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When the proportion of folios from the zeromap is small, missing their
accounting may not significantly impact profiling. However, it's easy to
construct a scenario where this becomes an issue—for example, allocating
1 GB of memory, writing zeros from userspace, followed by MADV_PAGEOUT,
and then swapping it back in. In this case, the swap-out and swap-in
counts seem to vanish into a black hole, potentially causing semantic
ambiguity.
On the other hand, Usama reported that zero-filled pages can exceed 10% in
workloads utilizing zswap, while Hailong noted that some app in Android
have more than 6% zero-filled pages. Before commit 0ca0c24e3211 ("mm:
store zero pages to be swapped out in a bitmap"), both zswap and zRAM
implemented similar optimizations, leading to these optimized-out pages
being counted in either zswap or zRAM counters (with pswpin/pswpout also
increasing for zRAM). With zeromap functioning prior to both zswap and
zRAM, userspace will no longer detect these swap-out and swap-in actions.
We have three ways to address this:
1. Introduce a dedicated counter specifically for the zeromap.
2. Use pswpin/pswpout accounting, treating the zero map as a standard
backend. This approach aligns with zRAM's current handling of
same-page fills at the device level. However, it would mean losing the
optimized-out page counters previously available in zRAM and would not
align with systems using zswap. Additionally, as noted by Nhat Pham,
pswpin/pswpout counters apply only to I/O done directly to the backend
device.
3. Count zeromap pages under zswap, aligning with system behavior when
zswap is enabled. However, this would not be consistent with zRAM, nor
would it align with systems lacking both zswap and zRAM.
Given the complications with options 2 and 3, this patch selects
option 1.
We can find these counters from /proc/vmstat (counters for the whole
system) and memcg's memory.stat (counters for the interested memcg).
For example:
$ grep -E 'swpin_zero|swpout_zero' /proc/vmstat
swpin_zero 1648
swpout_zero 33536
$ grep -E 'swpin_zero|swpout_zero' /sys/fs/cgroup/system.slice/memory.stat
swpin_zero 3905
swpout_zero 3985
This patch does not address any specific zeromap bug, but the missing
swpout and swpin counts for zero-filled pages can be highly confusing and
may mislead user-space agents that rely on changes in these counters as
indicators. Therefore, we add a Fixes tag to encourage the inclusion of
this counter in any kernel versions with zeromap.
Many thanks to Kanchana for the contribution of changing
count_objcg_event() to count_objcg_events() to support large folios[1],
which has now been incorporated into this patch.
[1] https://lkml.kernel.org/r/20241001053222.6944-5-kanchana.p.sridhar@intel.com
Link: https://lkml.kernel.org/r/20241107011246.59137-1-21cnbao@gmail.com
Fixes: 0ca0c24e3211 ("mm: store zero pages to be swapped out in a bitmap")
Co-developed-by: Kanchana P Sridhar <kanchana.p.sridhar@intel.com>
Signed-off-by: Barry Song <v-songbaohua@oppo.com>
Reviewed-by: Nhat Pham <nphamcs@gmail.com>
Reviewed-by: Chengming Zhou <chengming.zhou@linux.dev>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Usama Arif <usamaarif642@gmail.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Cc: Hailong Liu <hailong.liu@oppo.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Kairui Song <kasong@tencent.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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We can't assume that btrees only contain keys of a given type - even if
they only have a single key type listed in the allowed key types for
that btree; this is a forwards compatibility issue.
Reported-by: syzbot+a27c3aaa3640dd3e1dfb@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Fixes: baefd3f849ed ("bcachefs: btree_cache.freeable list fixes")
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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PMBUS_NO_WRITE_PROTECT and PMBUS_USE_COEFFICIENTS_CMD flags have been added
to pmbus, but the corresponding documentation was not updated.
Update the documentation before adding new flags
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Message-ID: <20241105-tps25990-v4-1-0e312ac70b62@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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SY24655: Support for current and voltage detection as well as
power calculation.
Signed-off-by: Wenliang Yan <wenliang202407@163.com>
Message-ID: <20241106150547.2538-1-wenliang202407@163.com>
[groeck: Changed order of compatible entries;
dropped spurious extra return statement in is_visible();
fixed code problems]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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SY24655 is similar to INA226. Its supply voltage and pin definitions
are therefore the same. Compared to INA226, SY24655 has two additional
registers for configuring and calculating average power.
Signed-off-by: Wenliang Yan <wenliang202407@163.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Message-ID: <20241106150547.2538-2-wenliang202407@163.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add support for LTC7841. The LTC7841 is a high performance
PolyPhase® single output synchronous boost converter controller.
Multiphase operation reduces input and output capacitor
requirements and allows the use of smaller inductors than the
single-phase equivalent.
The relevant registers in the LTC7841 are similar to the
LTC7880, only reduced by some amount. So it's just a matter of adding
the chip id. The device also doesn't support polling, on top of the
reduced register set, so a separate case for setting the chip info is
added.
Signed-off-by: Mariel Tinaco <Mariel.Tinaco@analog.com>
Message-ID: <20241029013734.293024-4-Mariel.Tinaco@analog.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add LTC7841 to compatible devices of LTC2978
Signed-off-by: Mariel Tinaco <Mariel.Tinaco@analog.com>
Message-ID: <20241029013734.293024-3-Mariel.Tinaco@analog.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add LTC7841 to supported devices of LTC2978. It has similar set of
registers to LTC7880, differing only in number of output channels and
some unimplemented PMBUS status and functionalities.
Signed-off-by: Mariel Tinaco <Mariel.Tinaco@analog.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Message-ID: <20241029013734.293024-2-Mariel.Tinaco@analog.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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The NCT7363Y is a fan controller which provides up to 16
independent FAN input monitors. It can report each FAN input count
values. The NCT7363Y also provides up to 16 independent PWM
outputs. Each PWM can output specific PWM signal by manual mode to
control the FAN duty outside.
Signed-off-by: Ban Feng <kcfeng0@nuvoton.com>
Message-ID: <20241022052905.4062682-3-kcfeng0@nuvoton.com>
[groeck: Dropped unnecessary variable initialization, and , after { }]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add bindings for the Nuvoton NCT7363Y Fan Controller
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Ban Feng <kcfeng0@nuvoton.com>
Message-ID: <20241022052905.4062682-2-kcfeng0@nuvoton.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Remove vicor,pli1209bc from trivial-devices as it requires additional
properties and does not fit into the trivial devices category.
Add new bindings for Vicor pli1209bc, a Digital Supervisor with
Isolation for use with BCM Bus Converter Modules.
VR rails are defined under regulator node as expected by pmbus driver.
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-ID: <20241021123044.3648960-1-naresh.solanki@9elements.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Remove mps297x from trivial-devices as it requires
additional properties and does not fit into the trivial
devices category.
Add new bindings for MPS mp2971, mp2973 & mp2975.
It is Dual-Loop, Digital Multi-Phase Controller with PMBUS
interface
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Message-ID: <20241022103750.572677-1-naresh.solanki@9elements.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Per his request, remove Aleksandr Mezin as maintainer of the
NZXT-SMART2 hardware monitoring driver.
Cc: Aleksandr Mezin <mezin.alexander@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Boards such as
* Pro WS 665-ACE
* Pro WS 600M-CL
have got a nct6775 chip, but by default there's no use of it
because of resource conflict with WMI method.
Add affected boards to the WMI monitoring list.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=204807
Co-developed-by: Tommy Giesler <tommy.giesler@hetzner.com>
Signed-off-by: Tommy Giesler <tommy.giesler@hetzner.com>
Signed-off-by: Sarah Maedel <sarah.maedel@hetzner-cloud.de>
Message-ID: <20241018074611.358619-1-sarah.maedel@hetzner-cloud.de>
[groeck: Change commit message to imperative mood]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Driver for Renesas ISL28022 power monitor with I2C interface.
The device monitors voltage, current via shunt resistor
and calculated power.
Signed-off-by: Carsten Spieß <mail@carsten-spiess.de>
Signed-off-by: Yikai Tsai <yikai.tsai.wiwynn@gmail.com>
Message-ID: <20241002081133.13123-3-yikai.tsai.wiwynn@gmail.com>
[groeck: Fixed alignment issues, dropped noise at end of probe]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add dt-bindings for Renesas ISL28022 power monitor.
Signed-off-by: Carsten Spieß <mail@carsten-spiess.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Yikai Tsai <yikai.tsai.wiwynn@gmail.com>
Message-ID: <20241002081133.13123-2-yikai.tsai.wiwynn@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/hwmonto use .remove(), with
the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.
While touching these files, make indention of the struct initializer
consistent in several files.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Message-ID: <20241017155900.137357-2-u.kleine-koenig@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add support for manipulating the internal heater of sht4x devices.
Enabling the heater removes condensed water from the sensor surface
which disturbs the relative humidity measurements.
The heater can operate at three heating levels (20, 110 or 200
milliwatts). Also, two heating durations may be selected (0.1 or 1s).
Once the heating time elapses the heater is automatically switched off.
Changes since v3:
* struct sht4x_data: add heating_complete timestamp
* struct sht4x_data: add data_pending flag
* heater_enable_store: return -EINVAL if input != 1
* heater_enable_store: check for data->heating_complete and update it
* heater_enable_store: set data_pending flag after heating request
* sht4x_read_values: msleep if heating in progress
* sht4x_read_values: dont send measurement request if data_pending
* heater_enable attr: make it RW
* Documentation: update info about heater_enable attr
Changes since v2:
* heater_enable_store: remove unnecessary if
* Documentation: remove incorrect info about turning off the heater
* be more specific in the patch description
Changes since v1:
* explain the use case of the new attributes set
* heater_enable attr: make it write-only
* heater_enable_store: define cmd as u8 instead of u8*
* heater_enable_store: remove unreachable data path
* heater_enable_store: remove unnecessary lock
* heater_enable_store: call i2c_master_send only if status==true
* define attributes as DEVICE_ATTR_* instead of SENSOR_DEVICE_ATTR_*
Signed-off-by: Antoni Pokusinski <apokusinski01@gmail.com>
Message-ID: <20240930205346.2147-1-apokusinski01@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Use new member visible of struct hwmon_ops to simplify specifying
the static attribute visibility.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Message-ID: <1ac2be2d-df4f-455a-900d-821fc7bd12c4@gmail.com>
Acked-by: Jonas Malaco <jonas@protocubo.io>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Use new member visible of struct hwmon_ops to simplify specifying
the static attribute visibility.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Message-ID: <8ef99170-b37d-4c9a-b3bf-59f4ea76cf29@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Use new member visible of struct hwmon_ops to simplify specifying
the static attribute visibility.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Message-ID: <4e8893a1-b080-4676-97b9-a48ac9ead28a@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Use new member visible of struct hwmon_ops to simplify specifying
the static attribute visibility.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Thomas Weißschuh <linux@weissschuh.net>
Message-ID: <c4b4568b-59f6-43ac-8281-536a82ecd6ab@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Use new member visible of struct hwmon_ops to simplify specifying
the static attribute visibility.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Message-ID: <bd909a2c-23ee-437d-9bd4-858119f6f266@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Use new member visible of struct hwmon_ops to simplify specifying
the static attribute visibility.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Message-ID: <5c26d8cf-d6dc-46c5-be7c-fd8207b3f177@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Use new member visible of struct hwmon_ops to simplify specifying
the static attribute visibility.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Message-ID: <d5d2570c-dfd9-4be5-ad9f-e721be477131@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Use new member visible of struct hwmon_ops to simplify specifying
the static attribute visibility.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Message-ID: <2b1f2778-1127-4979-b02d-f75e16497ad7@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Remove platform data & initialize with defaults
configuration & overwrite based on DT properties.
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Message-ID: <20241007090426.811736-1-naresh.solanki@9elements.com>
[groeck: Dropped some unnecessary empty lines]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Several drivers return the same static value in their is_visible
callback, what results in code duplication. Therefore add an option
for drivers to specify a static visibility directly.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Message-ID: <89690b81-2c73-47ae-9ae9-45c77b45ca0c@gmail.com>
groeck: Renamed hwmon_ops_is_visible -> hwmon_is_visible
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Below mentioned spelling errors reported by codesepll
were fixed:
respresents ==> represents
signifcant ==> significant
bandwitdh ==> bandwidth
Signed-off-by: Everest K.C. <everestkc@everestkc.com.np>
Message-ID: <20241001011521.80982-1-everestkc@everestkc.com.np>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Theobroma Systems Mule is an MCU that emulates a set of I2C devices,
among which is an amc6821 and other devices that are reachable through
an I2C-mux.
The devices on the mux can be selected by writing the appropriate device
number to an I2C config register (amc6821: reg 0xff)
Implement "tsd,mule" compatible to instantiate the I2C-mux platform device
when probing the amc6821.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Farouk Bouabid <farouk.bouabid@cherry.de>
Message-ID: <20240906-dev-mule-i2c-mux-v8-4-dbd28a150e41@cherry.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add dt-bindings for amc6821 intelligent temperature monitor and
pulse-width modulation (PWM) fan controller.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Farouk Bouabid <farouk.bouabid@cherry.de>
Message-ID: <20240906-dev-mule-i2c-mux-v8-3-dbd28a150e41@cherry.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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To ensure code clarity and prevent potential errors, use ';' instead of
',' as a statement separator in the function mpq8785_identify.
Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Message-ID: <20240919064939.3282-1-shenlichuan@vivo.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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INA260 is similar to other chips of the series, except it has an internal
shunt resistor. The calibration register is therefore not present. Also,
the current register address was changed, though that does not matter for
the driver since the shunt voltage register (which is now the current
register) value is already used to read the current.
Cc: Loic Guegan <loic.guegan@mailbox.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add configuration flag indicating if the chip supports alerts and limits
to prepare for adding INA260 support.
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.
This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.
While touching these structs, also remove commas after the sentinel
entries and use a consistent indention style.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Message-ID: <20240918123150.1540161-7-u.kleine-koenig@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A handful of Qualcomm clk driver fixes:
- Correct flags for X Elite USB MP GDSC and pcie pipediv2 clocks
- Fix alpha PLL post_div mask for the cases where width is not
specified
- Avoid hangs in the SM8350 video driver (venus) by setting HW_CTRL
trigger feature on the video clocks"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: gcc-x1e80100: Fix USB MP SS1 PHY GDSC pwrsts flags
clk: qcom: gcc-x1e80100: Fix halt_check for pipediv2 clocks
clk: qcom: clk-alpha-pll: Fix pll post div mask when width is not set
clk: qcom: videocc-sm8350: use HW_CTRL_TRIGGER for vcodec GDSCs
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"i2c-host fixes for v6.12-rc7 (from Andi):
- Fix designware incorrect behavior when concluding a transmission
- Fix Mule multiplexer error value evaluation"
* tag 'i2c-for-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: designware: do not hold SCL low when I2C_DYNAMIC_TAR_UPDATE is not set
i2c: muxes: Fix return value check in mule_i2c_mux_probe()
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If the caller supplies an iocb->ki_pos value that is close to the
filesystem upper limit, and an iterator with a count that causes us to
overflow that limit, then filemap_read() enters an infinite loop.
This behaviour was discovered when testing xfstests generic/525 with the
"localio" optimisation for loopback NFS mounts.
Reported-by: Mike Snitzer <snitzer@kernel.org>
Fixes: c2a9737f45e2 ("vfs,mm: fix a dead loop in truncate_inode_pages_range()")
Tested-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Borislav Petkov:
- Make sure GICv3 controller interrupt activation doesn't race with a
concurrent deactivation due to propagation delays of the register
write
* tag 'irq_urgent_for_v6.12_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v3: Force propagation of the active state with a read-back
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"20 hotfixes, 14 of which are cc:stable.
Three affect DAMON. Lorenzo's five-patch series to address the
mmap_region error handling is here also.
Apart from that, various singletons"
* tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mailmap: add entry for Thorsten Blum
ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()
signal: restore the override_rlimit logic
fs/proc: fix compile warning about variable 'vmcore_mmap_ops'
ucounts: fix counter leak in inc_rlimit_get_ucounts()
selftests: hugetlb_dio: check for initial conditions to skip in the start
mm: fix docs for the kernel parameter ``thp_anon=``
mm/damon/core: avoid overflow in damon_feed_loop_next_input()
mm/damon/core: handle zero schemes apply interval
mm/damon/core: handle zero {aggregation,ops_update} intervals
mm/mlock: set the correct prev on failure
objpool: fix to make percpu slot allocation more robust
mm/page_alloc: keep track of free highatomic
mm: resolve faulty mmap_region() error path behaviour
mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling
mm: refactor map_deny_write_exec()
mm: unconditionally close VMAs on error
mm: avoid unsafe VMA hook invocation when error arises on mmap hook
mm/thp: fix deferred split unqueue naming and locking
mm/thp: fix deferred split queue not partially_mapped
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt fixes from Greg KH:
"Here are some small remaining USB and Thunderbolt fixes and device ids
for 6.12-rc7. Included in here are:
- new USB serial driver device ids
- thunderbolt driver fixes for reported problems
- typec bugfixes
- dwc3 driver fix
- musb driver fix
All of these have been in linux-next this past week with no reported
issues"
* tag 'usb-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: serial: qcserial: add support for Sierra Wireless EM86xx
thunderbolt: Fix connection issue with Pluggable UD-4VPD dock
usb: typec: fix potential out of bounds in ucsi_ccg_update_set_new_cam_cmd()
usb: dwc3: fix fault at system suspend if device was already runtime suspended
usb: typec: qcom-pmic: init value of hdr_len/txbuf_len earlier
usb: musb: sunxi: Fix accessing an released usb phy
USB: serial: io_edgeport: fix use after free in debug printk
USB: serial: option: add Quectel RG650V
USB: serial: option: add Fibocom FG132 0x0112 composition
thunderbolt: Add only on-board retimers when !CONFIG_USB4_DEBUGFS_MARGINING
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are two small memory leak fixes for the vchiq_arm staging driver
that have been sitting in my tree for weeks and should get merged for
6.12-rc7 so that people don't keep tripping over them.
They both have been in linux-next for a while with no reported
problems"
* tag 'staging-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: vchiq_arm: Use devm_kzalloc() for drv_mgmt allocation
staging: vchiq_arm: Use devm_kzalloc() for vchiq_arm_state allocation
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Add a driver for the random number generator present on the Broadcom
BCM74110 SoC.
Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add a binding for the random number generator used on the BCM74110.
Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In commit 24cc57d8faaa ("padata: Honor the caller's alignment in case of
chunk_size 0"), the line 'ps.chunk_size = max(ps.chunk_size, 1ul)' was
added, making 'ps.chunk_size = 1U' redundant and never executed.
Signed-off-by: Zicheng Qu <quzicheng@huawei.com>
Acked-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The commit 320406cb60b6 ("crypto: inside-secure - Replace generic aes
with libaes") replaced crypto_alloc_cipher() with kmalloc(), but did not
modify the handling of the return value. When kmalloc() returns NULL,
PTR_ERR_OR_ZERO(NULL) returns 0, but in fact, the memory allocation has
failed, and -ENOMEM should be returned.
Fixes: 320406cb60b6 ("crypto: inside-secure - Replace generic aes with libaes")
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Acked-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The adf_init_aer() won't destroy device_reset_wq when alloc_workqueue()
for device_sriov_wq failed. Add destroy_workqueue for device_reset_wq to
fix this issue.
Fixes: 4469f9b23468 ("crypto: qat - re-enable sriov after pf reset")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Commit 1e562deacecc ("crypto: rsassa-pkcs1 - Migrate to sig_alg backend")
enforced that rsassa-pkcs1 sign/verify operations specify a hash
algorithm. That is necessary because per RFC 8017 sec 8.2, a hash
algorithm identifier must be prepended to the hash before generating or
verifying the signature ("Full Hash Prefix").
However the commit went too far in that it changed user space behavior:
KEYCTL_PKEY_QUERY system calls now return -EINVAL unless they specify a
hash algorithm. Intel Wireless Daemon (iwd) is one application issuing
such system calls (for EAP-TLS).
Closer analysis of the Embedded Linux Library (ell) used by iwd reveals
that the problem runs even deeper: When iwd uses TLS 1.1 or earlier, it
not only queries for keys, but performs sign/verify operations without
specifying a hash algorithm. These legacy TLS versions concatenate an
MD5 to a SHA-1 hash and omit the Full Hash Prefix:
https://git.kernel.org/pub/scm/libs/ell/ell.git/tree/ell/tls-suites.c#n97
TLS 1.1 was deprecated in 2021 by RFC 8996, but removal of support was
inadvertent in this case. It probably should be coordinated with iwd
maintainers first.
So reinstate support for such legacy protocols by defaulting to hash
algorithm "none" which uses an empty Full Hash Prefix.
If it is later on decided to remove TLS 1.1 support but still allow
KEYCTL_PKEY_QUERY without a hash algorithm, that can be achieved by
reverting the present commit and replacing it with the following patch:
https://lore.kernel.org/r/ZxalYZwH5UiGX5uj@wunner.de/
It's worth noting that Python's cryptography library gained support for
such legacy use cases very recently, so they do seem to still be a thing.
The Python developers identified IKE version 1 as another protocol
omitting the Full Hash Prefix:
https://github.com/pyca/cryptography/issues/10226
https://github.com/pyca/cryptography/issues/5495
The author of those issues, Zoltan Kelemen, spent considerable effort
searching for test vectors but only found one in a 2019 blog post by
Kevin Jones. Add it to testmgr.h to verify correctness of this feature.
Examination of wpa_supplicant as well as various IKE daemons (libreswan,
strongswan, isakmpd, raccoon) has determined that none of them seems to
use the kernel's Key Retention Service, so iwd is the only affected user
space application known so far.
Fixes: 1e562deacecc ("crypto: rsassa-pkcs1 - Migrate to sig_alg backend")
Reported-by: Klara Modin <klarasmodin@gmail.com>
Tested-by: Klara Modin <klarasmodin@gmail.com>
Closes: https://lore.kernel.org/r/2ed09a22-86c0-4cf0-8bda-ef804ccb3413@gmail.com/
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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