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Report charging type based on recently read state.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Edge interrupts from the charger may be lost or stuck in fault mode
since probe(). Check if something changed everytime userspace wants
some data.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Datasheet describes two modes for reading ADC measurements:
1. continuous, 1 Hz - enabled and started by CONV_RATE bit
2. one-shot - triggered by CONV_START bit
In continuous mode, CONV_START is read-only and signifies an ongoing
conversion.
Change the code to follow the datasheet and really disable continuous
mode for power saving.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Charge Current is more apropriately reflected by CURRENT_NOW property
(measured current) than CONSTANT_CURRENT_VOLTAGE (configured CC-phase
current limit). Fix the reference and make the sign reflect direction
of the current.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
According to the datasheet available at (1), the bottom four
bits are always zero and the actual voltage is 1.25x this value
in mV. Since the kernel API specifies that voltages should be in
uV, it should report 1250x the shifted value.
1) https://datasheets.maximintegrated.com/en/ds/MAX17040-MAX17041.pdf
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The framework is unhappy about them, because it uses the names in sysfs
attributes:
power_supply olpc-ac: hwmon: 'olpc-ac' is not a valid name attribute, please fix
power_supply olpc-battery: hwmon: 'olpc-battery' is not a valid name attribute, please fix
See also commit 648cd48c9e56 ("hwmon: Do not accept invalid name
attributes") and commit 74d3b6419772 ("hwmon: Relax name attribute
validation for new APIs").
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This delay-fix is picked up from downstream driver,
we measured that 25 - 35 ms delay ensure that we get required data.
Tested on SMB347 on Nexus 7 2012. Otherwise IRQSTAT_E fails to provide
correct information.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fix failure when USB cable is connected:
smb347 2-006a: reading IRQSTAT_D failed
Fixes: 1502cfe19bac ("smb347-charger: Fix battery status reporting logic for charger faults")
Tested-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The "default n" is not needed as it is, well, default. Clean
the KConfig by removing "default n".
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Indent the help text as explained in
Documentation/process/coding-style.rst
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The ROHM BD99954 is a Battery Management LSI for 1-4 cell Lithium-Ion
secondary battery intended to be used in space-constraint equipment such
as Low profile Notebook PC, Tablets and other applications. BD99954
provides a Dual-source Battery Charger, two port BC1.2 detection and a
Battery Monitor.
Support ROHM BD99954 Charger IC.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The ROHM BD99954 is a Battery Management LSI for 1-4 cell Lithium-Ion
secondary battery. Intended to be used in space-constraint equipment such
as Low profile Notebook PC, Tablets and other applications. BD99954
provides a Dual-source Battery Charger, two port BC1.2 detection and a
Battery Monitor.
Document the DT bindings for BD99954
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add:
- trickle-charge-current-microamp:
Some chargers have 3 charging stages. First one when battery is almost
empty is often called as trickle-charge. Last state when battery has been
"woken up" is usually called as fast-charge. In addition to this some
chargers have a 'middle state' which ROHM BD99954 data-sheet describes as
pre-charge. Some batteries can benefit from this 3-phase charging
[citation needed].
Introduce trickle-charge-current-microamp so that batteries can give
charging current limit for all three states.
- precharge-upper-limit-microvolt:
When battery voltage has reached certain limit we change from
trickle-charge to next charging state (pre-charge for BD99954). Allow
battery to specify this limit.
- re-charge-voltage-microvolt:
Allow giving a battery specific voltage limit for chargers which can
automatically re-start charging when battery has discharghed down to
this limit.
- over-voltage-threshold-microvolt
Allow specifying voltage threshold after which the battery is assumed to
be faulty.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Change the bd70528 to use common linear_range code instead of
implementing a copy of it in this driver.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Series extracts a "linear ranges" helper out of the regulator
framework. Linear ranges helper is intended to help converting
real-world values to register values when conversion is linear. I
suspect this is useful also for power subsystem and possibly for clk.
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Merge tag 'tags/linear-ranges-lib' into psy-next
lib: Add linear ranges helper library and start using it
Series extracts a "linear ranges" helper out of the regulator
framework. Linear ranges helper is intended to help converting
real-world values to register values when conversion is linear. I
suspect this is useful also for power subsystem and possibly for clk.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fix gcc '-Wunused-but-set-variable' warning:
drivers/power/reset/ltc2952-poweroff.c:97:16: warning: variable
‘overruns’ set but not used [-Wunused-but-set-variable]
unsigned long overruns;
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Hongbo Yao <yaohongbo@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
In the probe function, in case of error, resources allocated in
'lp8788_setup_adc_channel()' must be released.
This can be achieved easily by using the devm_ variant of
'iio_channel_get()'.
This has the extra benefit to simplify the remove function and to axe the
'lp8788_release_adc_channel()' function which is now useless.
Fixes: 98a276649358 ("power_supply: Add new lp8788 charger driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Modern device tree bindings are supposed to be created as YAML-files
in accordance with dt-schema. This commit replaces SYSCON reboot-mode
legacy bare text bindings with YAML file. As before the bindings file
states that the corresponding dts node is supposed to be compatible
"syscon-reboot-mode" device and necessarily have an offset property
to determine which register from the regmap is supposed to keep the
mode on reboot.
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fix the following warning:
drivers/power/supply/cw2015_battery.c:96:5: warning:
'cw_update_profile' was not declared. Should it be static?
drivers/power/supply/cw2015_battery.c:712:1: warning:
'cw_bat_pm_ops' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: ChenTao <chentao107@huawei.com>
Acked-by: Tobias Schramm <t.schramm@manjaro.org>
Tested-by: Tobias Schramm <t.schramm@manjaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
We introduced some new locking here, but need to update the error
paths so they unlock before returning.
Fixes: 72d9cd9cdc18 ("power: bq25890: protect view of the chip's state")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Change the regulator helpers to use common linear_ranges code.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/64f01d5e381b8631a271616b7790f9d5640974fb.1588944082.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Many devices have control registers which control some measurable
property. Often a register contains control field so that change in
this field causes linear change in the controlled property. It is not
a rare case that user wants to give 'meaningful' control values and
driver needs to convert them to register field values. Even more
often user wants to 'see' the currently set value - again in
meaningful units - and driver needs to convert the values it reads
from register to these meaningful units. Examples of this include:
- regulators, voltage/current configurations
- power, voltage/current configurations
- clk(?) NCOs
and maybe others I can't think of right now.
Provide a linear_range helper which can do conversion from user value
to register value 'selector'.
The idea here is stolen from regulator framework and patches refactoring
the regulator helpers to use this are following.
Current implementation does not support inversely proportional ranges
but it might be useful if we could support also inversely proportional
ranges?
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/59259bc475e0c800eb4bb163f02528c7c01f7b3a.1588944082.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add POWER_SUPPLY_TYPE to the uevent env for power supply. Type is a
property of all power supplies and there is a sysfs entry for it but it
is not included in the properties array of the power supply so
explicitly add it to the udev env.
Signed-off-by: Mathew King <mathewk@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reduce the number of touch points to add a new enum property to the
power_supply class by mapping the array of text values to the device
attribute descriptor. A new enum property can now added by creating an
array with the text values named POWER_SUPPLY_${PROPNAME}_TEXT and
adding POWER_SUPPLY_ENUM_ATTR(${PROPNAME}) to the power_supply_attrs
array.
Signed-off-by: Mathew King <mathewk@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Use designated initializers for the sysfs power supply text values. This
will help ensure that the text values are kept in sync with the enum
values from power_supply.h.
Signed-off-by: Mathew King <mathewk@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Make the device attribute list used to create sysfs attributes more
robust by decoupling the list order from order of the enum defined in
power_supply.h. This is done by using a designated initializer in the
POWER_SUPPLY_ATTR macro.
Signed-off-by: Mathew King <mathewk@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Extend bq->lock over whole updating of the chip's state. Might get
useful later for switching ADC modes correctly.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
regmap initialization will check I2C adapter functionality.
Remove redundant check in the driver.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Property list should not change, so mark it const.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Driver rejects unknown chips early in the probe(), so when
bq25890_power_supply_get_property() is made reachable, bq->chip_version
will already be set to correct value - there is no need to check
it again.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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Merge tag 'for-5.7-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull more btrfs fixes from David Sterba:
"A few more stability fixes, minor build warning fixes and git url
fixup:
- fix partial loss of prealloc extent past i_size after fsync
- fix potential deadlock due to wrong transaction handle passing via
journal_info
- fix gcc 4.8 struct intialization warning
- update git URL in MAINTAINERS entry"
* tag 'for-5.7-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
MAINTAINERS: btrfs: fix git repo URL
btrfs: fix gcc-4.8 build warning for struct initializer
btrfs: transaction: Avoid deadlock due to bad initialization timing of fs_info::journal_info
btrfs: fix partial loss of prealloc extent past i_size after fsync
Including:
- Fix for a memory leak when dev_iommu gets freed and a
sub-pointer does not.
- Build dependency fixes for Mediatek, spapr_tce, and
Intel IOMMU driver.
- Export iommu_group_get_for_dev() only for GPLed modules
- Fix for AMD IOMMU interrupt remapping when x2apic is
enabled
- Fix for error path in the QCOM IOMMU driver probe function
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Merge tag 'iommu-fixes-v5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
- Fix a memory leak when dev_iommu gets freed and a sub-pointer does
not
- Build dependency fixes for Mediatek, spapr_tce, and Intel IOMMU
driver
- Export iommu_group_get_for_dev() only for GPLed modules
- Fix AMD IOMMU interrupt remapping when x2apic is enabled
- Fix error path in the QCOM IOMMU driver probe function
* tag 'iommu-fixes-v5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/qcom: Fix local_base status check
iommu: Properly export iommu_group_get_for_dev()
iommu/vt-d: Use right Kconfig option name
iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system
iommu: spapr_tce: Disable compile testing to fix build on book3s_32 config
iommu/mediatek: Fix MTK_IOMMU dependencies
iommu: Fix the memory leak in dev_iommu_free()
The git repo listed for btrfs hasn't been updated in over a year.
List the current one instead.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This patch adds a driver for the CellWise cw2015 fuel gauge.
The CellWise cw2015 is a shuntless, single-cell Li-Ion fuel gauge used
in the pine64 Pinebook Pro laptop and some Raspberry Pi UPS HATs.
Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This patch adds the dts binding schema for the cw2015 fuel gauge.
Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
In function power_supply_add_hwmon_sysfs(), psyhw->props is
allocated by bitmap_zalloc(). But this pointer is not deallocated
when devm_add_action fail, which lead to a memory leak bug. To fix
this, we replace devm_add_action with devm_add_action_or_reset.
Cc: stable@kernel.org
Fixes: e67d4dfc9ff19 ("power: supply: Add HWMON compatibility layer")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Prevent the intel_pstate driver from printing excessive diagnostic
messages in some cases (Chris Wilson), make the hibernation restore
kernel freeze kernel threads as well as user space tasks (Dexuan Cui)
and fix the ACPI device PM disagnostic messages to include the correct
power state name (Kai-Heng Feng).
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Merge tag 'pm-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
- prevent the intel_pstate driver from printing excessive diagnostic
messages in some cases (Chris Wilson)
- make the hibernation restore kernel freeze kernel threads as well as
user space tasks (Dexuan Cui)
- fix the ACPI device PM disagnostic messages to include the correct
power state name (Kai-Heng Feng).
* tag 'pm-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: ACPI: Output correct message on target power state
PM: hibernate: Freeze kernel threads in software_resume()
cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once
- Move the FIBMAP range check and warning out of the backend iomap
implementation and into the frontend ioctl_fibmap so that the checking
is consistent for all implementations.
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Merge tag 'iomap-5.7-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap fix from Darrick Wong:
"Hoist the check for an unrepresentable FIBMAP return value into
ioctl_fibmap.
The internal kernel function can handle 64-bit values (and is needed
to fix a regression on ext4 + jbd2). It is only the userspace ioctl
that is so old that it cannot deal"
* tag 'iomap-5.7-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
fibmap: Warn and return an error in case of block > INT_MAX
Highlights include:
Stable fixes
- fix handling of backchannel binding in BIND_CONN_TO_SESSION
Bugfixes
- Fix a credential use-after-free issue in pnfs_roc()
- Fix potential posix_acl refcnt leak in nfs3_set_acl
- defer slow parts of rpc_free_client() to a workqueue
- Fix an Oopsable race in __nfs_list_for_each_server()
- Fix trace point use-after-free race
- Regression: the RDMA client no longer responds to server disconnect requests
- Fix return values of xdr_stream_encode_item_{present, absent}
- _pnfs_return_layout() must always wait for layoutreturn completion
Cleanups
- Remove unreachable error conditions
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Merge tag 'nfs-for-5.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Stable fixes:
- fix handling of backchannel binding in BIND_CONN_TO_SESSION
Bugfixes:
- Fix a credential use-after-free issue in pnfs_roc()
- Fix potential posix_acl refcnt leak in nfs3_set_acl
- defer slow parts of rpc_free_client() to a workqueue
- Fix an Oopsable race in __nfs_list_for_each_server()
- Fix trace point use-after-free race
- Regression: the RDMA client no longer responds to server disconnect
requests
- Fix return values of xdr_stream_encode_item_{present, absent}
- _pnfs_return_layout() must always wait for layoutreturn completion
Cleanups:
- Remove unreachable error conditions"
* tag 'nfs-for-5.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS: Fix a race in __nfs_list_for_each_server()
NFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION
SUNRPC: defer slow parts of rpc_free_client() to a workqueue.
NFSv4: Remove unreachable error condition due to rpc_run_task()
SUNRPC: Remove unreachable error condition
xprtrdma: Fix use of xdr_stream_encode_item_{present, absent}
xprtrdma: Fix trace point use-after-free race
xprtrdma: Restore wake-up-all to rpcrdma_cm_event_handler()
nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl
NFS/pnfs: Fix a credential use-after-free issue in pnfs_roc()
NFS/pnfs: Ensure that _pnfs_return_layout() waits for layoutreturn completion
Core:
- Documentation typo fixes
- fix the channel indexes
- Dmatest: fixes for process hang and iterations
Drivers:
- hisilicon: build error fix without PCI_MSI
- ti-k3: deadlock fix
- uniphier-xdmac: fix for reg region
- pch: fix data race
- tegra: fix clock state
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Merge tag 'dmaengine-fix-5.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"Core:
- Documentation typo fixes
- fix the channel indexes
- dmatest: fixes for process hang and iterations
Drivers:
- hisilicon: build error fix without PCI_MSI
- ti-k3: deadlock fix
- uniphier-xdmac: fix for reg region
- pch: fix data race
- tegra: fix clock state"
* tag 'dmaengine-fix-5.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: dmatest: Fix process hang when reading 'wait' parameter
dmaengine: dmatest: Fix iteration non-stop logic
dmaengine: tegra-apb: Ensure that clock is enabled during of DMA synchronization
dmaengine: fix channel index enumeration
dmaengine: mmp_tdma: Reset channel error on release
dmaengine: mmp_tdma: Do not ignore slave config validation errors
dmaengine: pch_dma.c: Avoid data race between probe and irq handler
dt-bindings: dma: uniphier-xdmac: switch to single reg region
include/linux/dmaengine: Typos fixes in API documentation
dmaengine: xilinx_dma: Add missing check for empty list
dmaengine: ti: k3-psil: fix deadlock on error path
dmaengine: hisilicon: Fix build error without PCI_MSI
Convert the power_supply.txt to power-supply.yaml.
This conversion entailed fixing up the binding to being yaml and dt
checker compliant.
Added a note in the power_supply.txt to reference the power-supply.yaml
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
- copy_*_user validity check for new vfio_dma_rw interface (Yan Zhao)
- Fix a potential math overflow (Yan Zhao)
- Use follow_pfn() for calculating PFNMAPs (Sean Christopherson)
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Merge tag 'vfio-v5.7-rc4' of git://github.com/awilliam/linux-vfio
Pull VFIO fixes from Alex Williamson:
- copy_*_user validity check for new vfio_dma_rw interface (Yan Zhao)
- Fix a potential math overflow (Yan Zhao)
- Use follow_pfn() for calculating PFNMAPs (Sean Christopherson)
* tag 'vfio-v5.7-rc4' of git://github.com/awilliam/linux-vfio:
vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn()
vfio: avoid possible overflow in vfio_iommu_type1_pin_pages
vfio: checking of validity of user vaddr in vfio_dma_rw
