter.

 4) Missing linkage undo in error paths of ipvlan_link_new(), from Gao
    Feng.

 5) Missing necessayr SET_NETDEV_DEV in lantiq and cpmac drivers, from
    Florian Fainelli.

 6) Handle probe deferral properly in smsc911x driver.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net: mlx5: Fix Kconfig help text
  net: smsc911x: back out silently on probe deferrals
  ibmveth: set correct gso_size and gso_type
  net: ethernet: cpmac: Call SET_NETDEV_DEV()
  net: ethernet: lantiq_etop: Call SET_NETDEV_DEV()
  vhost-vsock: fix orphan connection reset
  cxgb4/cxgb4vf: Assign netdev->dev_port with port ID
  driver: ipvlan: Unlink the upper dev when ipvlan_link_new failed
  ser_gigaset: return -ENOMEM on error instead of success
  NET: usb: cdc_mbim: add quirk for supporting Telit LE922A
  can: peak: fix bad memory access and free sequence
  phy: Don't increment MDIO bus refcount unless it's a different owner
  netvsc: reduce maximum GSO size
  drivers: net: cpsw-phy-sel: Clear RGMII_IDMODE on "rgmii" links
  can: raw: raw_setsockopt: limit number of can_filter that can be set
2016-12-10 09:23:19 -08:00
Christopher Covington
d33695fbfa net: mlx5: Fix Kconfig help text
Since the following commit, Infiniband and Ethernet have not been
mutually exclusive.

Fixes: 4aa17b28 mlx5: Enable mutual support for IB and Ethernet
Signed-off-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09 23:08:32 -05:00
Linus Walleij
ab4e4c07ac net: smsc911x: back out silently on probe deferrals
When trying to get a regulator we may get deferred and we see
this noise:

smsc911x 1b800000.ethernet-ebi2 (unnamed net_device) (uninitialized):
   couldn't get regulators -517

Then the driver continues anyway. Which means that the regulator
may not be properly retrieved and reference counted, and may be
switched off in case noone else is using it.

Fix this by returning silently on deferred probe and let the
system work it out.

Cc: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09 23:05:16 -05:00
Thomas Falcon
7b5967389f ibmveth: set correct gso_size and gso_type
This patch is based on an earlier one submitted
by Jon Maxwell with the following commit message:

"We recently encountered a bug where a few customers using ibmveth on the
same LPAR hit an issue where a TCP session hung when large receive was
enabled. Closer analysis revealed that the session was stuck because the
one side was advertising a zero window repeatedly.

We narrowed this down to the fact the ibmveth driver did not set gso_size
which is translated by TCP into the MSS later up the stack. The MSS is
used to calculate the TCP window size and as that was abnormally large,
it was calculating a zero window, even although the sockets receive buffer
was completely empty."

We rely on the Virtual I/O Server partition in a pseries
environment to provide the MSS through the TCP header checksum
field. The stipulation is that users should not disable checksum
offloading if rx packet aggregation is enabled through VIOS.

Some firmware offerings provide the MSS in the RX buffer.
This is signalled by a bit in the RX queue descriptor.

Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Pradeep Satyanarayana <pradeeps@linux.vnet.ibm.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: Jonathan Maxwell <jmaxwell37@gmail.com>
Reviewed-by: David Dai <zdai@us.ibm.com>
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09 22:47:22 -05:00
Linus Torvalds
810ac7b755 Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
 "Several fixes to the DSM (ACPI device specific method) marshaling
  implementation.

  I consider these urgent enough to send for 4.9 consideration since
  they fix the kernel's handling of ARS (Address Range Scrub) commands.
  Especially for platforms without machine-check-recovery capabilities,
  successful execution of ARS commands enables the platform to
  potentially break out of an infinite reboot problem if a media error
  is present in the boot path. There is also a one line fix for a
  device-dax read-only mapping regression.

  Commits 9a901f5495 ("acpi, nfit: fix extended status translations
  for ACPI DSMs") and 325896ffdf ("device-dax: fix private mapping
  restriction, permit read-only") are true regression fixes for changes
  introduced this cycle.

  Commit efda1b5d87 ("acpi, nfit, libnvdimm: fix / harden ars_status
  output length handling") fixes the kernel's handling of zero-length
  results, this never would have worked in the past, but we only just
  recently discovered a BIOS implementation that emits this arguably
  spec non-compliant result.

  The remaining two commits are additional fall out from thinking
  through the implications of a zero / truncated length result of the
  ARS Status command.

  In order to mitigate the risk that these changes introduce yet more
  regressions they are backstopped by a new unit test in commit
  a7de92dac9 ("tools/testing/nvdimm: unit test acpi_nfit_ctl()") that
  mocks up inputs to acpi_nfit_ctl()"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  device-dax: fix private mapping restriction, permit read-only
  tools/testing/nvdimm: unit test acpi_nfit_ctl()
  acpi, nfit: fix bus vs dimm confusion in xlat_status
  acpi, nfit: validate ars_status output buffer size
  acpi, nfit, libnvdimm: fix / harden ars_status output length handling
  acpi, nfit: fix extended status translations for ACPI DSMs
2016-12-09 11:27:22 -08:00
Linus Torvalds
861d75d098 Merge branch 'for-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "This is quite late but SCT Write Same support added during this cycle
  is broken subtly but seriously and it'd be best to disable it before
  v4.9 gets released.

  This contains two commits - one low impact sata_mv fix and the
  mentioned disabling of SCT Write Same"

* 'for-4.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata-scsi: disable SCT Write Same for the moment
  ata: sata_mv: check for errors when parsing nr-ports from dt
2016-12-09 11:07:45 -08:00
Linus Torvalds
af9468db44 A fix for an issue with ->d_revalidate() in ceph, causing frequent
kernel crashes.  Marked for stable - it goes back to 4.6, but started
 popping up only in 4.8.
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Merge tag 'ceph-for-4.9-rc9' of git://github.com/ceph/ceph-client

Pull ceph fix from Ilya Dryomov:
 "A fix for an issue with ->d_revalidate() in ceph, causing frequent
  kernel crashes.

  Marked for stable - it goes back to 4.6, but started popping up only
  in 4.8"

* tag 'ceph-for-4.9-rc9' of git://github.com/ceph/ceph-client:
  ceph: don't set req->r_locked_dir in ceph_d_revalidate
2016-12-09 11:02:40 -08:00
Linus Torvalds
1f6c926c0a ARM: Final batch of SoC fixes
A few fixes that have trickled in over the last week, all fixing minor
 errors in devicetrees -- UART pin assignment on Allwinner H3, correcting
 number of SATA ports on a Marvell-based Linkstation platform and a display
 clock fix for Freescale/NXP i.MX7D that fixes a freeze when starting up X.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Final batch of SoC fixes

  A few fixes that have trickled in over the last week, all fixing minor
  errors in devicetrees -- UART pin assignment on Allwinner H3,
  correcting number of SATA ports on a Marvell-based Linkstation
  platform and a display clock fix for Freescale/NXP i.MX7D that fixes a
  freeze when starting up X"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: orion5x: fix number of sata port for linkstation ls-gl
  ARM: dts: imx7d: fix LCDIF clock assignment
  dts: sun8i-h3: correct UART3 pin definitions
2016-12-09 11:00:39 -08:00
Linus Torvalds
751471201e m68k updates for 4.9 (take two)
- Build fix for drivers calling ndelay() in a conditional block
     without curly braces,
   - Defconfig updates.
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Merge tag 'm68k-for-v4.9-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k fixes from Geert Uytterhoeven:

 - build fix for drivers calling ndelay() in a conditional block without
   curly braces

 - defconfig updates

* tag 'm68k-for-v4.9-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Fix ndelay() macro
  m68k/defconfig: Update defconfigs for v4.9-rc1
2016-12-09 10:54:54 -08:00
Linus Torvalds
1ca17e9796 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fix from Dave Airlie:
 "Just a single fix for amdgpu to just suspend the gpu on 'shutdown'
  instead of shutting it down fully, as for some reason the hw was
  getting upset in some situations"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/amdgpu: just suspend the hw on pci shutdown
2016-12-09 10:50:49 -08:00
Linus Torvalds
2b41226b39 Revert "radix tree test suite: fix compilation"
This reverts commit 53855d10f4.

It shouldn't have come in yet - it depends on the changes in linux-next
that will come in during the next merge window.  As Matthew Wilcox says,
the test suite is broken with the current state without the revert.

Requested-by: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-09 10:41:42 -08:00
David S. Miller
1472d599a8 Merge branch 'ethernet-missing-netdev-parent'
Florian Fainelli says:

====================
net: ethernet: Make sure we set dev->dev.parent

This patch series builds atop:

ec988ad78e ("phy: Don't increment MDIO
bus refcount unless it's a different owner")

FMAN is the one that potentially needs patching as well (call
SET_NETDEV_DEV), but there appears to be no way that init_phy is
called right now, or there is not such an in-tree user. Madalin, can
you comment on that?
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 21:26:59 -05:00
Florian Fainelli
5579f28cc8 net: ethernet: cpmac: Call SET_NETDEV_DEV()
The TI CPMAC driver calls into PHYLIB which now checks for
net_device->dev.parent, so make sure we do set it before calling into
any MDIO/PHYLIB related function.

Fixes: ec988ad78e ("phy: Don't increment MDIO bus refcount unless it's a different owner")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 21:26:58 -05:00
Florian Fainelli
9cecb138e5 net: ethernet: lantiq_etop: Call SET_NETDEV_DEV()
The Lantiq Etop driver calls into PHYLIB which now checks for
net_device->dev.parent, so make sure we do set it before calling into
any MDIO/PHYLIB related function.

Fixes: ec988ad78e ("phy: Don't increment MDIO bus refcount unless it's a different owner")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 21:26:58 -05:00
Peng Tao
c4587631c7 vhost-vsock: fix orphan connection reset
local_addr.svm_cid is host cid. We should check guest cid instead,
which is remote_addr.svm_cid. Otherwise we end up resetting all
connections to all guests.

Cc: stable@vger.kernel.org [4.8+]
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 21:24:30 -05:00
Linus Torvalds
a37102dcd7 Merge branch 'parisc-4.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
 "Three important fixes for the parisc architecture.

  Dave provided two patches: One which purges the TLB before setting a
  PTE entry and a second one which drops unnecessary TLB flushes. Both
  patches have been tested for one week on the debian buildd servers and
  prevent random segmentation faults.

  The patch from me fixes a crash at boot inside the TLB measuring code
  on SMP machines with PA8000-PA8700 CPUs (specifically A500-44 and
  J5000 servers)"

* 'parisc-4.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix TLB related boot crash on SMP machines
  parisc: Remove unnecessary TLB purges from flush_dcache_page_asm and flush_icache_page_asm
  parisc: Purge TLB before setting PTE
2016-12-08 15:40:15 -08:00
David S. Miller
1e97426d29 linux-can-fixes-for-4.9-20161208
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Merge tag 'linux-can-fixes-for-4.9-20161208' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2016-12-08

this is a pull request for one patch.

Jiho Chu found and fixed a use-after-free error in the cleanup path in
the peak pcan USB CAN driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 18:22:40 -05:00
Arjun V
d2a007ab19 cxgb4/cxgb4vf: Assign netdev->dev_port with port ID
Added missing dev_port assignment in cxgb4vf driver.
Also made dev_port assignment of cxgb4 in sync with cxgb4vf driver.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Arjun V <arjun@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 18:20:08 -05:00
Helge Deller
24d0492b7d parisc: Fix TLB related boot crash on SMP machines
At bootup we run measurements to calculate the best threshold for when we
should be using full TLB flushes instead of just flushing a specific amount of
TLB entries.  This performance test is run over the kernel text segment.

But running this TLB performance test on the kernel text segment turned out to
crash some SMP machines when the kernel text pages were mapped as huge pages.

To avoid those crashes this patch simply skips this test on some SMP machines
and calculates an optimal threshold based on the maximum number of available
TLB entries and number of online CPUs.

On a technical side, this seems to happen:
The TLB measurement code uses flush_tlb_kernel_range() to flush specific TLB
entries with a page size of 4k (pdtlb 0(sr1,addr)). On UP systems this purge
instruction seems to work without problems even if the pages were mapped as
huge pages.  But on SMP systems the TLB purge instruction is broadcasted to
other CPUs. Those CPUs then crash the machine because the page size is not as
expected.  C8000 machines with PA8800/PA8900 CPUs were not affected by this
problem, because the required cache coherency prohibits to use huge pages at
all.  Sadly I didn't found any documentation about this behaviour, so this
finding is purely based on testing with phyiscal SMP machines (A500-44 and
J5000, both were 2-way boxes).

Cc: <stable@vger.kernel.org> # v3.18+
Signed-off-by: Helge Deller <deller@gmx.de>
2016-12-08 21:27:18 +01:00
Linus Torvalds
b4aafe77ec SCSI fixes on 20161208
One small fix for a regression in a prior fix (again).  This time the
 condition in the prior fix BUG_ON proved to be wrong under certain
 circumstances causing a BUG to trigger where it shouldn't in the lpfc
 driver.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fix from James Bottomley:
 "One small fix for a regression in a prior fix (again).

  This time the condition in the prior fix BUG_ON proved to be wrong
  under certain circumstances causing a BUG to trigger where it
  shouldn't in the lpfc driver"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: lpfc: fix oops/BUG in lpfc_sli_ringtxcmpl_put()
2016-12-08 12:04:41 -08:00
Gao Feng
1a31cc86ef driver: ipvlan: Unlink the upper dev when ipvlan_link_new failed
When netdev_upper_dev_unlink failed in ipvlan_link_new, need to
unlink the ipvlan dev with upper dev.

Signed-off-by: Gao Feng <fgao@ikuai8.com>
Acked-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 14:30:07 -05:00
Dan Carpenter
93a97c50cb ser_gigaset: return -ENOMEM on error instead of success
If we can't allocate the resources in gigaset_initdriver() then we
should return -ENOMEM instead of zero.

Fixes: 2869b23e4b ("[PATCH] drivers/isdn/gigaset: new M101 driver (v2)")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 14:19:17 -05:00
Roger Shimizu
038ccb3e8c ARM: dts: orion5x: fix number of sata port for linkstation ls-gl
Bug report from Debian [0] shows there's minor changed model of
Linkstation LS-GL that uses the 2nd SATA port of the SoC.
So it's necessary to enable two SATA ports, though for that specific
model only the 2nd one is used.

[0] https://bugs.debian.org/845611

Fixes: b1742ffa9d ("ARM: dts: orion5x: add device tree for buffalo linkstation ls-gl")
Reported-by: Ryan Tandy <ryan@nardis.ca>
Tested-by: Ryan Tandy <ryan@nardis.ca>
Signed-off-by: Roger Shimizu <rogershimizu@gmail.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-12-08 10:19:24 -08:00
Daniele Palmas
7b8076ce8a NET: usb: cdc_mbim: add quirk for supporting Telit LE922A
Telit LE922A MBIM based composition does not work properly
with altsetting toggle done in cdc_ncm_bind_common.

This patch adds CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE quirk
to avoid this procedure that, instead, is mandatory for
other modems.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Reviewed-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08 13:02:25 -05:00
추지호
b67d0dd7d0 can: peak: fix bad memory access and free sequence
Fix for bad memory access while disconnecting. netdev is freed before
private data free, and dev is accessed after freeing netdev.

This makes a slub problem, and it raise kernel oops with slub debugger
config.

Signed-off-by: Jiho Chu <jiho.chu@samsung.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2016-12-08 15:59:52 +01:00
Jeff Layton
c3f4688a08 ceph: don't set req->r_locked_dir in ceph_d_revalidate
This function sets req->r_locked_dir which is supposed to indicate to
ceph_fill_trace that the parent's i_rwsem is locked for write.
Unfortunately, there is no guarantee that the dir will be locked when
d_revalidate is called, so we really don't want ceph_fill_trace to do
any dcache manipulation from this context. Clear req->r_locked_dir since
it's clearly not safe to do that.

What we really want to know with d_revalidate is whether the dentry
still points to the same inode. ceph_fill_trace installs a pointer to
the inode in req->r_target_inode, so we can just compare that to
d_inode(dentry) to see if it's the same one after the lookup.

Also, since we aren't generally interested in the parent here, we can
switch to using a GETATTR to hint that to the MDS, which also means that
we only need to reserve one cap.

Finally, just remove the d_unhashed check. That's really outside the
purview of a filesystem's d_revalidate. If the thing became unhashed
while we're checking it, then that's up to the VFS to handle anyway.

Fixes: 200fd27c8f ("ceph: use lookup request to revalidate dentry")
Link: http://tracker.ceph.com/issues/18041
Reported-by: Donatas Abraitis <donatas.abraitis@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2016-12-08 14:32:16 +01:00
Stephan Mueller
678b5c6b22 crypto: algif_aead - fix uninitialized variable warning
In case the user provided insufficient data, the code may return
prematurely without any operation. In this case, the processed
data indicated with outlen is zero.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-08 20:09:22 +08:00
Linus Torvalds
318c8932dd Merge branch 'akpm' (patches from Andrew)
Merge more fixes from Andrew Morton:
 "3 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  kcov: add missing #include <linux/sched.h>
  radix tree test suite: fix compilation
  zram: restrict add/remove attributes to root only
2016-12-07 17:28:38 -08:00
Kefeng Wang
166ad0e1e2 kcov: add missing #include <linux/sched.h>
In __sanitizer_cov_trace_pc we use task_struct and fields within it, but
as we haven't included <linux/sched.h>, it is not guaranteed to be
defined.  While we usually happen to acquire the definition through a
transitive include, this is fragile (and hasn't been true in the past,
causing issues with backports).

Include <linux/sched.h> to avoid any fragility.

[mark.rutland@arm.com: rewrote changelog]
Link: http://lkml.kernel.org/r/1481007384-27529-1-git-send-email-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-07 17:10:00 -08:00
Matthew Wilcox
53855d10f4 radix tree test suite: fix compilation
Patch "lib/radix-tree: Convert to hotplug state machine" breaks the test
suite as it adds a call to cpuhp_setup_state_nocalls() which is not
currently emulated in the test suite.  Add it, and delete the emulation
of the old CPU hotplug mechanism.

Link: http://lkml.kernel.org/r/1480369871-5271-36-git-send-email-mawilcox@linuxonhyperv.com
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-07 17:10:00 -08:00
Sergey Senozhatsky
5c7e9ccd91 zram: restrict add/remove attributes to root only
zram hot_add sysfs attribute is a very 'special' attribute - reading
from it creates a new uninitialized zram device.  This file, by a
mistake, can be read by a 'normal' user at the moment, while only root
must be able to create a new zram device, therefore hot_add attribute
must have S_IRUSR mode, not S_IRUGO.

[akpm@linux-foundation.org: s/sence/sense/, reflow comment to use 80 cols]
Fixes: 6566d1a32b ("zram: add dynamic device add/remove functionality")
Link: http://lkml.kernel.org/r/20161205155845.20129-1-sergey.senozhatsky@gmail.com
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reported-by: Steven Allen <steven@stebalien.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: <stable@vger.kernel.org>    [4.2+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-07 17:10:00 -08:00
Viresh Kumar
e37d35082e devfreq: rk3399_dmc: Don't use OPP structures outside of RCU locks
The OPP structures are abused to the best here, without understanding
how the OPP core and RCU locks work.

In short, the OPP pointer saved in 'rk3399_dmcfreq' can become invalid
under your nose, as the OPP core may free it.

Fix various abuses around OPP structures and calls.

Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-08 01:46:07 +01:00
Viresh Kumar
d8323de3d4 devfreq: rk3399_dmc: Remove dangling rcu_read_unlock()
This call never had the rcu_read_lock() counterpart. Remove the unlock
part as well.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-08 01:46:06 +01:00
Viresh Kumar
c8ce82b9b9 devfreq: exynos: Don't use OPP structures outside of RCU locks
The OPP structures are abused to the best here, without understanding
how the OPP core and RCU locks work.

In short, the OPP pointer saved 'struct exynos_bus' can become invalid
under your nose, as the OPP core may free it.

Fix various abuses around OPP structures and calls.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-08 01:46:06 +01:00
Srinivas Pandruvada
bf006e149a Documentation: intel_pstate: Document HWP energy/performance hints
Updated documentation for the support of energy performance hint in
the HWP mode.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-08 01:43:05 +01:00
Srinivas Pandruvada
984edbdccc cpufreq: intel_pstate: Support for energy performance hints with HWP
It is possible to provide hints to the HWP algorithms in the processor
to be more performance centric to more energy centric. These hints are
provided by using HWP energy performance preference (EPP) or energy
performance bias (EPB) settings.

The scope of these settings is per logical processor, which means that
each of the logical processors in the package can be programmed with a
different value.

This change provides cpufreq sysfs interface to provide hint. For each
policy, two additional attributes will be available to check and provide
hint. These attributes will only be present when the intel_pstate driver
is using HWP mode.

These attributes are:
 - energy_performance_available_preferences
 - energy_performance_preference

To get list of supported hints:
$ cat energy_performance_available_preferences
default performance balance_performance balance_power power

The current preference can be read or changed via cpufreq sysfs
attribute "energy_performance_preference". Reading from this attribute
will display current effective setting changed via any method. User can
write any of the valid preference string to this attribute. User can
always restore to power-on default by writing "default".

Implementation
Since these hints can be provided by direct MSR write or using some tools
like x86_energy_perf_policy, the driver internally doesn't maintain any
state. The user operation will result in direct read/write of MSR: 0x774
(HWP_REQUEST_MSR). Also driver use read modify write to update other
fields in this MSR.

Summary of changes:
 - struct cpudata field epp_saved is renamed to epp_powersave, as this
   stores the value to restore once policy is switched from performance
   to powersave to restore original powersave EPP value.
 - A new struct cpudata field epp_saved is used to store the raw MSR
   EPP/EPB value when a CPU goes offline or on suspend and restore on
   online/resume. This ensures that EPP value is restored to correct
   value irrespective of the means used to set.
 - EPP/EPB value ranges are fixed for each preference, which can be
   set for the cpufreq sysfs, so user request is mapped to/from this
   range.
 - New attributes are only added when HWP is present.
 - Since EPP value of 0 is valid the fields are initialized to
   -EINVAL when not valid. The field epp_default is read only once
   after powerup to avoid reading on subsequent CPU online operation
 - New suspend callback to store epp on suspend operation
 - Don't invalidate old epp_saved field on resume and online as now
   we can restore last epp value on suspend and this field can still
   have old EPP value sampled during switch to performance from
   powersave.
 - While here optimized setting of cpu_data->epp_powersave = epp in
   intel_pstate_hwp_set() as this was done in both true and false
   paths.
 - epp/epb set function returns error to caller on failure to pass
   on to user space for display.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-12-08 01:43:05 +01:00