1136019 Commits

Author SHA1 Message Date
Zhang Qilong
955bee204f power: supply: z2_battery: Fix possible memleak in z2_batt_probe()
If devm_gpiod_get_optional() returns error, the charger should be
freed before z2_batt_probe returns according to the context. We
fix it by just gotoing to 'err' branch.

Fixes: a3b4388ea19b ("power: supply: z2_battery: Convert to GPIO descriptors")
Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-24 22:46:06 +01:00
Uwe Kleine-König
922bde5a09 power: supply: z2_battery: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:17 +01:00
Uwe Kleine-König
8a4f891b2a power: supply: ucs1002: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:17 +01:00
Uwe Kleine-König
6d43a4b0b2 power: supply: smb347: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:17 +01:00
Uwe Kleine-König
02d1a40141 power: supply: sbs-manager: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:17 +01:00
Uwe Kleine-König
ef3f6e07d5 power: supply: sbs: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:17 +01:00
Uwe Kleine-König
2adfc4370e power: supply: rt9455: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:17 +01:00
Uwe Kleine-König
f40ec8bc08 power: supply: rt5033_battery: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:17 +01:00
Uwe Kleine-König
d9ac265b57 power: supply: max17042_battery: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
a07fca6937 power: supply: max17040: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
b17018dee0 power: supply: max14656: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
97bdbe0d04 power: supply: ltc4162-l: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
66d9e8fc2b power: supply: ltc2941: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
d9cafca1f2 power: supply: lp8727: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
433e380226 power: supply: ds2782: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
67f56c79a5 power: supply: bq27xxx: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
79fc7c2660 power: supply: bq25980: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
c5cddca235 power: supply: bq25890: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
fb94ef2efa power: supply: bq256xx: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
ed4e2c7570 power: supply: bq2515x: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
aaf5339e29 power: supply: bq24735: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
924668b4ed power: supply: bq24257: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
31731754b9 power: supply: bq24190: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
31c050513c power: supply: bq2415x: Convert to i2c's .probe_new()
.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Uwe Kleine-König
02c70e9159 power: supply: adp5061: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it
can be trivially converted.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:12:16 +01:00
Sebastian Reichel
2f88b7050d Merge 'i2c/client_device_id_helper-immutable'
Merge immutable branch adding 'i2c_client_get_device_id()' function,
so that drivers can easily be converted to use i2c_driver::probe_new.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-20 20:09:22 +01:00
Matti Vaittinen
332d7d0c6d power: supply: 88pm860x: simplify using devm
Use devm variants for requesting threaded IRQ and for power-supply
registration. Clean up error path and remove the .remove-callback.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-17 23:47:23 +01:00
Zeng Heng
5b79480ce1 power: supply: fix residue sysfs file in error handle route of __power_supply_register()
If device_add() succeeds, we should call device_del() when want to
get rid of it, so move it into proper jump symbol.

Otherwise, when __power_supply_register() returns fail and goto
wakeup_init_failed to exit, there is still residue device file in sysfs.
When attempt to probe device again, sysfs would complain as below:

sysfs: cannot create duplicate filename '/devices/platform/i2c/i2c-0/0-001c/power_supply/adp5061'
Call Trace:
 dump_stack_lvl+0x68/0x85
 sysfs_warn_dup.cold+0x1c/0x29
 sysfs_create_dir_ns+0x1b1/0x1d0
 kobject_add_internal+0x143/0x390
 kobject_add+0x108/0x170

Fixes: 80c6463e2fa3 ("power_supply: Fix Oops from NULL pointer dereference from wakeup_source_activate")
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-17 23:38:10 +01:00
Angel Iglesias
662233731d i2c: core: Introduce i2c_client_get_device_id helper function
Introduces new helper function to aid in .probe_new() refactors. In order
to use existing i2c_get_device_id() on the probe callback, the device
match table needs to be accessible in that function, which would require
bigger refactors in some drivers using the deprecated .probe callback.

This issue was discussed in more detail in the IIO mailing list.

Link: https://lore.kernel.org/all/20221023132302.911644-11-u.kleine-koenig@pengutronix.de/
Suggested-by: Nuno Sá <noname.nuno@gmail.com>
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-11-14 20:49:33 +01:00
Krzysztof Kozlowski
09b327c991 dt-bindings: power: supply: bq25890: use one fallback compatible
BQ2589[0256] seem compatible between each other in major aspects and
remaining features are auto-detectable (by reading device revision ID
register).  Existing DTS already uses the compatibles with a fallback,
so adjust the bindings to reflect this and fix dtbs_check warning:

  arch/arm64/boot/dts/freescale/imx8mq-librem5-r2.dtb: charger@6a: compatible: ['ti,bq25895', 'ti,bq25890'] is too long

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-05 21:22:17 +01:00
Krzysztof Kozlowski
70547f34de dt-bindings: power: supply: maxim,max17042: allow power-supplies
MAX17042 Fuel Gauge uses power-supplies supplies:

  arch/arm64/boot/dts/freescale/imx8mq-librem5-r2.dtb: fuel-gauge@36: 'power-supplies' does not match any of the regexes: 'pinctrl-[0-9]+'

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-05 21:18:47 +01:00
Krzysztof Kozlowski
8c9e038a2a dt-bindings: power: supply: bq25890: allow power-supply fields
The BQ25890 schema references common power-supply.yaml, so allow all its
properties to fix warnings like:

  arch/arm64/boot/dts/freescale/imx8mq-librem5-r2.dtb: charger@6a: 'monitored-battery', 'power-supplies', ... do not match any of the regexes: 'pinctrl-[0-9]+'

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-05 21:18:47 +01:00
Krzysztof Kozlowski
c7d47d5166 dt-bindings: power: supply: define monitored-battery in common place
Define the type of monitored-battery in power-supply.yaml common schema.
Reference the schema where applicable to enforce the above in bindings
which have monitored-battery property.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-05 21:18:47 +01:00
Matti Vaittinen
eae063f647 power: supply: mt6360: Use LINEAR_RANGE_IDX()
Do minor clean-up by using the newly inroduced LINEAR_RANGE_IDX()
initialization macro.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-01 01:01:50 +01:00
Matti Vaittinen
9a265e04b9 power: supply: bd99954: Use LINEAR_RANGE()
Do minor clean-up by using newly inroduced LINEAR_RANGE() initialization
macro.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-11-01 01:01:50 +01:00
Lukas Bulwahn
98c148cd5c power: supply: core: repair kernel-doc for power_supply_vbat2ri()
The function power_supply_vbat2ri() does not have a parameter called table,
despite it being mentioned in the kernel-doc comment. The table is actually
obtained from the info parameter, the battery information container. Hence,
./scripts/kernel-doc -none drivers/power/supply/power_supply_core.c warns
about this excess function parameter.

Adjust the kernel-doc comment for power_supply_vbat2ri() for make W=1
happiness.

Fixes: e9e7d165b4b0 ("power: supply: Support VBAT-to-Ri lookup tables")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-31 23:31:57 +01:00
Marek Vasut
14a3d159ab power: supply: bq25890: Add Vsys regulator
The chip is capable of reporting Vsys voltage supplied to the system.
Add regulator which represents the Vsys supply. This can be used e.g.
as a supply for system PMIC input.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-29 01:40:31 +02:00
Marek Vasut
85052e9000 power: supply: bq25890: Add get_voltage support to Vbus regulator
The chip is capable of reporting Vbus voltage, add .get_voltage
implementation to Vbus regulator to report current Vbus voltage.
This requires for the Vbus regulator to be registered always
instead of the current state where the regulator is registered
only in case USB PHY is not found.

Do not provide Vbus regulator enable/disable ops in case USB PHY
is present, as they would race with USB PHY notifier which is also
used to toggle OTG boost mode.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-29 01:40:31 +02:00
Marek Vasut
5f5c10ecaf power: supply: bq25890: Factor out regulator registration code
Pull the regulator registration code into separate function, so it can
be extended to register more regulators later. Currently this is only
moving ifdeffery into one place and other preparatory changes. The
dev_err_probe() output string is changed to explicitly list vbus
regulator failure, so that once more regulators are registered, it
would be clear which one failed.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-29 01:40:31 +02:00
Marek Vasut
b63e60ebb3 power: supply: bq25890: Add support for setting user charge current and voltage limit
Let user set battery charge current and voltage limit via sysfs. This is
useful in case the user space needs to reduce charge current to keep the
system within thermal limits. The maximum charge current and voltage are
still limited to "ti,charge-current" and "ti,battery-regulation-voltage"
values to avoid damaging the hardware in case too high values are set by
user space.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-29 01:40:31 +02:00
Marek Vasut
7c85237519 power: supply: bq25890: Clean up POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE
Clean up misuse of POWER_SUPPLY_PROP_VOLTAGE,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX
and POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE
and document what exactly each value means.

The POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE content is newly read
back from hardware, while POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX
is reported as the maximum value set in DT.

The POWER_SUPPLY_PROP_VOLTAGE is newly used to report immediate value
of battery voltage V_BAT, which is what this property was intended to
report and which has been thus far misused to report the charger chip
output voltage V_SYS.

The V_SYS is no longer reported as there is currently no suitable
property to report V_SYS. V_SYS reporting will be reinstated in
subsequent patch.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-29 01:40:31 +02:00
Marek Vasut
8327a8abd4 power: supply: bq25890: Clean up POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT
Clean up misuse of POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT and
POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX and document what
exactly each value means.

The POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT content is newly read
back from hardware, while POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX
is reported as the maximum value set in DT.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-29 01:40:30 +02:00
Marek Vasut
ef1ca2102e power: supply: bq25890: Document POWER_SUPPLY_PROP_CURRENT_NOW
Document that POWER_SUPPLY_PROP_CURRENT_NOW really does refer to ADC-sampled
immediate battery charge current I_BAT , since the meaning is not clear with
all the currents which might be measured by charger chips.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-29 01:40:30 +02:00
wangjianli
03b33d4ac4 power/supply: fix repeated words in comments
Delete the redundant word 'the'.

Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-28 16:11:54 +02:00
Krzysztof Kozlowski
3f5b93f407 dt-bindings: power: reset: restart-handler: add common schema
Add common schema for restart and shutdown handlers, so they all use
same meaning of "priority" field.  The Linux drivers already have this
property and some systems want to customize it per-board in DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-28 15:54:28 +02:00
Colin Ian King
2e5632aef6 power: supply: lp8788: make const array name static
Don't populate the read-only array name on the stack but instead make
it static. Since the data and the pointers don't change also add in
a missing const. Also makes the object code a little smaller.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2022-10-28 15:53:46 +02:00
Linus Torvalds
9abf2313ad Linux 6.1-rc1 v6.1-rc1 2022-10-16 15:36:24 -07:00
Linus Torvalds
f1947d7c8a Random number generator fixes for Linux 6.1-rc1.
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Merge tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random

Pull more random number generator updates from Jason Donenfeld:
 "This time with some large scale treewide cleanups.

  The intent of this pull is to clean up the way callers fetch random
  integers. The current rules for doing this right are:

   - If you want a secure or an insecure random u64, use get_random_u64()

   - If you want a secure or an insecure random u32, use get_random_u32()

     The old function prandom_u32() has been deprecated for a while
     now and is just a wrapper around get_random_u32(). Same for
     get_random_int().

   - If you want a secure or an insecure random u16, use get_random_u16()

   - If you want a secure or an insecure random u8, use get_random_u8()

   - If you want secure or insecure random bytes, use get_random_bytes().

     The old function prandom_bytes() has been deprecated for a while
     now and has long been a wrapper around get_random_bytes()

   - If you want a non-uniform random u32, u16, or u8 bounded by a
     certain open interval maximum, use prandom_u32_max()

     I say "non-uniform", because it doesn't do any rejection sampling
     or divisions. Hence, it stays within the prandom_*() namespace, not
     the get_random_*() namespace.

     I'm currently investigating a "uniform" function for 6.2. We'll see
     what comes of that.

  By applying these rules uniformly, we get several benefits:

   - By using prandom_u32_max() with an upper-bound that the compiler
     can prove at compile-time is ≤65536 or ≤256, internally
     get_random_u16() or get_random_u8() is used, which wastes fewer
     batched random bytes, and hence has higher throughput.

   - By using prandom_u32_max() instead of %, when the upper-bound is
     not a constant, division is still avoided, because
     prandom_u32_max() uses a faster multiplication-based trick instead.

   - By using get_random_u16() or get_random_u8() in cases where the
     return value is intended to indeed be a u16 or a u8, we waste fewer
     batched random bytes, and hence have higher throughput.

  This series was originally done by hand while I was on an airplane
  without Internet. Later, Kees and I worked on retroactively figuring
  out what could be done with Coccinelle and what had to be done
  manually, and then we split things up based on that.

  So while this touches a lot of files, the actual amount of code that's
  hand fiddled is comfortably small"

* tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  prandom: remove unused functions
  treewide: use get_random_bytes() when possible
  treewide: use get_random_u32() when possible
  treewide: use get_random_{u8,u16}() when possible, part 2
  treewide: use get_random_{u8,u16}() when possible, part 1
  treewide: use prandom_u32_max() when possible, part 2
  treewide: use prandom_u32_max() when possible, part 1
2022-10-16 15:27:07 -07:00
Linus Torvalds
8636df94ec perf tools changes for v6.1: 2nd batch
- Use BPF CO-RE (Compile Once, Run Everywhere) to support old kernels
   when using bperf (perf BPF based counters) with cgroups.
 
 - Support HiSilicon PCIe Performance Monitoring Unit (PMU), that
   monitors bandwidth, latency, bus utilization and buffer occupancy.
 
   Documented in Documentation/admin-guide/perf/hisi-pcie-pmu.rst.
 
 - User space tasks can migrate between CPUs, so when tracing selected
   CPUs, system-wide sideband is still needed, fix it in the setup of
   Intel PT on hybrid systems.
 
 - Fix metricgroups title message in 'perf list', it should state that
   the metrics groups are to be used with the '-M' option, not '-e'.
 
 - Sync the msr-index.h copy with the kernel sources, adding support
   for using "AMD64_TSC_RATIO" in filter expressions in 'perf trace' as
   well as decoding it when printing the MSR tracepoint arguments.
 
 - Fix program header size and alignment when generating a JIT ELF
   in 'perf inject'.
 
 - Add multiple new Intel PT 'perf test' entries, including a jitdump one.
 
 - Fix the 'perf test' entries for 'perf stat' CSV and JSON output when
   running on PowerPC due to an invalid topology number in that arch.
 
 - Fix the 'perf test' for arm_coresight failures on the ARM Juno system.
 
 - Fix the 'perf test' attr entry for PERF_FORMAT_LOST, adding this option
   to the or expression expected in the intercepted perf_event_open() syscall.
 
 - Add missing condition flags ('hs', 'lo', 'vc', 'vs') for arm64 in the 'perf
   annotate' asm parser.
 
 - Fix 'perf mem record -C' option processing, it was being chopped up
   when preparing the underlying 'perf record -e mem-events' and thus being
   ignored, requiring using '-- -C CPUs' as a workaround.
 
 - Improvements and tidy ups for 'perf test' shell infra.
 
 - Fix Intel PT information printing segfault in uClibc, where a NULL
   format was being passed to fprintf.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-for-v6.1-2-2022-10-16' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull more perf tools updates from Arnaldo Carvalho de Melo:

 - Use BPF CO-RE (Compile Once, Run Everywhere) to support old kernels
   when using bperf (perf BPF based counters) with cgroups.

 - Support HiSilicon PCIe Performance Monitoring Unit (PMU), that
   monitors bandwidth, latency, bus utilization and buffer occupancy.

   Documented in Documentation/admin-guide/perf/hisi-pcie-pmu.rst.

 - User space tasks can migrate between CPUs, so when tracing selected
   CPUs, system-wide sideband is still needed, fix it in the setup of
   Intel PT on hybrid systems.

 - Fix metricgroups title message in 'perf list', it should state that
   the metrics groups are to be used with the '-M' option, not '-e'.

 - Sync the msr-index.h copy with the kernel sources, adding support for
   using "AMD64_TSC_RATIO" in filter expressions in 'perf trace' as well
   as decoding it when printing the MSR tracepoint arguments.

 - Fix program header size and alignment when generating a JIT ELF in
   'perf inject'.

 - Add multiple new Intel PT 'perf test' entries, including a jitdump
   one.

 - Fix the 'perf test' entries for 'perf stat' CSV and JSON output when
   running on PowerPC due to an invalid topology number in that arch.

 - Fix the 'perf test' for arm_coresight failures on the ARM Juno
   system.

 - Fix the 'perf test' attr entry for PERF_FORMAT_LOST, adding this
   option to the or expression expected in the intercepted
   perf_event_open() syscall.

 - Add missing condition flags ('hs', 'lo', 'vc', 'vs') for arm64 in the
   'perf annotate' asm parser.

 - Fix 'perf mem record -C' option processing, it was being chopped up
   when preparing the underlying 'perf record -e mem-events' and thus
   being ignored, requiring using '-- -C CPUs' as a workaround.

 - Improvements and tidy ups for 'perf test' shell infra.

 - Fix Intel PT information printing segfault in uClibc, where a NULL
   format was being passed to fprintf.

* tag 'perf-tools-for-v6.1-2-2022-10-16' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (23 commits)
  tools arch x86: Sync the msr-index.h copy with the kernel sources
  perf auxtrace arm64: Add support for parsing HiSilicon PCIe Trace packet
  perf auxtrace arm64: Add support for HiSilicon PCIe Tune and Trace device driver
  perf auxtrace arm: Refactor event list iteration in auxtrace_record__init()
  perf tests stat+json_output: Include sanity check for topology
  perf tests stat+csv_output: Include sanity check for topology
  perf intel-pt: Fix system_wide dummy event for hybrid
  perf intel-pt: Fix segfault in intel_pt_print_info() with uClibc
  perf test: Fix attr tests for PERF_FORMAT_LOST
  perf test: test_intel_pt.sh: Add 9 tests
  perf inject: Fix GEN_ELF_TEXT_OFFSET for jit
  perf test: test_intel_pt.sh: Add jitdump test
  perf test: test_intel_pt.sh: Tidy some alignment
  perf test: test_intel_pt.sh: Print a message when skipping kernel tracing
  perf test: test_intel_pt.sh: Tidy some perf record options
  perf test: test_intel_pt.sh: Fix return checking again
  perf: Skip and warn on unknown format 'configN' attrs
  perf list: Fix metricgroups title message
  perf mem: Fix -C option behavior for perf mem record
  perf annotate: Add missing condition flags for arm64
  ...
2022-10-16 15:14:29 -07:00
Linus Torvalds
2df76606db Kbuild fixes for v6.1
- Fix CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y compile error for
    the combination of Clang >= 14 and GAS <= 2.35.
 
  - Drop vmlinux.bz2 from the rpm package as it just annoyingly increased
    the package size.
 
  - Fix modpost error under build environments using musl.
 
  - Make *.ll files keep value names for easier debugging
 
  - Fix single directory build
 
  - Prevent RISC-V from selecting the broken DWARF5 support when Clang
    and GAS are used together.
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Merge tag 'kbuild-fixes-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y compile error for the
   combination of Clang >= 14 and GAS <= 2.35.

 - Drop vmlinux.bz2 from the rpm package as it just annoyingly increased
   the package size.

 - Fix modpost error under build environments using musl.

 - Make *.ll files keep value names for easier debugging

 - Fix single directory build

 - Prevent RISC-V from selecting the broken DWARF5 support when Clang
   and GAS are used together.

* tag 'kbuild-fixes-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  lib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5
  kbuild: fix single directory build
  kbuild: add -fno-discard-value-names to cmd_cc_ll_c
  scripts/clang-tools: Convert clang-tidy args to list
  modpost: put modpost options before argument
  kbuild: Stop including vmlinux.bz2 in the rpm's
  Kconfig.debug: add toolchain checks for DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
  Kconfig.debug: simplify the dependency of DEBUG_INFO_DWARF4/5
2022-10-16 11:12:22 -07:00