Take reference of the OPP table while adding and removing OPPs, that
helps us remove special checks in _remove_opp_table().
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Now that we have proper kernel reference infrastructure in place for OPP
tables, use it to guarantee that the OPP table isn't freed while being
used by the callers of dev_pm_opp_set_*() APIs.
Make them all return the pointer to the OPP table after taking its
reference and put the reference back with dev_pm_opp_put_*() APIs.
Now that the OPP table wouldn't get freed while these routines are
executing after dev_pm_opp_get_opp_table() is called, there is no need
to take opp_table_lock. Drop them as well.
Remove the rcu specific comments from these routines as they aren't
relevant anymore.
Note that prototypes of dev_pm_opp_{set|put}_regulators() were already
updated by another patch.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add kref to struct opp_table for easier accounting of the OPP table.
Note that the new routine dev_pm_opp_get_opp_table() takes the reference
from under the opp_table_lock, which guarantees that the OPP table
doesn't get freed unless dev_pm_opp_put_opp_table() is called for the
OPP table.
Two separate release mechanisms are added: locked and unlocked. In
unlocked version the routines aren't required to take/drop
opp_table_lock as the callers have already done that. This is required
to avoid breaking git bisect, otherwise we may get lockdeps between
commits. Once all the users of OPP table are updated the unlocked
version shall be removed.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add per OPP table lock to protect opp_table->opp_list.
Note that at few places opp_list is used under the rcu_read_lock() and
so a mutex can't be added there for now. This will be fixed by a later
patch.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Split out parts of _add_opp_table() and _remove_opp_table() into
separate routines. This improves readability as well.
Should result in no functional changes.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Let the OPP core provide helpers to register notifiers for any device,
instead of exposing srcu_head outside of the core.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There is only one user of dev_pm_opp_get_suspend_opp() and that uses it
to get the OPP rate for the suspend_opp.
Rename dev_pm_opp_get_suspend_opp() as dev_pm_opp_get_suspend_opp_freq()
and return the rate directly from it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There is no point in trying to find/allocate the table for every OPP
that is added for a device. It would be far more efficient to allocate
the table only once and pass its pointer to the routines that add the
OPP entry.
Locking is removed from _opp_add_static_v2() and _opp_add_v1() now as
the callers call them with that lock already held.
Call to _remove_opp_table() routine is also removed from _opp_free()
now, as opp_table isn't allocated from within _opp_allocate(). This is
handled by the routines which created the OPP table in the first place.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Later patches would want to remove OPP table (and its OPPs) using the
opp_table pointer instead of 'dev'.
In order to prepare for that, rename _dev_pm_opp_remove_table() as
_dev_pm_opp_find_and_remove_table() split out part of it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The OPPs which are never successfully added using _opp_add() are not
required to be freed with the _opp_remove() routine, as a simple kfree()
is enough for them.
Introduce a new light weight routine _opp_free(), which will do that.
That also helps us removing the 'notify' parameter to _opp_remove(),
which isn't required anymore.
Note that _opp_free() contains a call to _remove_opp_table() as the OPP
table might have been added for this very OPP only. The
_remove_opp_table() routine returns quickly if there are more OPPs in
the table. This will be simplified in later patches though.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The code adding static OPPs for V2 bindings already does so. Make the V1
bindings specific code behave the same.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Make the naming consistent with how other routines are named.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This TODO doesn't make sense anymore as we have all the information in a
single OPP table. Remove it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There are two types of duplicate OPPs that get different behavior from
the core:
A) An earlier OPP is marked 'available' and has same freq/voltages as
the new one.
B) An earlier OPP with same frequency, but is marked 'unavailable' OR
doesn't have same voltages as the new one.
The OPP core returns 0 for the first one, but -EEXIST for the second.
While the OPP core returns 0 for the first case, its callers don't free
the newly allocated OPP structure which isn't used anymore. Fix that by
returning -EBUSY instead of 0, but make the callers return 0 eventually.
As this isn't a critical fix, its not getting marked for stable kernel.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull x86 fix from Thomas Gleixner:
"Restore the retrigger callbacks in the IO APIC irq chips. That
addresses a long standing regression which got introduced with the
rewrite of the x86 irq subsystem two years ago and went unnoticed so
far"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ioapic: Restore IO-APIC irq_chip retrigger callback
Pull smp/hotplug fix from Thomas Gleixner:
"Remove an unused variable which is a leftover from the notifier
removal"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Remove unused but set variable in _cpu_down()
Random fixes and cleanups that accumulated over the time.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJYgTP0AAoJECgfDbjSjVRp0bUH/j2r8TRTPcqIWIixbSSxUtsU
Dp788EyizsPp8kenGPWT7xDQFtuFH2PwAqjvu6ZRa53hvo6Rt4Y8i2S/+lCNt/AN
tzVohWOjlpR6htc44BbJQzJZDHIT9zZKUeYSUBtES0isujBmsrhq7+0lBI3a3FdN
wmYK9LNTMLEo65ycmAulbvYN4iD/b7OqV4dieJCLaGyyrTTEHxfJzTK5f9dLZTz+
fhBofbwoOrdFQg+Ey88wU9xw+Ri31TE6vlwibHzArt46s/Dc7BCFhY7p1vD0uBl/
EIf17jcCB/mzOtmT8EfEhwC2vZYpxbSMaDDGOnSzhlnonkcNbUpII12Y7qEbNjk=
=xkS8
-----END PGP SIGNATURE-----
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio/vhost fixes from Michael Tsirkin:
"Random fixes and cleanups that accumulated over the time"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio/s390: virtio: constify virtio_config_ops structures
virtio/s390: add missing \n to end of dev_err message
virtio/s390: support READ_STATUS command for virtio-ccw
tools/virtio/ringtest: tweaks for s390
tools/virtio/ringtest: fix run-on-all.sh for offline cpus
virtio_console: fix a crash in config_work_handler
vhost/scsi: silence uninitialized variable warning
vhost: scsi: constify target_core_fabric_ops structures
Pull thermal management fixes from Zhang Rui:
- fix a regression that thermal zone dynamically allocated sysfs
attributes are freed before they're removed, which is introduced in
4.10-rc1 (Jacob von Chorus)
- fix a boot warning because deprecated hwmon API is used (Fabio
Estevam)
- a couple of fixes for rockchip thermal driver (Brian Norris, Caesar
Wang)
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: rockchip: fixes the conversion table
thermal: core: move tz->device.groups cleanup to thermal_release
thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()
thermal: rockchip: handle set_trips without the trip points
thermal: rockchip: optimize the conversion table
thermal: rockchip: fixes invalid temperature case
thermal: rockchip: don't pass table structs by value
thermal: rockchip: improve conversion error messages
Here are a few small USB fixes for 4.10-rc5.
Most of these are gadget/dwc2 fixes for reported issues, all of these
have been in linux-next for a while. The last one is a single xhci
WARN_ON removal to handle an issue that the dwc3 driver is hitting in
the 4.10-rc tree. The warning is harmless and needs to be removed, and
a "real" fix that is more complex will show up in 4.11-rc1 for this
device.
That last patch hasn't been in linux-next yet due to the weekend timing,
but it's a "simple" WARN_ON() removal so what could go wrong? :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWIMpoA8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ynMpgCbBihuNVTIFrDO3/10zMTiC0O71NsAoNnMBA6B
qwwmm9AuY8Ja+Ch384FD
=+nqh
-----END PGP SIGNATURE-----
Merge tag 'usb-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a few small USB fixes for 4.10-rc5.
Most of these are gadget/dwc2 fixes for reported issues, all of these
have been in linux-next for a while. The last one is a single xhci
WARN_ON removal to handle an issue that the dwc3 driver is hitting in
the 4.10-rc tree. The warning is harmless and needs to be removed, and
a "real" fix that is more complex will show up in 4.11-rc1 for this
device.
That last patch hasn't been in linux-next yet due to the weekend
timing, but it's a "simple" WARN_ON() removal so what could go wrong?
:)"
Famous last words.
* tag 'usb-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: remove WARN_ON if dma mask is not set for platform devices
usb: dwc2: host: fix Wmaybe-uninitialized warning
usb: dwc2: gadget: Fix GUSBCFG.USBTRDTIM value
usb: gadget: udc: atmel: remove memory leak
usb: dwc3: exynos fix axius clock error path to do cleanup
usb: dwc2: Avoid suspending if we're in gadget mode
usb: dwc2: use u32 for DT binding parameters
usb: gadget: f_fs: Fix iterations on endpoints.
usb: dwc2: gadget: Fix DMA memory freeing
usb: gadget: composite: Fix function used to free memory
Pull libnvdimm fixes from Dan Williams:
"Two fixes:
- a regression fix for the multiple-pmem-namespace-per-region support
added in 4.9. Even if an existing environment is not using that
feature the act of creating and a destroying a single namespace
with the ndctl utility will lead to the proliferation of extra
unwanted namespace devices.
- a fix for the error code returned from the pmem driver when the
memcpy_mcsafe() routine returns -EFAULT. Btrfs seems to be the only
block I/O consumer that tries to parse the meaning of the error
code when it is non-zero.
Neither of these fixes are critical, the namespace leak is awkward in
that it can cause device naming to change and complicates debugging
namespace initialization issues. The error code fix is included out of
caution for what other consumers might be expecting -EIO for block I/O
errors"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm, namespace: fix pmem namespace leak, delete when size set to zero
pmem: return EIO on read_pmem() failure
caused some of these clocks to turn off when they were always left
on before.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=0KLk
-----END PGP SIGNATURE-----
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fix from Stephen Boyd:
"One fix for Samsung Exynos524x SoCs where recent IOMMU patches have
caused some of these clocks to turn off when they were always left on
before"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk/samsung: exynos542x: mark some clocks as critical
- More intc updates [Yuriv]
- Fix module build when unwinder is turned off
- IO Coherency Programming model updates
- Other miscll
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=pU0g
-----END PGP SIGNATURE-----
Merge tag 'arc-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- more intc updates [Yuriv]
- fix module build when unwinder is turned off
- IO Coherency Programming model updates
- other miscellaneous
* tag 'arc-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: Revert "ARC: mm: IOC: Don't enable IOC by default"
ARC: mm: split arc_cache_init to allow __init reaping of bulk
ARCv2: IOC: Use actual memory size to setup aperture size
ARCv2: IOC: Adhere to progamming model guidelines to avoid DMA corruption
ARCv2: IOC: refactor the IOC and SLC operations into own functions
ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds
ARCv2: save r30 on kernel entry as gcc uses it for code-gen
ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP
ARC: IRQ: Use hwirq instead of virq in mask/unmask
ARC: mmu: clarify the MMUv3 programming model
Two fixes for fallout from the hugetlb changes we merged this cycle.
Ten other fixes, four only affect Power9, and the rest are a bit of a mixture
though nothing terrible.
Thanks to:
Aneesh Kumar K.V, Anton Blanchard, Benjamin Herrenschmidt, Dave Martin, Gavin
Shan, Madhavan Srinivasan, Nicholas Piggin, Reza Arbab.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=xOFu
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two fixes for fallout from the hugetlb changes we merged this cycle.
Ten other fixes, four only affect Power9, and the rest are a bit of a
mixture though nothing terrible.
Thanks to: Aneesh Kumar K.V, Anton Blanchard, Benjamin Herrenschmidt,
Dave Martin, Gavin Shan, Madhavan Srinivasan, Nicholas Piggin, Reza
Arbab"
* tag 'powerpc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Ignore reserved field in DCSR and PVR reads and writes
powerpc/ptrace: Preserve previous TM fprs/vsrs on short regset write
powerpc/ptrace: Preserve previous fprs/vsrs on short regset write
powerpc/perf: Use MSR to report privilege level on P9 DD1
selftest/powerpc: Wrong PMC initialized in pmc56_overflow test
powerpc/eeh: Enable IO path on permanent error
powerpc/perf: Fix PM_BRU_CMPL event code for power9
powerpc/mm: Fix little-endian 4K hugetlb
powerpc/mm/hugetlb: Don't panic when we don't find the default huge page size
powerpc: Fix pgtable pmd cache init
powerpc/icp-opal: Fix missing KVM case and harden replay
powerpc/mm: Fix memory hotplug BUG() on radix
ARM:
- Fix for timer setup on VHE machines
- Drop spurious warning when the timer races against the vcpu running
again
- Prevent a vgic deadlock when the initialization fails (for stable)
s390:
- Fix a kernel memory exposure (for stable)
x86:
- Fix exception injection when hypercall instruction cannot be patched
-----BEGIN PGP SIGNATURE-----
iQEcBAABCAAGBQJYglwIAAoJEED/6hsPKofoZp0H+gLLEeKP0Mu+olXiOWjB/KFp
WBDAR1872xIjvEcOl9l6AZgdmp2hk7KW1t+kJj5npgu237v6fHBO9ybqrAfhfU4l
PH23zOebL15HINcwCK6OcxOTiOtgae5Nui1cnLJBHDQgPTC/VmIE8NgV/qrMyo2r
Vth+K/cBLKiWG9JhyQvxmrfupNJUknLSH7CTnlO/fC8GEJzDfMpUl7B1Ui0TGK53
ExVgVLg3F28SErj9bUU8y4VJhMrwDAf2Kx2BNHqDbzXMzTdp0LrGRymFLl2/Gxez
zLtZDfGYYzEhPp1NuDydlxLb8ymnsQNB7K6Kau0w9JoAvOYwfUYfDt+GaTegwYM=
=dPtS
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- Fix for timer setup on VHE machines
- Drop spurious warning when the timer races against the vcpu running
again
- Prevent a vgic deadlock when the initialization fails (for stable)
s390:
- Fix a kernel memory exposure (for stable)
x86:
- Fix exception injection when hypercall instruction cannot be
patched"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: s390: do not expose random data via facility bitmap
KVM: x86: fix fixing of hypercalls
KVM: arm/arm64: vgic: Fix deadlock on error handling
KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems
KVM: arm/arm64: Fix occasional warning from the timer work function
Pull SCSI target fixes from Bart Van Assche:
- two small fixes for the ibmvscsis driver
- ten patches with bug fixes for the target mode of the qla2xxx driver
- four patches that avoid that the "sparse" and "smatch" static
analyzer tools report false positives for the qla2xxx code base
* 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux:
qla2xxx: Disable out-of-order processing by default in firmware
qla2xxx: Fix erroneous invalid handle message
qla2xxx: Reduce exess wait during chip reset
qla2xxx: Terminate exchange if corrupted
qla2xxx: Fix crash due to null pointer access
qla2xxx: Collect additional information to debug fw dump
qla2xxx: Reset reserved field in firmware options to 0
qla2xxx: Set tcm_qla2xxx version to automatically track qla2xxx version
qla2xxx: Include ATIO queue in firmware dump when in target mode
qla2xxx: Fix wrong IOCB type assumption
qla2xxx: Avoid that building with W=1 triggers complaints about set-but-not-used variables
qla2xxx: Move two arrays from header files to .c files
qla2xxx: Declare an array with file scope static
qla2xxx: Fix indentation
ibmvscsis: Fix sleeping in interrupt context
ibmvscsis: Fix max transfer length
Pull block fixes from Jens Axboe:
"Just two small fixes for this -rc.
One is just killing an unused variable from Keith, but the other
fixes a performance regression for nbd in this series, where we
inadvertently flipped when we set MSG_MORE when outputting data"
* 'for-linus' of git://git.kernel.dk/linux-block:
nbd: only set MSG_MORE when we have more to send
blk-mq: Remove unused variable
The usual small smattering of driver specific fixes. A few bits that
stand out here:
- The R-Car patches adding fallbacks are just adding new compatible
strings to the driver so that device trees are written in a more
robustly future proof fashion, this isn't strictly a fix but it's
just new IDs and it's better to get it into mainline sooner to
improve the ABI.
- The DesignWare "switch to new API part 2" patch is actually a
misleadingly titled fix for a bit that got missed in the original
conversion.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCAAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAliA0xcTHGJyb29uaWVA
a2VybmVsLm9yZwAKCRAk1otyXVSH0O/kB/9XpR63v5Ej1surlHLJdX7GEk1Oaoy9
CoCHcwBCPfAlLstkVARbvQegdEl3WKZ7FFhIRKhuiW62hVPV8otOv6chyX++zdWo
sYcLHESyuVDydvFdsoMZOvxP22tUNGom6Dhmsf2sXSbWwV/Q2yFahouhAeMPZJ+c
kiZ1OUqae6YIL8EIt0fIFiLp1m2vVpXPLYAYr24a6G4P7nrnLwdMfD2+NnbE9YG8
5zTkFrzh7d7izj3QqGGvW/zMPB7fvP+kY2MdDHx2/lEFjMB4qg/i6C+8bRZGRnWO
FE3Z++LDQZmKpKcPKZlV53yiX1anEpR3mpKGEGSon9zZlBRZhvYJGZtN
=EoLd
-----END PGP SIGNATURE-----
Merge tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"The usual small smattering of driver specific fixes. A few bits that
stand out here:
- the R-Car patches adding fallbacks are just adding new compatible
strings to the driver so that device trees are written in a more
robustly future proof fashion, this isn't strictly a fix but it's
just new IDs and it's better to get it into mainline sooner to
improve the ABI
- the DesignWare "switch to new API part 2" patch is actually a
misleadingly titled fix for a bit that got missed in the original
conversion"
* tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: davinci: use dma_mapping_error()
spi: spi-axi: Free resources on error path
spi: pxa2xx: add missed break
spi: dw-mid: switch to new dmaengine_terminate_* API (part 2)
spi: dw: Make debugfs name unique between instances
spi: sh-msiof: Do not use C++ style comment
spi: armada-3700: Set mode bits correctly
spi: armada-3700: fix unsigned compare than zero on irq
spi: sh-msiof: Add R-Car Gen 2 and 3 fallback bindings
spi: SPI_FSL_DSPI should depend on HAS_DMA
marked for stable) and two fixups for this merge window's patches.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAABCAAGBQJYghs8AAoJEEp/3jgCEfOLOz0IAI/xNUMO121S57GEhzkKDdWC
5PCHjg9itU+2eMCCZ2Nyuikj2NVwEFh9HLpMz5jtFa3oWCIhljh9wT8zlKDgpn5R
Q1GCT4LkHGhV+HA2sM04aynKBmC90ZVAHfDt/BTs5mLzW7neSpxFOQEPdS4FG6Zg
NxUGcI/GhqmfpcLnm5IqXxI1cc0bXf6BmEzlGrPAkvzJBhHXWKCVpr1Q/nBW96Q5
ko1EpP16wZoeRvsr1ztXmBTNURUrCi7S6PyK4M5MAro381U3a7zwQuFq9uuREahO
nJtCjWD3bd6U3ENDe/Gacz3czXQyjOjE2/w42jL1dA84UMQbz+wv1SyNCkQgiyI=
=1LTx
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-4.10-rc5' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Three filesystem endianness fixes (one goes back to the 2.6 era, all
marked for stable) and two fixups for this merge window's patches"
* tag 'ceph-for-4.10-rc5' of git://github.com/ceph/ceph-client:
ceph: fix bad endianness handling in parse_reply_info_extra
ceph: fix endianness bug in frag_tree_split_cmp
ceph: fix endianness of getattr mask in ceph_d_revalidate
libceph: make sure ceph_aes_crypt() IV is aligned
ceph: fix ceph_get_caps() interruption
Pull overlayfs fix from Miklos Szeredi:
"This fixes a regression introduced in this cycle"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix possible use after free on redirect dir lookup
Pull fuse fixes from Miklos Szeredi:
"Fix two regressions, one introduced in 4.9 and a less recent one in
4.2"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix time_to_jiffies nsec sanity check
fuse: clear FR_PENDING flag when moving requests out of pending queue
This is a set of 12 fixes including the mpt3sas one that was causing
hangs on ATA passthrough. The others are a couple of zoned block
device fixes, a SAS device detection bug which lead to SATA drives not
being matched to bays, two qla2xxx MSI fixes, a qla2xxx req for rsp
confusion caused by cut and paste, and a few other minor fixes.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=8y3/
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of 12 fixes including the mpt3sas one that was causing
hangs on ATA passthrough.
The others are a couple of zoned block device fixes, a SAS device
detection bug which lead to SATA drives not being matched to bays, two
qla2xxx MSI fixes, a qla2xxx req for rsp confusion caused by cut and
paste, and a few other minor fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: mpt3sas: fix hang on ata passthrough commands
scsi: lpfc: Set elsiocb contexts to NULL after freeing it
scsi: sd: Ignore zoned field for host-managed devices
scsi: sd: Fix wrong DPOFUA disable in sd_read_cache_type
scsi: bfa: fix wrongly initialized variable in bfad_im_bsg_els_ct_request()
scsi: ses: Fix SAS device detection in enclosure
scsi: libfc: Fix variable name in fc_set_wwpn
scsi: lpfc: avoid double free of resource identifiers
scsi: qla2xxx: remove irq_affinity_notifier
scsi: qla2xxx: fix MSI-X vector affinity
scsi: qla2xxx: Fix apparent cut-n-paste error.
scsi: qla2xxx: Get mutex lock before checking optrom_state
uninitialised variables
- SWIOTLB DMA API fall-back allocation fix when the SWIOTLB buffer is
not initialised (all RAM is suitable for 32-bit DMA masks)
- Fix the bad_mode function returning for unhandled exceptions coming
from user space
- Fix name clash in __page_to_voff()
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=IArX
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- avoid potential stack information leak via the ptrace ABI caused by
uninitialised variables
- SWIOTLB DMA API fall-back allocation fix when the SWIOTLB buffer is
not initialised (all RAM is suitable for 32-bit DMA masks)
- fix the bad_mode function returning for unhandled exceptions coming
from user space
- fix name clash in __page_to_voff()
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: avoid returning from bad_mode
arm64/ptrace: Reject attempts to set incomplete hardware breakpoint fields
arm64/ptrace: Avoid uninitialised struct padding in fpr_set()
arm64/ptrace: Preserve previous registers for short regset write
arm64/ptrace: Preserve previous registers for short regset write
arm64/ptrace: Preserve previous registers for short regset write
arm64: mm: avoid name clash in __page_to_voff()
arm64: Fix swiotlb fallback allocation
kvm_s390_get_machine() populates the facility bitmap by copying bytes
from the host results that are stored in a 256 byte array in the prefix
page. The KVM code does use the size of the target buffer (2k), thus
copying and exposing unrelated kernel memory (mostly machine check
related logout data).
Let's use the size of the source buffer instead. This is ok, as the
target buffer will always be greater or equal than the source buffer as
the KVM internal buffers (and thus S390_ARCH_FAC_LIST_SIZE_BYTE) cover
the maximum possible size that is allowed by STFLE, which is 256
doublewords. All structures are zero allocated so we can leave bytes
256-2047 unchanged.
Add a similar fix for kvm_arch_init_vm().
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
[found with smatch]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: stable@vger.kernel.org
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
The warn on is a bit too much, we will anyway set the dma mask if not set
previously.
The main reason for this fix is that 4.10-rc1 has a dwc3 change that
pass a parent sysdev dev pointer instead of setting the dma mask of
its xhci platform device. xhci platform driver can then get more
attributes from the sysdev than just the dma mask.
The usb core and xhci changes are not yet in 4.10, and a fix like
this was preferred instead of taking those big changes this late in
the rc-cycle.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
IBM bit 31 (for the rest of us - bit 0) is a reserved field in the
instruction definition of mtspr and mfspr. Hardware is encouraged to
(and does) ignore it.
As a result, if userspace executes an mtspr DSCR with the reserved bit
set, we get a DSCR facility unavailable exception. The kernel fails to
match against the expected value/mask, and we silently return to
userspace to try and re-execute the same mtspr DSCR instruction. We
loop forever until the process is killed.
We should do something here, and it seems mirroring what hardware does
is the better option vs killing the process. While here, relax the
matching of mfspr PVR too.
Cc: stable@vger.kernel.org
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET
to fill all the check pointed registers, the thread's old check pointed
registers are preserved.
Fixes: 9d3918f7c0 ("powerpc/ptrace: Enable support for NT_PPC_CVSX")
Fixes: 19cbcbf75a ("powerpc/ptrace: Enable support for NT_PPC_CFPR")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Ensure that if userspace supplies insufficient data to PTRACE_SETREGSET
to fill all the registers, the thread's old registers are preserved.
Fixes: c6e6771b87 ("powerpc: Introduce VSX thread_struct and CONFIG_VSX")
Cc: stable@vger.kernel.org # v2.6.27+
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
We've been sitting on fixes for a while, and they keep trickling in at a low
rate. Nothing in here comes across as particularly scary or noteworthy, for
the most part it's a large collection of small DT tweaks.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=cc1U
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"We've been sitting on fixes for a while, and they keep trickling in at
a low rate. Nothing in here comes across as particularly scary or
noteworthy, for the most part it's a large collection of small DT
tweaks"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (24 commits)
ARM: dts: da850-evm: fix read access to SPI flash
ARM: dts: omap3: Fix Card Detect and Write Protect on Logic PD SOM-LV
ARM64: dts: meson-gxbb-odroidc2: Disable SCPI DVFS
ARM: dts: OMAP5 / DRA7: indicate that SATA port 0 is available.
ARM: dts: NSP: Fix DT ranges error
ARM: multi_v7_defconfig: set bcm47xx watchdog
ARM: multi_v7_defconfig: fix config typo
ARM: dts: dra72-evm-revc: fix typo in ethernet-phy node
soc: ti: wkup_m3_ipc: Fix error return code in wkup_m3_ipc_probe()
ARM: ux500: fix prcmu_is_cpu_in_wfi() calculation
ARM: dts: sunxi: Change node name for pwrseq pin on Olinuxino-lime2-emmc
ARM: dts: sun8i: Support DTB build for NanoPi M1
ARM: dts: sun6i: hummingbird: Enable display engine again
ARM: dts: sun6i: Disable display pipeline by default
ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus" part 3
ARM: dts: imx6qdl-nitrogen6_som2: fix sgtl5000 pinctrl init
ARM: dts: imx6qdl-nitrogen6_max: fix sgtl5000 pinctrl init
ARM: OMAP1: DMA: Correct the number of logical channels
ARM: dts: am335x-icev2: Remove the duplicated pinmux setting
ARM: OMAP2+: Fix WL1283 Bluetooth Baud Rate
...
- Inode i_mode sanitization
- Prevent overflows in getnextquota
- Minor build fixes
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=4Mxu
-----END PGP SIGNATURE-----
Merge tag 'xfs-for-linux-4.10-rc5-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"I have a few more patches this week -- one to make the behavior of a
quota id ioctl consistent with the other filesystems, and the rest
improve validation of i_mode & i_size values coming into xfs so that
we don't read off the ends of arrays or crash when handed garbage disk
data.
Summary:
- inode i_mode sanitization
- prevent overflows in getnextquota
- minor build fixes"
* tag 'xfs-for-linux-4.10-rc5-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix xfs_mode_to_ftype() prototype
xfs: don't wrap ID in xfs_dq_get_next_id
xfs: sanity check inode di_mode
xfs: sanity check inode mode when creating new dentry
xfs: replace xfs_mode_to_ftype table with switch statement
xfs: add missing include dependencies to xfs_dir2.h
xfs: sanity check directory inode di_size
xfs: make the ASSERT() condition likely
Read access to the SPI flash are broken on da850-evm, i.e. the data
read is not what is actually programmed on the flash.
According to the datasheet for the M25P64 part present on the da850-evm,
if the SPI frequency is higher than 20MHz then the READ command is not
usable anymore and only the FAST_READ command can be used to read data.
This commit specifies in the DTS that we should use FAST_READ command
instead of the READ command.
Cc: stable@vger.kernel.org
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Fabien Parent <fparent@baylibre.com>
[nsekhar@ti.com: subject line adjustment]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Declare virtio_config_ops structure as const as it is only stored in the
config field of a virtio_device structure. This field is of type const, so
virtio_config_ops structures having this property can be declared const.
Done using Coccinelle:
@r1 disable optional_qualifier@
identifier i;
position p;
@@
static struct virtio_config_ops i@p={...};
@ok1@
identifier r1.i;
position p;
struct virtio_ccw_device x;
@@
x.vdev.config=&i@p
@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p
@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct virtio_config_ops i;
File size before and after applying the patch remains the same.
text data bss dec hex filename
9235 296 32928 42459 a5db drivers/s390/virtio/virtio_ccw.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Message-Id: <1484333336-13443-1-git-send-email-bhumirks@gmail.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Trival fix, dev_err message is missing a \n, so add it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Message-Id: <20160927200844.16008-1-colin.king@canonical.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
As virtio-1 introduced the possibility of the device manipulating the
status byte, revision 2 of the virtio-ccw transport introduced a means
of getting the status byte from the device via READ_STATUS. Let's wire
it up for revisions >= 2 and fall back to returning the stored status
byte if not supported.
Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Make ringtest work on s390 too.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Acked-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Since ef1b144d ("tools/virtio/ringtest: fix run-on-all.sh to work
without /dev/cpu") run-on-all.sh uses seq 0 $HOST_AFFINITY as the list
of ids of the CPUs to run the command on (assuming ids of online CPUs
are consecutive and start from 0), where $HOST_AFFINITY is the highest
CPU id in the system previously determined using lscpu. This can fail
on systems with offline CPUs.
Instead let's use lscpu to determine the list of online CPUs.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Fixes: ef1b144d ("tools/virtio/ringtest: fix run-on-all.sh to work without
/dev/cpu")
Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Using control_work instead of config_work as the 3rd argument to
container_of results in an invalid portdev pointer. Indeed, the work
structure is initialized as below:
INIT_WORK(&portdev->config_work, &config_work_handler);
It leads to a crash when portdev->vdev is dereferenced later. This
bug
is triggered when the guest uses a virtio-console without multiport
feature and receives a config_changed virtio interrupt.
Signed-off-by: G. Campana <gcampana@quarkslab.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This is to silence an uninitialized variable warning in debug output.
The problem is this line:
pr_debug("vhost_get_vq_desc: head: %d, out: %u in: %u\n",
head, out, in);
If "head == vq->num" is true on the first iteration then "out" and "in"
aren't initialized. We handle that a few lines after the printk. I was
tempted to just delete the pr_debug() but I decided to just initialize
them to zero instead.
Also checkpatch.pl complains if variables are declared as just
"unsigned" without the "int".
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>