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In case of error, the function of_platform_device_create() returns
NULL pointer not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.
Fixes: 677a60bd2003 ("firmware: arm_sdei: Discover SDEI support via ACPI")
Acked-by: James Morse <james.morse@arm.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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We set dsu_pmu->num_counters to -1, when the DSU is allocated
but not initialised when none of the CPUs are active in the DSU.
However, we use an unsigned field for num_counters. Switch this
to a signed field.
Fixes: 7520fa99246d ("perf: ARM DynamIQ Shared Unit PMU support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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SDEI defines a new ACPI table to indicate the presence of the interface.
The conduit is discovered in the same way as PSCI.
For ACPI we need to create the platform device ourselves as SDEI doesn't
have an entry in the DSDT.
The SDEI platform device should be created after ACPI has been initialised
so that we can parse the table, but before GHES devices are created, which
may register SDE events if they use SDEI as their notification type.
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Private SDE events are per-cpu, and need to be registered and enabled
on each CPU.
Hide this detail from the caller by adapting our {,un}register and
{en,dis}able calls to send an IPI to each CPU if the event is private.
CPU private events are unregistered when the CPU is powered-off, and
re-registered when the CPU is brought back online. This saves bringing
secondary cores back online to call private_reset() on shutdown, kexec
and resume from hibernate.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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When a CPU enters an idle lower-power state or is powering off, we
need to mask SDE events so that no events can be delivered while we
are messing with the MMU as the registered entry points won't be valid.
If the system reboots, we want to unregister all events and mask the CPUs.
For kexec this allows us to hand a clean slate to the next kernel
instead of relying on it to call sdei_{private,system}_data_reset().
For hibernate we unregister all events and re-register them on restore,
in case we restored with the SDE code loaded at a different address.
(e.g. KASLR).
Add all the notifiers necessary to do this. We only support shared events
so all events are left registered and enabled over CPU hotplug.
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
[catalin.marinas@arm.com: added CPU_PM_ENTER_FAILED case]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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The Software Delegated Exception Interface (SDEI) is an ARM standard
for registering callbacks from the platform firmware into the OS.
This is typically used to implement firmware notifications (such as
firmware-first RAS) or promote an IRQ that has been promoted to a
firmware-assisted NMI.
Add the code for detecting the SDEI version and the framework for
registering and unregistering events. Subsequent patches will add the
arch-specific backend code and the necessary power management hooks.
Only shared events are supported, power management, private events and
discovery for ACPI systems will be added by later patches.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/will/linux
Support for the Cluster PMU part of the ARM DynamIQ Shared Unit (DSU).
* 'for-next/perf' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux:
perf: ARM DynamIQ Shared Unit PMU support
dt-bindings: Document devicetree binding for ARM DSU PMU
arm_pmu: Use of_cpu_node_to_id helper
arm64: Use of_cpu_node_to_id helper for CPU topology parsing
irqchip: gic-v3: Use of_cpu_node_to_id helper
coresight: of: Use of_cpu_node_to_id helper
of: Add helper for mapping device node to logical CPU number
perf: Export perf_event_update_userpage
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Entry into recent versions of ARM Trusted Firmware will invalidate the CPU
branch predictor state in order to protect against aliasing attacks.
This patch exposes the PSCI "VERSION" function via psci_ops, so that it
can be invoked outside of the PSCI driver where necessary.
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Add support for the Cluster PMU part of the ARM DynamIQ Shared Unit (DSU).
The DSU integrates one or more cores with an L3 memory system, control
logic, and external interfaces to form a multicore cluster. The PMU
allows counting the various events related to L3, SCU etc, along with
providing a cycle counter.
The PMU can be accessed via system registers, which are common
to the cores in the same cluster. The PMU registers follow the
semantics of the ARMv8 PMU, mostly, with the exception that
the counters record the cluster wide events.
This driver is mostly based on the ARMv8 and CCI PMU drivers.
The driver only supports ARM64 at the moment. It can be extended
to support ARM32 by providing register accessors like we do in
arch/arm64/include/arm_dsu_pmu.h.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Use the new generic helper, of_cpu_node_to_id(), to map a
a phandle to the logical CPU number while parsing the
PMU irq affinity.
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Use the new generic helper of_cpu_node_to_id() instead
of using our own version to map a device node to logical CPU
number.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Reuse the new generic helper, of_cpu_node_to_id() to map a
given CPU phandle to a logical CPU number.
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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Add a helper to map a device node to a logical CPU number to avoid
duplication. Currently this is open coded in different places (e.g
gic-v3, coresight). The helper tries to map device node to a "possible"
logical CPU id, which may not be online yet. It is the responsibility
of the user to make sure that the CPU is online. The helper uses
of_cpu_device_node_get() to retrieve the device node for a given CPU
(which uses per_cpu data if available else falls back to slower
of_get_cpu_node()).
Cc: devicetree@vger.kernel.org
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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When running with the kernel unmapped whilst at EL0, the virtually-addressed
SPE buffer is also unmapped, which can lead to buffer faults if userspace
profiling is enabled and potentially also when writing back kernel samples
unless an expensive drain operation is performed on exception return.
For now, fail the SPE driver probe when arm64_kernel_unmapped_at_el0().
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Laura Abbott <labbott@redhat.com>
Tested-by: Shanker Donthineni <shankerd@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
- A revert of all SCPI changes from the 4.15 merge window. They had
regressions on the Amlogic platforms, and the submaintainer isn't
around to fix these bugs due to vacation, etc. So we agreed to revert
and revisit in next release cycle.
- A series fixing a number of bugs for ARM CCN interconnect, around
module unload, smp_processor_id() in preemptable context, and fixing
some memory allocation failure checks.
- A handful of devicetree fixes for different platforms, fixing
warnings and errors that were previously ignored by the compiler.
- The usual set of mostly minor fixes for different platforms.
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
ARM64: dts: meson-gx: fix UART pclk clock name
ARM: omap2: hide omap3_save_secure_ram on non-OMAP3 builds
arm: dts: nspire: Add missing #phy-cells to usb-nop-xceiv
ARM: dts: Fix dm814x missing phy-cells property
ARM: dts: Fix elm interrupt compiler warning
bus: arm-ccn: fix module unloading Error: Removing state 147 which has instances left.
bus: arm-cci: Fix use of smp_processor_id() in preemptible context
bus: arm-ccn: Fix use of smp_processor_id() in preemptible context
bus: arm-ccn: Simplify code
bus: arm-ccn: Check memory allocation failure
bus: arm-ccn: constify attribute_group structures.
firmware: arm_scpi: Revert updates made during v4.15 merge window
arm: dts: marvell: Add missing #phy-cells to usb-nop-xceiv
arm64: dts: sort vendor subdirectories in Makefile alphabetically
meson-gx-socinfo: Fix package id parsing
ARM: meson: fix spelling mistake: "Couln't" -> "Couldn't"
ARM: dts: meson: fix the memory region of the GPIO interrupt controller
ARM: dts: meson: correct the sort order for the the gpio_intc node
MAINTAINERS: exclude other Socionext SoC DT files from ARM/UNIPHIER entry
arm64: dts: uniphier: remove unnecessary interrupt-parent
...
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git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into fixes
Amlogic fixes for v4.15-rc
- GPIO interrupt fixes
- socinfo fix for GX series
- fix typo
* tag 'amlogic-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
ARM64: dts: meson-gx: fix UART pclk clock name
meson-gx-socinfo: Fix package id parsing
ARM: meson: fix spelling mistake: "Couln't" -> "Couldn't"
ARM: dts: meson: fix the memory region of the GPIO interrupt controller
ARM: dts: meson: correct the sort order for the the gpio_intc node
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.linaro.org/people/pawel.moll/linux into fixes
bus: ARM CCN and CCI PMU driver fixes
This is a bunch of fixes CCN and (guest starring this time) CCI drivers.
* Check for potential of failed allocation for the driver name string
* Manage CPU ID properly at allocation (both CCN and CCI)
* Fix module unload warnings related to objects release order
* Small improvements like using allocating printfs and proper
attributes constification
The one fixing potential issues have been cc-ed to stable.
* tag 'ccn/fixes-for-4.15' of git://git.linaro.org/people/pawel.moll/linux:
bus: arm-ccn: fix module unloading Error: Removing state 147 which has instances left.
bus: arm-cci: Fix use of smp_processor_id() in preemptible context
bus: arm-ccn: Fix use of smp_processor_id() in preemptible context
bus: arm-ccn: Simplify code
bus: arm-ccn: Check memory allocation failure
bus: arm-ccn: constify attribute_group structures.
Signed-off-by: Olof Johansson <olof@lixom.net>
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Pull networking fixes from David Miller:
1) CAN fixes from Martin Kelly (cancel URBs properly in all the CAN usb
drivers).
2) Revert returning -EEXIST from __dev_alloc_name() as this propagates
to userspace and broke some apps. From Johannes Berg.
3) Fix conn memory leaks and crashes in TIPC, from Jon Malloc and Cong
Wang.
4) Gianfar MAC can't do EEE so don't advertise it by default, from
Claudiu Manoil.
5) Relax strict netlink attribute validation, but emit a warning. From
David Ahern.
6) Fix regression in checksum offload of thunderx driver, from Florian
Westphal.
7) Fix UAPI bpf issues on s390, from Hendrik Brueckner.
8) New card support in iwlwifi, from Ihab Zhaika.
9) BBR congestion control bug fixes from Neal Cardwell.
10) Fix port stats in nfp driver, from Pieter Jansen van Vuuren.
11) Fix leaks in qualcomm rmnet, from Subash Abhinov Kasiviswanathan.
12) Fix DMA API handling in sh_eth driver, from Thomas Petazzoni.
13) Fix spurious netpoll warnings in bnxt_en, from Calvin Owens.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (67 commits)
net: mvpp2: fix the RSS table entry offset
tcp: evaluate packet losses upon RTT change
tcp: fix off-by-one bug in RACK
tcp: always evaluate losses in RACK upon undo
tcp: correctly test congestion state in RACK
bnxt_en: Fix sources of spurious netpoll warnings
tcp_bbr: reset long-term bandwidth sampling on loss recovery undo
tcp_bbr: reset full pipe detection on loss recovery undo
tcp_bbr: record "full bw reached" decision in new full_bw_reached bit
sfc: pass valid pointers from efx_enqueue_unwind
gianfar: Disable EEE autoneg by default
tcp: invalidate rate samples during SACK reneging
can: peak/pcie_fd: fix potential bug in restarting tx queue
can: usb_8dev: cancel urb on -EPIPE and -EPROTO
can: kvaser_usb: cancel urb on -EPIPE and -EPROTO
can: esd_usb2: cancel urb on -EPIPE and -EPROTO
can: ems_usb: cancel urb on -EPIPE and -EPROTO
can: mcba_usb: cancel urb on -EPROTO
usbnet: fix alignment for frames with no ethernet header
tcp: use current time in tcp_rcv_space_adjust()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"A series of fixes for the media subsytem:
- The largest amount of fixes in this series is with regards to
comments that aren't kernel-doc, but start with "/**".
A new check added for 4.15 makes it to produce a *huge* amount of
new warnings (I'm compiling here with W=1). Most of the patches in
this series fix those.
No code changes - just comment changes at the source files
- rc: some fixed in order to better handle RC repetition codes
- v4l-async: use the v4l2_dev from the root notifier when matching
sub-devices
- v4l2-fwnode: Check subdev count after checking port
- ov 13858 and et8ek8: compilation fix with randconfigs
- usbtv: a trivial new USB ID addition
- dibusb-common: don't do DMA on stack on firmware load
- imx274: Fix error handling, add MAINTAINERS entry
- sir_ir: detect presence of port"
* tag 'media/v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (50 commits)
media: imx274: Fix error handling, add MAINTAINERS entry
media: v4l: async: use the v4l2_dev from the root notifier when matching sub-devices
media: v4l2-fwnode: Check subdev count after checking port
media: et8ek8: select V4L2_FWNODE
media: ov13858: Select V4L2_FWNODE
media: rc: partial revert of "media: rc: per-protocol repeat period"
media: dvb: i2c transfers over usb cannot be done from stack
media: dvb-frontends: complete kernel-doc markups
media: docs: add documentation for frontend attach info
media: dvb_frontends: fix kernel-doc macros
media: drivers: remove "/**" from non-kernel-doc comments
media: lm3560: add a missing kernel-doc parameter
media: rcar_jpu: fix two kernel-doc markups
media: vsp1: add a missing kernel-doc parameter
media: soc_camera: fix a kernel-doc markup
media: mt2063: fix some kernel-doc warnings
media: radio-wl1273: fix a parameter name at kernel-doc macro
media: s3c-camif: add missing description at s3c_camif_find_format()
media: mtk-vpu: add description for wdt fields at struct mtk_vpu
media: vdec: fix some kernel-doc warnings
...
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git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"This pull is a bit larger than I'd like but a large bunch of it is
license fixes, AMD wanted to fix the licenses for a bunch of files
that were missing them,
Otherwise a bunch of TTM regression fix since the hugepage support,
some i915 and gvt fixes, a core connector free in a safe context fix,
and one bridge fix"
* tag 'drm-fixes-for-v4.15-rc3' of git://people.freedesktop.org/~airlied/linux: (26 commits)
drm/bridge: analogix dp: Fix runtime PM state in get_modes() callback
Revert "drm/i915: Display WA #1133 WaFbcSkipSegments:cnl, glk"
drm/vc4: Fix false positive WARN() backtrace on refcount_inc() usage
drm/i915: Call i915_gem_init_userptr() before taking struct_mutex
drm/exynos: remove unnecessary function declaration
drm/exynos: remove unnecessary descrptions
drm/exynos: gem: Drop NONCONTIG flag for buffers allocated without IOMMU
drm/exynos: Fix dma-buf import
drm/ttm: swap consecutive allocated pooled pages v4
drm: safely free connectors from connector_iter
drm/i915/gvt: set max priority for gvt context
drm/i915/gvt: Don't mark vgpu context as inactive when preempted
drm/i915/gvt: Limit read hw reg to active vgpu
drm/i915/gvt: Export intel_gvt_render_mmio_to_ring_id()
drm/i915/gvt: Emulate PCI expansion ROM base address register
drm/ttm: swap consecutive allocated cached pages v3
drm/ttm: roundup the shrink request to prevent skip huge pool
drm/ttm: add page order support in ttm_pages_put
drm/ttm: add set_pages_wb for handling page order more than zero
drm/ttm: add page order in page pool
...
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Pull md fixes from Shaohua Li:
"Some MD fixes.
The notable one is a raid5-cache deadlock bug with dm-raid, others are
not significant"
* tag 'md/4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
md/raid1/10: add missed blk plug
md: limit mdstat resync progress to max_sectors
md/r5cache: move mddev_lock() out of r5c_journal_mode_set()
md/raid5: correct degraded calculation in raid5_error
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
"Another set of DT fixes:
- Fixes from overlay code rework. A trifecta of fixes to the locking,
an out of bounds access, and a memory leak in of_overlay_apply()
- Clean-up at25 eeprom binding document
- Remove leading '0x' in unit-addresses from binding docs"
* tag 'devicetree-fixes-for-4.15-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: overlay: Make node skipping in init_overlay_changeset() clearer
of: overlay: Fix out-of-bounds write in init_overlay_changeset()
of: overlay: Fix (un)locking in of_overlay_apply()
of: overlay: Fix memory leak in of_overlay_apply() error path
dt-bindings: eeprom: at25: Document device-specific compatible values
dt-bindings: eeprom: at25: Grammar s/are can/can/
dt-bindings: Remove leading 0x from bindings notation
of: overlay: Remove else after goto
of: Spelling s/changset/changeset/
of: unittest: Remove bogus overlay mutex release from overlay_data_add()
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Pull virtio bugfixes from Michael Tsirkin:
"A couple of minor bugfixes"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_net: fix return value check in receive_mergeable()
virtio_mmio: add cleanup for virtio_mmio_remove
virtio_mmio: add cleanup for virtio_mmio_probe
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Just two small fixes for the new pvcalls frontend driver"
* tag 'for-linus-4.15-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/pvcalls: Fix a check in pvcalls_front_remove()
xen/pvcalls: check for xenbus_read() errors
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2017-12-08
this is a pull request of 6 patches for net/master.
Martin Kelly provides 5 patches for various USB based CAN drivers, that
properly cancel the URBs on adapter unplug, so that the driver doesn't
end up in an endless loop. Stephane Grosjean provides a patch to restart
the tx queue if zero length packages are transmitted.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 4.15
Second set of fixes for 4.15. This time a lot of iwlwifi patches and
two brcmfmac patches. Most important here are the MIC and IVC fixes
for iwlwifi to unbreak 9000 series.
iwlwifi
* fix rate-scaling to not start lowest possible rate
* fix the TX queue hang detection for AP/GO modes
* fix the TX queue hang timeout in monitor interfaces
* fix packet injection
* remove a wrong error message when dumping PCI registers
* fix race condition with RF-kill
* tell mac80211 when the MIC has been stripped (9000 series)
* tell mac80211 when the IVC has been stripped (9000 series)
* add 2 new PCI IDs, one for 9000 and one for 22000
* fix a queue hang due during a P2P Remain-on-Channel operation
brcmfmac
* fix a race which sometimes caused a crash during sdio unbind
* fix a kernel-doc related build error
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The macro used to access or set an RSS table entry was using an offset
of 8, while it should use an offset of 0. This lead to wrongly configure
the RSS table, not accessing the right entries.
Fixes: 1d7d15d79fb4 ("net: mvpp2: initialize the RSS tables")
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After applying 2270bc5da3497945 ("bnxt_en: Fix netpoll handling") and
903649e718f80da2 ("bnxt_en: Improve -ENOMEM logic in NAPI poll loop."),
we still see the following WARN fire:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1875170 at net/core/netpoll.c:165 netpoll_poll_dev+0x15a/0x160
bnxt_poll+0x0/0xd0 exceeded budget in poll
<snip>
Call Trace:
[<ffffffff814be5cd>] dump_stack+0x4d/0x70
[<ffffffff8107e013>] __warn+0xd3/0xf0
[<ffffffff8107e07f>] warn_slowpath_fmt+0x4f/0x60
[<ffffffff8179519a>] netpoll_poll_dev+0x15a/0x160
[<ffffffff81795f38>] netpoll_send_skb_on_dev+0x168/0x250
[<ffffffff817962fc>] netpoll_send_udp+0x2dc/0x440
[<ffffffff815fa9be>] write_ext_msg+0x20e/0x250
[<ffffffff810c8125>] call_console_drivers.constprop.23+0xa5/0x110
[<ffffffff810c9549>] console_unlock+0x339/0x5b0
[<ffffffff810c9a88>] vprintk_emit+0x2c8/0x450
[<ffffffff810c9d5f>] vprintk_default+0x1f/0x30
[<ffffffff81173df5>] printk+0x48/0x50
[<ffffffffa0197713>] edac_raw_mc_handle_error+0x563/0x5c0 [edac_core]
[<ffffffffa0197b9b>] edac_mc_handle_error+0x42b/0x6e0 [edac_core]
[<ffffffffa01c3a60>] sbridge_mce_output_error+0x410/0x10d0 [sb_edac]
[<ffffffffa01c47cc>] sbridge_check_error+0xac/0x130 [sb_edac]
[<ffffffffa0197f3c>] edac_mc_workq_function+0x3c/0x90 [edac_core]
[<ffffffff81095f8b>] process_one_work+0x19b/0x480
[<ffffffff810967ca>] worker_thread+0x6a/0x520
[<ffffffff8109c7c4>] kthread+0xe4/0x100
[<ffffffff81884c52>] ret_from_fork+0x22/0x40
This happens because we increment rx_pkts on -ENOMEM and -EIO, resulting
in rx_pkts > 0. Fix this by only bumping rx_pkts if we were actually
given a non-zero budget.
Signed-off-by: Calvin Owens <calvinowens@fb.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The bytes_compl and pkts_compl pointers passed to efx_dequeue_buffers
cannot be NULL. Add a paranoid warning to check this condition and fix
the one case where they were NULL.
efx_enqueue_unwind() is called very rarely, during error handling.
Without this fix it would fail with a NULL pointer dereference in
efx_dequeue_buffer, with efx_enqueue_skb in the call stack.
Fixes: e9117e5099ea ("sfc: Firmware-Assisted TSO version 2")
Reported-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Tested-by: Jarod Wilson <jarod@redhat.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This controller does not support EEE, but it may connect to a PHY
which supports EEE and advertises EEE by default, while its link
partner also advertises EEE. If this happens, the PHY enters low
power mode when the traffic rate is low and causes packet loss.
This patch disables EEE advertisement by default for any PHY that
gianfar connects to, to prevent the above unwanted outcome.
Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
Tested-by: Yangbo Lu <Yangbo.lu@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
- three more patches in regard to the SPDX license tags. The missing
tags for the files in arch/s390/kvm will be merged via the KVM tree.
With that all s390 related files should have their SPDX tags.
- a patch to get rid of 'struct timespec' in the DASD driver.
- bug fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: fix compat system call table
s390/mm: fix off-by-one bug in 5-level page table handling
s390: Remove redudant license text
s390: add a few more SPDX identifiers
s390/dasd: prevent prefix I/O error
s390: always save and restore all registers on context switch
s390/dasd: remove 'struct timespec' usage
s390/qdio: restrict target-full handling to IQDIO
s390/qdio: consider ERROR buffers for inbound-full condition
s390/virtio: add BSD license to virtio-ccw
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"This fixes an out of bounds warning from KASAN in the ACPI CPPC
driver"
* tag 'acpi-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / CPPC: Fix KASAN global out of bounds warning
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"This fixes an issue in the device runtime PM framework that prevents
customer devices from resuming if runtime PM is disabled for one or
more of their supplier devices (as reflected by device links between
those devices)"
* tag 'pm-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / runtime: Fix handling of suppliers with disabled runtime PM
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Make it more clear that nodes without "__overlay__" subnodes are
skipped, by reverting the logic and using continue.
This also reduces indentation level.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
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If an overlay has no "__symbols__" node, but it has nodes without
"__overlay__" subnodes at the end (e.g. a "__fixups__" node), after
filling in all fragments for nodes with "__overlay__" subnodes,
"fragment = &fragments[cnt]" will point beyond the end of the allocated
array.
Hence writing to "fragment->overlay" will overwrite unallocated memory,
which may lead to a crash later.
Fix this by deferring both the assignment to "fragment" and the
offending write afterwards until we know for sure the node has an
"__overlay__" subnode, and thus a valid entry in "fragments[]".
Fixes: 61b4de4e0b384f4a ("of: overlay: minor restructuring")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
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Don't rely on can_get_echo_skb() return value to wake the network tx
queue up: can_get_echo_skb() returns 0 if the echo array slot was not
occupied, but also when the DLC of the released echo frame was 0.
Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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In mcba_usb, we have observed that when you unplug the device, the driver will
endlessly resubmit failing URBs, which can cause CPU stalls. This issue
is fixed in mcba_usb by catching the codes seen on device disconnect
(-EPIPE and -EPROTO).
This driver also resubmits in the case of -EPIPE and -EPROTO, so fix it
in the same way.
Signed-off-by: Martin Kelly <mkelly@xevo.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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In mcba_usb, we have observed that when you unplug the device, the driver will
endlessly resubmit failing URBs, which can cause CPU stalls. This issue
is fixed in mcba_usb by catching the codes seen on device disconnect
(-EPIPE and -EPROTO).
This driver also resubmits in the case of -EPIPE and -EPROTO, so fix it
in the same way.
Signed-off-by: Martin Kelly <mkelly@xevo.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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In mcba_usb, we have observed that when you unplug the device, the driver will
endlessly resubmit failing URBs, which can cause CPU stalls. This issue
is fixed in mcba_usb by catching the codes seen on device disconnect
(-EPIPE and -EPROTO).
This driver also resubmits in the case of -EPIPE and -EPROTO, so fix it
in the same way.
Signed-off-by: Martin Kelly <mkelly@xevo.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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In mcba_usb, we have observed that when you unplug the device, the driver will
endlessly resubmit failing URBs, which can cause CPU stalls. This issue
is fixed in mcba_usb by catching the codes seen on device disconnect
(-EPIPE and -EPROTO).
This driver also resubmits in the case of -EPIPE and -EPROTO, so fix it
in the same way.
Signed-off-by: Martin Kelly <mkelly@xevo.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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When we unplug the device, we can see both -EPIPE and -EPROTO depending
on exact timing and what system we run on. If we continue to resubmit
URBs, they will immediately fail, and they can cause stalls, especially
on slower CPUs.
Fix this by not resubmitting on -EPROTO, as we already do on -EPIPE.
Signed-off-by: Martin Kelly <mkelly@xevo.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
regression fix for vc4 + rpm stable fix for analogix bridge
* tag 'drm-misc-fixes-2017-12-07' of git://anongit.freedesktop.org/drm/drm-misc:
drm/bridge: analogix dp: Fix runtime PM state in get_modes() callback
drm/vc4: Fix false positive WARN() backtrace on refcount_inc() usage
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix for fd.o bug #103997 CNL eDP + HDMI causing a machine hard hang (James)
- Fix to allow suspending with a wedged GPU to hopefully unwedge it (Chris)
- Fix for Gen2 vblank timestap/frame counter jumps (Ville)
- Revert of a W/A for enabling FBC on CNL/GLK for certain images
and sizes (Rodrigo)
- Lockdep fix for i915 userptr code (Chris)
gvt-fixes-2017-12-06
- Fix invalid hw reg read value for vGPU (Xiong)
- Fix qemu warning on PCI ROM bar missing (Changbin)
- Workaround preemption regression (Zhenyu)
* tag 'drm-intel-fixes-2017-12-07' of git://anongit.freedesktop.org/drm/drm-intel:
Revert "drm/i915: Display WA #1133 WaFbcSkipSegments:cnl, glk"
drm/i915: Call i915_gem_init_userptr() before taking struct_mutex
drm/i915/gvt: set max priority for gvt context
drm/i915/gvt: Don't mark vgpu context as inactive when preempted
drm/i915/gvt: Limit read hw reg to active vgpu
drm/i915/gvt: Export intel_gvt_render_mmio_to_ring_id()
drm/i915/gvt: Emulate PCI expansion ROM base address register
drm/i915/cnl: Mask previous DDI - PLL mapping
drm/i915: Fix vblank timestamp/frame counter jumps on gen2
drm/i915: Skip switch-to-kernel-context on suspend when wedged
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The qmi_wwan minidriver support a 'raw-ip' mode where frames are
received without any ethernet header. This causes alignment issues
because the skbs allocated by usbnet are "IP aligned".
Fix by allowing minidrivers to disable the additional alignment
offset. This is implemented using a per-device flag, since the same
minidriver also supports 'ethernet' mode.
Fixes: 32f7adf633b9 ("net: qmi_wwan: support "raw IP" mode")
Reported-and-tested-by: Jay Foster <jay@systech.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The MDIO busses need to be unregistered before they are freed,
otherwise BUG() is called. Add a call to the unregister code if the
registration fails, since we can have multiple busses, of which some
may correctly register before one fails. This requires moving the code
around a little.
Fixes: a3c53be55c95 ("net: dsa: mv88e6xxx: Support multiple MDIO busses")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When removing the interrupt handling code, we should mask the
generation of interrupts. The code however unmasked all
interrupts. This can then cause a new interrupt. We then get into a
deadlock where the interrupt thread is waiting to run, and the code
continues, trying to remove the interrupt handler, which means waiting
for the thread to complete. On a UP machine this deadlocks.
Fix so we really mask interrupts in the hardware. The same error is
made in the error path when install the interrupt handling code.
Fixes: 3460a5770ce9 ("net: dsa: mv88e6xxx: Mask g1 interrupts and free interrupt")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If clk_set_rate() fails, we should disable clk before return.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Branislav Radocaj <branislav@radocaj.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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add appropriate calls to clk_disable_unprepare() by jumping to out_mdio
in case orion_mdio_probe() returns -EPROBE_DEFER.
Found by Linux Driver Verification project (linuxtesting.org).
Fixes: 3d604da1e954 ("net: mvmdio: get and enable optional clock")
Signed-off-by: Tobias Jordan <Tobias.Jordan@elektrobit.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The function virtqueue_get_buf_ctx() could return NULL, the return
value 'buf' need to be checked with NULL, not value 'ctx'.
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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cleanup all resource allocated by virtio_mmio_probe.
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
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