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I would like to stop exporting OF-specific devm_gpiod_get_from_of_node()
so that gpiolib can be cleaned a bit, so let's switch to the generic
fwnode property API.
While at it switch the rest of the calls to read properties in
bd957x_probe() to the generic device property API as well.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/20220903-gpiod_get_from_of_node-remove-v1-9-b29adfb27a6c@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
I would like to stop exporting OF-specific devm_gpiod_get_from_of_node()
so that gpiolib can be cleaned a bit, so let's switch to the generic
fwnode property API.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/20220903-gpiod_get_from_of_node-remove-v1-8-b29adfb27a6c@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
In "regulator: core: Resolve supply name earlier to prevent
double-init", we introduced a bug that prevented the regulator names
from registering properly with sysfs.
Reorder regulator_register such that supply names are properly resolved
and registered.
Fixes: 8a866d527ac0 ("regulator: core: Resolve supply name earlier to prevent double-init")
Link: https://lore.kernel.org/all/58b92e75-f373-dae7-7031-8abd465bb874@samsung.com/
Signed-off-by: Christian Kohlschütter <christian@kohlschutter.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20220829165543.24856-1-christian@kohlschutter.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Apparently the device trees of some boards have the property
"regulator-allow-set-load" for some of their regulators but then they
don't specify anything for "regulator-allowed-modes". That's not
really legit, but...
...before commit efb0cb50c427 ("regulator: qcom-rpmh: Implement
get_optimum_mode(), not set_load()") they used to get away with it, at
least on boards using RPMH regulators. That's because when a regulator
driver implements set_load() then the core doesn't look at
"regulator-allowed-modes" when trying to automatically adjust things
in response to the regulator's load. The core doesn't know what mode
we'll end up in, so how could it validate it?
Said another way: before commit efb0cb50c427 ("regulator: qcom-rpmh:
Implement get_optimum_mode(), not set_load()") some boards _were_
having the regulator mode adjusted despite listing no allowed
modes. After commit efb0cb50c427 ("regulator: qcom-rpmh: Implement
get_optimum_mode(), not set_load()") these same boards were now
getting an error returned when trying to use their regulators, since
simply enabling a regulator tries to update its load and that was
failing.
We don't really want to go back to the behavior from before commit
efb0cb50c427 ("regulator: qcom-rpmh: Implement get_optimum_mode(), not
set_load()"). Boards shouldn't have been changing modes if no allowed
modes were listed. However, the behavior after commit efb0cb50c427
("regulator: qcom-rpmh: Implement get_optimum_mode(), not set_load()")
isn't the best because now boards can't even turn their regulators on.
Let's choose to detect this case and return "no error" from
drms_uA_update(). The net-result will be _different_ behavior than we
had before commit efb0cb50c427 ("regulator: qcom-rpmh: Implement
get_optimum_mode(), not set_load()"), but this new behavior seems more
correct. If a board truly needed the mode switched then its device
tree should be updated to list the allowed modes.
Reported-by: Andrew Halaney <ahalaney@redhat.com>
Fixes: efb0cb50c427 ("regulator: qcom-rpmh: Implement get_optimum_mode(), not set_load()")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20220824142229.RFT.v2.2.I6f77860e5cd98bf5c67208fa9edda4a08847c304@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>
The get_optimum_mode() for regulator drivers is passed the input
voltage and output voltage as well as the current. This is because, in
theory, the optimum mode can depend on all three things.
It turns out that for all regulator drivers in mainline only the
current is looked at when implementing get_optimum_mode(). None of the
drivers take the input or output voltage into account. Despite the
fact that none of the drivers take the input or output voltage into
account, though, the regulator framework will error out before calling
into get_optimum_mode() if it doesn't know the input or output
voltage.
The above behavior turned out to be a probelm for some boards when we
landed commit efb0cb50c427 ("regulator: qcom-rpmh: Implement
get_optimum_mode(), not set_load()"). Before that change we'd have no
problems running drms_uA_update() for RPMH regulators even if a
regulator's input or output voltage was unknown. After that change
drms_uA_update() started to fail. This is because typically boards
using RPMH regulators don't model the input supplies of RPMH
regulators. Input supplies for RPMH regulators nearly always come from
the output of other RPMH regulators (or always-on regulators) and RPMH
firmware is initialized with this knowledge and handles enabling (and
adjusting the voltage of) input supplies. While we could model the
parent/child relationship of the regulators in Linux, many boards
don't bother since it adds extra overhead.
Let's change the regulator core to make things work again. Now if we
fail to get the input or output voltage we'll still call into
get_optimum_mode() and we'll just pass error codes in for input_uV
and/or output_uV parameters.
Since no existing regulator drivers even look at input_uV and
output_uV we don't need to add this error handling anywhere right
now. We'll add some comments in the core so that it's obvious that (if
regulator drivers care) it's up to them to add the checks.
Reported-by: Andrew Halaney <ahalaney@redhat.com>
Fixes: efb0cb50c427 ("regulator: qcom-rpmh: Implement get_optimum_mode(), not set_load()")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20220824142229.RFT.v2.1.I137e6bef4f6d517be7b081be926059321102fd3d@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>
Return the value from regmap_write() directly instead of storing it
in another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/20220824074707.221159-1-ye.xingchen@zte.com.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Iskren Chernev <iskren.chernev@gmail.com>:
This patch series adds SPMI and SMD regulator support for the PM6125 found on
SM4250/SM6115 SoCs from QCom.
This code has been tested on:
* OnePlus Nord N100 (oneplus,billie2, SoC sm4250)
* Redmi 9T (redmi,lemon, SoC sm6115)
The main source used for this change is qpnp pm6125 support patch from caf [1]:
[1]: https://source.codeaurora.org/quic/la/kernel/msm-5.4/commit/?h=kernel.lnx.5.4.r1-rel&id=d1220daeffaa440ffff0a8c47322eb0033bf54f5
v3: https://lkml.org/lkml/2022/7/31/303
v2: https://lkml.org/lkml/2022/7/26/885
v1: https://lkml.org/lkml/2021/8/28/144
Changes from v3:
- fix compilation issue reported by kernel test robot
- reorder HFSMPS/LDO+FTSMPS patches
- add new slew-rate computation for HFSMPS
- add proper pull-down support for new regs
- name new regs/vals after HFSMPS instead of FTSMPS
- address indentation/newline issues reported by Krzysztof
- improve commit messages on SPMI/RPM related patches
Changes from v2:
- split spmi new regulator support in 2 patches
- FTS and LDOs now have set_load and set_pull_down ops
- add better commit messages on spmi patches
- fix sob header order
- fix tested device info (Redmi 9T, NOT Xiaomi 9T)
- improve formatting in spmi binding docs
- sort alphabetically in smd binding docs
- sort alphabetically spmi pmics
- sort alphabetically smd pmics
Changes from v1:
- add dt-bindings
- split SPMI patch into new reg types and the new PMIC
- add correct supply mapping
Iskren Chernev (13):
dt-bindings: regulator: qcom_spmi: Improve formatting of if-then
blocks
dt-bindings: regulator: qcom_spmi: Document PM6125 PMIC
dt-bindings: regulator: qcom_smd: Sort compatibles alphabetically
dt-bindings: regulator: qcom_smd: Document PM6125 PMIC
regulator: qcom_spmi: Add support for HFSMPS regulator type
regulator: qcom_spmi: Add support for LDO_510 and FTSMPS
regulator: qcom_spmi: Sort pmics alphabetically (part 1)
regulator: qcom_spmi: Sort pmics alphabetically (part 2)
regulator: qcom_spmi: Add PM6125 PMIC support
regulator: qcom_smd: Sort pmics alphabetically (part 1)
regulator: qcom_smd: Sort pmics alphabetically (part 2)
regulator: qcom_smd: Sort pmics alphabetically (part 3)
regulator: qcom_smd: Add PM6125 RPM regulators
.../regulator/qcom,smd-rpm-regulator.yaml | 26 +-
.../regulator/qcom,spmi-regulator.yaml | 32 ++
drivers/regulator/qcom_smd-regulator.c | 400 ++++++++++--------
drivers/regulator/qcom_spmi-regulator.c | 378 ++++++++++++-----
4 files changed, 551 insertions(+), 285 deletions(-)
--
2.37.1
Merge series from Jerome Neanne <jneanne@baylibre.com>:
This driver supports
- 3 Buck regulators and 4 LDOs
- low-power standby mode
- warm/soft reset
- basic fault handling (via interrupts).
- power button
Not implemented
- DVS
1-Regulators:
Full implementation and test
Visual check: cat /sys/kernel/debug/regulator/regulator_summary
Full validation requires userspace-consumer and virtual-regulator
LDO1 is not used and output can be probbed on TP84.
Merge series from Matti Vaittinen <mazziesaccount@gmail.com>:
Use devm helpers for regulator get and enable
NOTE: The series depends on commit
ee94aff2628b ("Devm helpers for regulator get and enable")
which currently sits in Mark's regulator/for-next
A few* drivers seem to pattern demonstrated by pseudocode:
- devm_regulator_get()
- regulator_enable()
- devm_add_action_or_reset(regulator_disable())
devm helpers for this pattern were added to remove bunch of code from
drivers. Typically following:
- replace 3 calls (devm_regulator_get[_optional](), regulator_enable(),
devm_add_action_or_reset()) with just one
(devm_regulator_get_enable[_optional]()).
- drop disable callback.
I believe this simplifies things by removing some dublicated code.
This series reowrks a few drivers. There is still plenty of fish in the
sea for people who like to improve the code (or count the beans ;]).
Finally - most of the converted drivers have not been tested (other than
compile-tested) due to lack of HW. All reviews and testing is _highly_
appreciated (as always!).
Revision history:
v3:
- Drop already applied helper patches
- Add a few more drivers
RFCv1 => v2:
- Add devm_regulator_bulk_get_enable() and
devm_regulator_bulk_put()
- Convert a couple of drivers to use the new
devm_regulator_bulk_get_enable().
- Squash all IIO patches into one.
Patch 1:
Add new devm-helper APIs to docs.
Patch 2:
simplified CLK driver(s)
Patch 3:
simplified GPU driver(s)
Patch 4 - 5:
simplified hwmon driver(s)
Patch 6 - 14:
simplified IIO driver(s)
---
Matti Vaittinen (14):
docs: devres: regulator: Add new get_enable functions to devres.rst
clk: cdce925: simplify using devm_regulator_get_enable()
gpu: drm: simplify drivers using devm_regulator_*get_enable*()
hwmon: lm90: simplify using devm_regulator_get_enable()
hwmon: adm1177: simplify using devm_regulator_get_enable()
iio: ad7192: Simplify using devm_regulator_get_enable()
iio: ltc2688: Simplify using devm_regulator_*get_enable()
iio: bmg160_core: Simplify using devm_regulator_*get_enable()
iio: st_lsm6dsx: Simplify using devm_regulator_*get_enable()
iio: ad7476: simplify using devm_regulator_get_enable()
iio: ad7606: simplify using devm_regulator_get_enable()
iio: max1241: simplify using devm_regulator_get_enable()
iio: max1363: simplify using devm_regulator_get_enable()
iio: hmc425a: simplify using devm_regulator_get_enable()
.../driver-api/driver-model/devres.rst | 4 +++
drivers/clk/clk-cdce925.c | 21 +++----------
drivers/gpu/drm/bridge/sii902x.c | 22 ++------------
drivers/gpu/drm/meson/meson_dw_hdmi.c | 23 ++------------
drivers/hwmon/adm1177.c | 27 ++---------------
drivers/hwmon/lm90.c | 15 ++--------
drivers/iio/adc/ad7192.c | 15 ++--------
drivers/iio/adc/ad7476.c | 11 +------
drivers/iio/adc/ad7606.c | 22 ++------------
drivers/iio/adc/ad7606.h | 1 -
drivers/iio/adc/max1241.c | 28 ++---------------
drivers/iio/adc/max1363.c | 11 +------
drivers/iio/amplifiers/hmc425a.c | 17 +----------
drivers/iio/dac/ltc2688.c | 23 ++------------
drivers/iio/gyro/bmg160_core.c | 24 ++-------------
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h | 2 --
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 30 ++++---------------
17 files changed, 41 insertions(+), 255 deletions(-)
--
2.37.1
--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND
~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
The regulators set consists of 3 bucks DCDCs and 4 LDOs. The output
voltages are configurable and are meant to supply power to the
main processor and other components.
Validation:
Visual check: cat /sys/kernel/debug/regulator/regulator_summary
Validation: userspace-consumer and virtual-regulator required
to test further
Enable/Disable:
cat /sys/devices/platform/userspace-consumer-VDDSHV_SD_IO_PMIC/state
echo disabled > /sys/devices/platform/
userspace-consumer-VDDSHV_SD_IO_PMIC/state
echo enabled > /sys/devices/platform/
userspace-consumer-VDDSHV_SD_IO_PMIC/state
Change voltage:
cat /sys/devices/platform/regulator-virtual-ldo1/min_microvolts
echo 1000000 > /sys/devices/platform/regulator-virtual-ldo1/
min_microvolts
echo 3000000 > /sys/devices/platform/regulator-virtual-ldo1/
max_microvolts
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Link: https://lore.kernel.org/r/20220805121852.21254-9-jneanne@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add TPS65219 PMIC bindings using json-schema.
Describe required properties and regname-supply.
regname-supply is required when bypass mode is used for a regulator.
Describes regulator topology.
Interrupts support.
Add a power-button property to configure the EN/PB/VSENSE pin as a
powerbutton:
TPS65219 has a multipurpose pin called EN/PB/VSENSE that can be either:
- EN in which case it functions as an enable pin.
- VSENSE which compares the voltages and triggers an automatic
on/off request.
- PB in which case it can be configured to trigger an interrupt
to the SoC.
ti,power-button reflects the last one of those options
where the board has a button wired to the pin and triggers
an interrupt on pressing it.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220805121852.21254-5-jneanne@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add support for PM6125 PMIC which is found on SM4250/6115 SoCs.
S1, S2, S3, S4, S8 are FTS+FTSMPS_510, rev 2
- range is 0.3-1.372V by 4mV increments
S5, S6, s7 are BUCK+HFSMPS_510, rev 4
- range is 0.32-2.04V by 8mV increment
L1, L3, L7 are LDO+N600_510, rev 2
L2, L4, L8, L17, L18 are LDO+N300_510, rev 2
L6 is LDO+N1200_510, rev 2
- range is 0.32-1.304V by 8mV increment
L5 is LDO+MV_P50_510, rev 2
L15, L19, L20 are LDO+MV_P150_510, rev 2
L21, L22, L23, L24 are LDO+MV_P600_510, rev 2
- range is 1.504-3.544V by 8mV increment
L9, L11, L14 are LDO+LV_P600_510, rev 2
L10, L16 are LDO+LV_P150_510, rev 2
L12, L13 are LDO+LV_P300_510, rev 2
- range 1.504-2V by 8mV increment
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220802221112.2280686-10-iskren.chernev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This is preparation for supporing PM6125.
The HFSMPS is a BUCK type regulator with subtype 0x0a, same as the
existing HFS430 regulator.
Even though the HFSMPS and HFS430 share a type and subtype, the HFSMPS has
an updated register map, including different mode values, moved pull down
register, and different slew rate address and formula.
In addition to NORMAL (NPM), FAST (AUTO_LPM) and IDLE (LPM), the
regulator also supports RETENTION and AUTO_RM which are currently
unselectable by the driver.
The inspiration of this is taken from [1].
[1] https://source.codeaurora.org/quic/la/kernel/msm-5.4/commit/?h=kernel.lnx.5.4.r1-rel&id=d1220daeffaa440ffff0a8c47322eb0033bf54f5
Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Link: https://lore.kernel.org/r/20220802221112.2280686-6-iskren.chernev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Document the pm6125 compatible string and available regulators in the QCom
SMD RPM regulator documentation.
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220802221112.2280686-5-iskren.chernev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add support for pm6125 compatible string and add relevant supplies in QCom
SPMI regulator documentation.
Signed-off-by: Adam Skladowski <a39.skl@gmail.com>
Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220802221112.2280686-3-iskren.chernev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add a newline between if-then blocks for different compatible PMICs.
Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220802221112.2280686-2-iskren.chernev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
In order to ensure only documented properties are present, node schemas
must have unevaluatedProperties or additionalProperties set to false
(typically).
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220823145649.3118479-7-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Previously, an unresolved regulator supply reference upon calling
regulator_register on an always-on or boot-on regulator caused
set_machine_constraints to be called twice.
This in turn may initialize the regulator twice, leading to voltage
glitches that are timing-dependent. A simple, unrelated configuration
change may be enough to hide this problem, only to be surfaced by
chance.
One such example is the SD-Card voltage regulator in a NanoPI R4S that
would not initialize reliably unless the registration flow was just
complex enough to allow the regulator to properly reset between calls.
Fix this by re-arranging regulator_register, trying resolve the
regulator's supply early enough that set_machine_constraints does not
need to be called twice.
Signed-off-by: Christian Kohlschütter <christian@kohlschutter.com>
Link: https://lore.kernel.org/r/20220818124646.6005-1-christian@kohlschutter.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Matti Vaittinen <mazziesaccount@gmail.com>:
A few* drivers seem to use pattern demonstrated by pseudocode:
- devm_regulator_get()
- regulator_enable()
- devm_add_action_or_reset(regulator_disable())
Introducing devm helpers for this pattern would remove bunch of code from
drivers. Typically following:
- replace 3 calls (devm_regulator_get[_optional](), regulator_enable(),
devm_add_action_or_reset()) with just one
(devm_regulator_get_enable[_optional]()).
- drop disable callback.
- remove stored pointer to struct regulator - which can lead to problem
when an devm action for regulator_disable is used.
I believe this simplifies things by removing some dublicated code.
The suggested managed 'get_enable' APIs do not return the pointer to
regulators for user because any call to regulator_disable()
(or regulator_enable()) may easily lead to regulator enable count imbalance
upon device detach. (Eg, if someone calls regulator_disable() and the
device is then detached before user has re-enabled the regulator). Not
returning the pointer to obtained regulator to caller is a good hint that
the enable/disable should not be manually handled when these APIs are used.
OTOH, not returning the pointer reduces the use-cases by not allowing
the consumers to perform other regulator actions. For example request the
voltages. A few drivers which used the "get, enable,
devm_action_to_disable" did also query the voltages. The API does not suit
needs of such users.
A few regulator consumer drivers seem to be just getting a regulator,
enabling it and registering a devm-action to disable the regulator at
the driver detach and then forget about it.
We can simplify this a bit by adding a devm-helper for this pattern.
Add devm_regulator_get_enable() and devm_regulator_get_enable_optional()
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/ed7b8841193bb9749d426f3cb3b199c9460794cd.1660292316.git.mazziesaccount@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Since we don't actually pass the load to the firmware, switch to using
get_optimum_mode() instead of open-coding it.
This is intended to have no effect other than cleanup.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20220726102024.1.Icc838fe7bf0ef54a014ab2fee8af311654f5342a@changeid
Signed-off-by: Mark Brown <broonie@kernel.org>
Radix tree header includes gfp.h for __GFP_BITS_SHIFT only. Now we
have gfp_types.h for this.
Fixes powerpc allmodconfig build:
In file included from include/linux/nodemask.h:97,
from include/linux/mmzone.h:17,
from include/linux/gfp.h:7,
from include/linux/radix-tree.h:12,
from include/linux/idr.h:15,
from include/linux/kernfs.h:12,
from include/linux/sysfs.h:16,
from include/linux/kobject.h:20,
from include/linux/pci.h:35,
from arch/powerpc/kernel/prom_init.c:24:
include/linux/random.h: In function 'add_latent_entropy':
>> include/linux/random.h:25:46: error: 'latent_entropy' undeclared (first use in this function); did you mean 'add_latent_entropy'?
25 | add_device_randomness((const void *)&latent_entropy, sizeof(latent_entropy));
| ^~~~~~~~~~~~~~
| add_latent_entropy
include/linux/random.h:25:46: note: each undeclared identifier is reported only once for each function it appears in
Reported-by: kernel test robot <lkp@intel.com>
CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
somebody left NULL ->proc_lseek, became a practical issue now.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs lseek fix from Al Viro:
"Fix proc_reg_llseek() breakage. Always had been possible if somebody
left NULL ->proc_lseek, became a practical issue now"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
take care to handle NULL ->proc_lseek()
Easily done now, just by clearing FMODE_LSEEK in ->f_mode
during proc_reg_open() for such entries.
Fixes: 868941b14441 "fs: remove no_llseek"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull more xen updates from Juergen Gross:
- fix the handling of the "persistent grants" feature negotiation
between Xen blkfront and Xen blkback drivers
- a cleanup of xen.config and adding xen.config to Xen section in
MAINTAINERS
- support HVMOP_set_evtchn_upcall_vector, which is more compliant to
"normal" interrupt handling than the global callback used up to now
- further small cleanups
* tag 'for-linus-6.0-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
MAINTAINERS: add xen config fragments to XEN HYPERVISOR sections
xen: remove XEN_SCRUB_PAGES in xen.config
xen/pciback: Fix comment typo
xen/xenbus: fix return type in xenbus_file_read()
xen-blkfront: Apply 'feature_persistent' parameter when connect
xen-blkback: Apply 'feature_persistent' parameter when connect
xen-blkback: fix persistent grants negotiation
x86/xen: Add support for HVMOP_set_evtchn_upcall_vector
- 'perf c2c' now supports ARM64, adjust its output to cope with differences with
what is in x86_64. Now go find false sharing on ARM64 (at least Neoverse) as well!
- Refactor the JSON processing, making the output more compact and thus reducing the
size of the resulting perf binary.
- Improvements for 'perf offcpu' profiling, including tracking child processes.
- Update Intel JSON metrics and events files for broadwellde, broadwellx,
cascadelakex, haswellx, icelakex, ivytown, jaketown, knightslanding,
sapphirerapids, skylakex and snowridgex.
- Add 'perf stat' JSON output and a 'perf test' entry for it.
- Ignore memfd and anonymous mmap events if jitdump present.
- Refactor 'perf test' shell tests allowing subdirs.
- Fix an error handling path in 'parse_perf_probe_command()'
- Fixes for the guest Intel PT tracing patchkit in the 1st batch of this merge window.
- Print debuginfod queries if -v option is used, to explain delays in processing when
debuginfo servers are enabled to fetch DSOs with richer symbol tables.
- Improve error message for 'perf record -p not_existing_pid'
- Fix openssl and libbpf feature detection.
- Add PMU pai_crypto event description for IBM z16 on 'perf list'.
- Fix typos and duplicated words on comments in various places.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull more perf tool updates from Arnaldo Carvalho de Melo:
- 'perf c2c' now supports ARM64, adjust its output to cope with
differences with what is in x86_64. Now go find false sharing on
ARM64 (at least Neoverse) as well!
- Refactor the JSON processing, making the output more compact and thus
reducing the size of the resulting perf binary
- Improvements for 'perf offcpu' profiling, including tracking child
processes
- Update Intel JSON metrics and events files for broadwellde,
broadwellx, cascadelakex, haswellx, icelakex, ivytown, jaketown,
knightslanding, sapphirerapids, skylakex and snowridgex
- Add 'perf stat' JSON output and a 'perf test' entry for it
- Ignore memfd and anonymous mmap events if jitdump present
- Refactor 'perf test' shell tests allowing subdirs
- Fix an error handling path in 'parse_perf_probe_command()'
- Fixes for the guest Intel PT tracing patchkit in the 1st batch of
this merge window
- Print debuginfod queries if -v option is used, to explain delays in
processing when debuginfo servers are enabled to fetch DSOs with
richer symbol tables
- Improve error message for 'perf record -p not_existing_pid'
- Fix openssl and libbpf feature detection
- Add PMU pai_crypto event description for IBM z16 on 'perf list'
- Fix typos and duplicated words on comments in various places
* tag 'perf-tools-fixes-for-v6.0-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (81 commits)
perf test: Refactor shell tests allowing subdirs
perf vendor events: Update events for snowridgex
perf vendor events: Update events and metrics for skylakex
perf vendor events: Update metrics for sapphirerapids
perf vendor events: Update events for knightslanding
perf vendor events: Update metrics for jaketown
perf vendor events: Update metrics for ivytown
perf vendor events: Update events and metrics for icelakex
perf vendor events: Update events and metrics for haswellx
perf vendor events: Update events and metrics for cascadelakex
perf vendor events: Update events and metrics for broadwellx
perf vendor events: Update metrics for broadwellde
perf jevents: Fold strings optimization
perf jevents: Compress the pmu_events_table
perf metrics: Copy entire pmu_event in find metric
perf pmu-events: Hide the pmu_events
perf pmu-events: Don't assume pmu_event is an array
perf pmu-events: Move test events/metrics to JSON
perf test: Use full metric resolution
perf pmu-events: Hide pmu_events_map
...
- Ensure we never emit lwarx with EH=1 on 32-bit, because some 32-bit CPUs trap on it
rather than ignoring it as they should.
- Fix ftrace when building with clang, which was broken by some refactoring.
- A couple of other minor fixes.
Thanks to: Christophe Leroy, Naveen N. Rao, Nick Desaulniers, Ondrej Mosnacek, Pali Rohár,
Russell Currey Segher Boessenkool.
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Merge tag 'powerpc-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Ensure we never emit lwarx with EH=1 on 32-bit, because some 32-bit
CPUs trap on it rather than ignoring it as they should.
- Fix ftrace when building with clang, which was broken by some
refactoring.
- A couple of other minor fixes.
Thanks to Christophe Leroy, Naveen N. Rao, Nick Desaulniers, Ondrej
Mosnacek, Pali Rohár, Russell Currey, and Segher Boessenkool.
* tag 'powerpc-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/kexec: Fix build failure from uninitialised variable
powerpc/ppc-opcode: Fix PPC_RAW_TW()
powerpc64/ftrace: Fix ftrace for clang builds
powerpc: Make eh value more explicit when using lwarx
powerpc: Don't hide eh field of lwarx behind a macro
powerpc: Fix eh field when calling lwarx on PPC32
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull /proc/mounts fix from Al Viro:
"Fix for /proc/mounts escaping - escape the '#' character too"
* tag 'pull-work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vfs: escape hash as well
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Merge tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull more cifs updates from Steve French:
- two fixes for stable, one for a lock length miscalculation, and
another fixes a lease break timeout bug
- improvement to handle leases, allows the close timeout to be
configured more safely
- five restructuring/cleanup patches
* tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Do not access tcon->cfids->cfid directly from is_path_accessible
cifs: Add constructor/destructors for tcon->cfid
SMB3: fix lease break timeout when multiple deferred close handles for the same file.
smb3: allow deferred close timeout to be configurable
cifs: Do not use tcon->cfid directly, use the cfid we get from open_cached_dir
cifs: Move cached-dir functions into a separate file
cifs: Remove {cifs,nfs}_fscache_release_page()
cifs: fix lock length calculation
Enable multipage folio support for the afs filesystem.
Support has already been implemented in netfslib, fscache and cachefiles
and in most of afs, but I've waited for Matthew Wilcox's latest folio
changes.
Note that it does require a change to afs_write_begin() to return the
correct subpage. This is a "temporary" change as we're working on
getting rid of the need for ->write_begin() and ->write_end()
completely, at least as far as network filesystems are concerned - but
it doesn't prevent afs from making use of the capability.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: kafs-testing@auristor.com
Cc: Marc Dionne <marc.dionne@auristor.com>
Cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/lkml/2274528.1645833226@warthog.procyon.org.uk/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- fix a potential use-after-free bug in posix timers
- correct a prototype
- address a build warning
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Ingo Molnar:
"Misc timer fixes:
- fix a potential use-after-free bug in posix timers
- correct a prototype
- address a build warning"
* tag 'timers-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-cpu-timers: Cleanup CPU timers before freeing them during exec
time: Correct the prototype of ns_to_kernel_old_timeval and ns_to_timespec64
posix-timers: Make do_clock_gettime() static
(not turned on by default), which also need STIBP enabled (if
available) to be '100% safe' on even the shortest speculation
windows.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
"Fix the 'IBPB mitigated RETBleed' mode of operation on AMD CPUs (not
turned on by default), which also need STIBP enabled (if available) to
be '100% safe' on even the shortest speculation windows"
* tag 'x86-urgent-2022-08-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bugs: Enable STIBP for IBPB mitigated RETBleed
and NTB EndPoint Function (EPF) support and the various fixes from that
being in -next for Linux v5.20
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Merge tag 'ntb-5.20' of https://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"Non-Transparent Bridge updates.
Fix of heap data and clang warnings, support for a new Intel NTB
device, and NTB EndPoint Function (EPF) support and the various fixes
for that"
* tag 'ntb-5.20' of https://github.com/jonmason/ntb:
MAINTAINERS: add PCI Endpoint NTB drivers to NTB files
NTB: EPF: Tidy up some bounds checks
NTB: EPF: Fix error code in epf_ntb_bind()
PCI: endpoint: pci-epf-vntb: reduce several globals to statics
PCI: endpoint: pci-epf-vntb: fix error handle in epf_ntb_mw_bar_init()
PCI: endpoint: Fix Kconfig dependency
NTB: EPF: set pointer addr to null using NULL rather than 0
Documentation: PCI: extend subheading underline for "lspci output" section
Documentation: PCI: Use code-block block for scratchpad registers diagram
Documentation: PCI: Add specification for the PCI vNTB function device
PCI: endpoint: Support NTB transfer between RC and EP
NTB: epf: Allow more flexibility in the memory BAR map method
PCI: designware-ep: Allow pci_epc_set_bar() update inbound map address
ntb: intel: add GNR support for Intel PCIe gen5 NTB
NTB: ntb_tool: uninitialized heap data in tool_fn_write()
ntb: idt: fix clang -Wformat warnings
- Return error codes from block device flushes to userspace.
- Fix a deadlock between reclaim and mount time quotacheck.
- Fix an unnecessary ENOSPC return when doing COW on a filesystem with
severe free space fragmentation.
- Fix a miscalculation in the transaction reservation computations for
file removal operations.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'xfs-5.20-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull more xfs updates from Darrick Wong:
"There's not a lot this time around, just the usual bug fixes and
corrections for missing error returns.
- Return error codes from block device flushes to userspace
- Fix a deadlock between reclaim and mount time quotacheck
- Fix an unnecessary ENOSPC return when doing COW on a filesystem
with severe free space fragmentation
- Fix a miscalculation in the transaction reservation computations
for file removal operations"
* tag 'xfs-5.20-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix inode reservation space for removing transaction
xfs: Fix false ENOSPC when performing direct write on a delalloc extent in cow fork
xfs: fix intermittent hang during quotacheck
xfs: check return codes when flushing block devices
