Josh Poimboeuf 03bb66ede7 objtool, regulator: rk808: Remove potential undefined behavior in rk806_set_mode_dcdc() ...

[ Upstream commit 29c578c848 ]

If 'ctr_bit' is negative, the shift counts become negative, causing a
shift of bounds and undefined behavior.

Presumably that's not possible in normal operation, but the code
generation isn't optimal.  And undefined behavior should be avoided
regardless.

Improve code generation and remove the undefined behavior by converting
the signed variables to unsigned.

Fixes the following warning with an UBSAN kernel:

  vmlinux.o: warning: objtool: rk806_set_mode_dcdc() falls through to next function rk806_get_mode_dcdc()
  vmlinux.o: warning: objtool: .text.rk806_set_mode_dcdc: unexpected end of section

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/2023abcddf3f524ba478d64339996f25dc4097d2.1742852847.git.jpoimboe@kernel.org
Closes: https://lore.kernel.org/oe-kbuild-all/202503182350.52KeHGD4-lkp@intel.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-05-02 07:59:20 +02:00

..

88pg86x.c

…

88pm800-regulator.c

…

88pm886-regulator.c

regulator: Add regulators driver for Marvell 88PM886 PMIC

2024-06-28 15:41:11 +01:00

88pm8607.c

…

aat2870-regulator.c

…

ab8500-ext.c

…

ab8500.c

…

act8865-regulator.c

regulator: Use of_property_read_bool()

2024-08-01 12:50:11 +01:00

act8945a-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

ad5398.c

…

anatop-regulator.c

…

arizona-ldo1.c

regulator: arizona-ldo1: Convert to platform remove callback returning void

2023-12-11 12:54:25 +00:00

arizona-micsupp.c

…

as3711-regulator.c

…

as3722-regulator.c

…

atc260x-regulator.c

regulator: Use bitfield values for range selectors

2023-07-25 12:14:27 +01:00

aw37503-regulator.c

regulator: aw37503: Switch back to use struct i2c_driver's .probe()

2023-08-24 21:43:28 +01:00

axp20x-regulator.c

regulator: axp20x: AXP717: set ramp_delay

2024-12-19 18:13:14 +01:00

bcm590xx-regulator.c

…

bd718x7-regulator.c

regulator: bd718x7: Use scoped device node handling to simplify error paths

2024-08-14 18:21:42 +01:00

bd9571mwv-regulator.c

regulator: bd9571mwv: Convert to platform remove callback returning void

2023-12-11 12:54:26 +00:00

bd9576-regulator.c

regulator: bd9576: Constify struct linear_range

2024-08-06 15:24:01 +01:00

bd71815-regulator.c

regulator: bd71815: fix ramp values

2024-06-12 16:19:49 +01:00

bd71828-regulator.c

regulator: bd71828: Don't overwrite runtime voltages

2024-05-16 13:36:41 +01:00

bd96801-regulator.c

regulator: bd96801: Use scoped device node handling to simplify error paths

2024-08-14 18:21:43 +01:00

core.c

regulator: check that dummy regulator has been probed before using it

2025-03-28 22:03:29 +01:00

cpcap-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

cros-ec-regulator.c

…

da903x-regulator.c

regulator: Fix typos in the comment

2024-09-10 12:40:38 +01:00

da9052-regulator.c

regulator: da9052: Constify static data

2024-09-10 12:44:03 +01:00

da9055-regulator.c

regulator: da9055: Constify static data

2024-09-10 12:44:04 +01:00

da9062-regulator.c

regulator: da9062: Annotate struct da9062_regulators with __counted_by

2023-10-09 13:14:23 +01:00

da9063-regulator.c

regulator: Few constifications of static data

2024-09-11 11:20:37 +01:00

da9121-regulator.c

regulator: da9121: Constify static data

2024-09-10 12:44:06 +01:00

da9121-regulator.h

…

da9210-regulator.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

da9210-regulator.h

…

da9211-regulator.c

regulator: da9211: Constify struct regulator_desc

2024-09-09 18:27:02 +01:00

da9211-regulator.h

…

db8500-prcmu.c

regulator: db8500-prcmu: Convert to platform remove callback returning void

2023-12-11 12:54:27 +00:00

dbx500-prcmu.c

…

dbx500-prcmu.h

…

devres.c

regulator: Unify "negative error number" terminology in comments

2024-08-29 14:20:30 +01:00

dummy.c

regulator: dummy: force synchronous probing

2025-03-28 22:03:29 +01:00

dummy.h

…

event.c

regulator: event: Ensure atomicity for sequence number

2024-01-04 20:02:06 +00:00

fan53555.c

regulator: Fix typos in the comment

2024-09-10 12:40:38 +01:00

fan53880.c

…

fixed-helper.c

regulator: fixed-helper: Add missing "Return" kerneldoc section

2024-08-29 14:20:28 +01:00

fixed.c

regulator: Unify "negative error number" terminology in comments

2024-08-29 14:20:30 +01:00

gpio-regulator.c

…

helpers.c

regulator: update some comments ([gs]et_voltage_vsel vs [gs]et_voltage_sel)

2024-09-13 14:57:08 +01:00

hi655x-regulator.c

…

hi6421-regulator.c

regulator: hi6421: Constify static data

2024-09-10 12:44:07 +01:00

hi6421v530-regulator.c

regulator: hi6421v530: Use container_of and constify static data

2024-09-10 12:44:17 +01:00

hi6421v600-regulator.c

regulator: hi6421v600: Constify static data

2024-09-10 12:44:08 +01:00

internal.h

regulator: Split up _regulator_get()

2024-09-13 17:39:48 +01:00

irq_helpers.c

regulator: Unify "negative error number" terminology in comments

2024-08-29 14:20:30 +01:00

isl6271a-regulator.c

…

isl9305.c

regulator: isl9305: convert to use maple tree register cache

2024-03-25 00:48:18 +00:00

Kconfig

regulator: sm5703: Remove because it is unused and fails to build

2024-09-13 19:08:14 +01:00

lm363x-regulator.c

…

lochnagar-regulator.c

regulator: Use device_get_match_data()

2023-10-17 21:38:48 +01:00

lp872x.c

regulator: lp872x: Fix Wvoid-pointer-to-enum-cast warning

2023-08-10 15:44:46 +01:00

lp873x-regulator.c

regulator: lp873x: Use bitfield helpers

2024-02-15 13:41:11 +00:00

lp3971.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

lp3972.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

lp8755.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

lp8788-buck.c

regulator: lp8788-buck: fix copy and paste bug in lp8788_dvs_gpio_request()

2024-03-06 14:03:32 +00:00

lp8788-ldo.c

…

lp87565-regulator.c

regulator: lp87565: Use bitfield helpers

2024-02-15 13:41:10 +00:00

ltc3589.c

regulator: ltc3589: Convert enum->pointer for data in the match tables

2023-09-11 01:31:25 +01:00

ltc3676.c

…

Makefile

regulator: sm5703: Remove because it is unused and fails to build

2024-09-13 19:08:14 +01:00

max1586.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

max5970-regulator.c

regulator: Fix typos in the comment

2024-09-10 12:40:38 +01:00

max8649.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

max8660.c

…

max8893.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

max8907-regulator.c

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max8925-regulator.c

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max8952.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

max8973-regulator.c

regulator: max8973: Use irq_get_trigger_type() helper

2024-09-13 14:57:07 +01:00

max8997-regulator.c

regulator: max8997: Use scoped device node handling to simplify error paths

2024-08-14 18:21:44 +01:00

max8998.c

regulator: max8998: Convert to GPIO descriptors

2024-02-26 13:46:37 +00:00

max14577-regulator.c

…

max20086-regulator.c

regulator: max20086: Make similar OF and ID table

2023-09-11 01:31:27 +01:00

max20411-regulator.c

regulator: add missing MODULE_DESCRIPTION() macro

2024-06-10 15:39:29 +01:00

max77503-regulator.c

regulator: max77503: remove unused struct 'max77503_dev'

2024-05-29 11:24:22 +01:00

max77541-regulator.c

regulator: Use bitfield values for range selectors

2023-07-25 12:14:27 +01:00

max77620-regulator.c

…

max77650-regulator.c

regulator: max77650: Use container_of and constify static data

2024-09-10 12:44:18 +01:00

max77686-regulator.c

…

max77693-regulator.c

…

max77802-regulator.c

regulator: Unify "negative error number" terminology in comments

2024-08-29 14:20:30 +01:00

max77826-regulator.c

regulator: max77826: Constify static data

2024-09-10 12:44:11 +01:00

max77857-regulator.c

regulator: max77857: Make max77857_id static

2024-08-01 12:50:10 +01:00

mc13xxx-regulator-core.c

…

mc13xxx.h

regulator: mc13xxx: Annotate struct mc13xxx_regulator_priv with __counted_by

2023-09-22 19:01:38 +01:00

mc13783-regulator.c

…

mc13892-regulator.c

…

mcp16502.c

regulator: mcp16502: Add supplier for regulators

2024-08-13 12:41:44 +01:00

mp886x.c

regulator: mp886x: Make similar OF and ID table

2023-09-11 01:31:26 +01:00

mp5416.c

regulator: mp5416: Constify struct regulator_desc

2024-09-09 18:27:01 +01:00

mp8859.c

regulator: mp8859: Implement set_current_limit()

2024-02-26 13:46:55 +00:00

mpq7920.c

regulator: mpq7920: Remove redundant of_match_ptr() macro

2023-08-09 12:52:44 +01:00

mpq7920.h

…

mt6311-regulator.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

mt6311-regulator.h

…

mt6315-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

mt6323-regulator.c

…

mt6331-regulator.c

…

mt6332-regulator.c

…

mt6357-regulator.c

regulator: update some comments ([gs]et_voltage_vsel vs [gs]et_voltage_sel)

2024-09-13 14:57:08 +01:00

mt6358-regulator.c

regulator: Merge up pending fix

2023-10-30 13:14:27 +00:00

mt6359-regulator.c

regulator: Remove duplicated include in mt6359-regulator.c

2023-07-18 15:11:31 +01:00

mt6360-regulator.c

regulator: mt6360: De-capitalize devicetree regulator subnodes

2024-04-09 16:22:59 +01:00

mt6370-regulator.c

…

mt6380-regulator.c

…

mt6397-regulator.c

…

mtk-dvfsrc-regulator.c

regulator: mtk-dvfsrc: Constify static data

2024-09-10 12:44:12 +01:00

of_regulator.c

regulator: of: Implement the unwind path of of_regulator_match()

2025-02-08 09:57:10 +01:00

palmas-regulator.c

regulator: palmas: remove redundant initialization of pointer pdata

2023-11-13 01:26:31 +00:00

pbias-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

pca9450-regulator.c

regulator: pca9450: Fix enable register for LDO5

2025-04-10 14:39:12 +02:00

pcap-regulator.c

regulator: pcap: Constify static data

2024-09-10 12:44:13 +01:00

pcf50633-regulator.c

…

pf8x00-regulator.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

pfuze100-regulator.c

regulator: pfuze100: Constify static data

2024-09-10 12:44:14 +01:00

pv88060-regulator.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

pv88060-regulator.h

…

pv88080-regulator.c

regulator: pv880x0: Simplify probe()

2023-09-11 01:30:10 +01:00

pv88080-regulator.h

…

pv88090-regulator.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

pv88090-regulator.h

…

pwm-regulator.c

regulator: pwm-regulator: Use dev_err_probe() for error paths in .probe()

2024-02-19 16:59:34 +00:00

qcom_rpm-regulator.c

regulator: Use device_get_match_data()

2023-10-17 21:38:48 +01:00

qcom_smd-regulator.c

regulator: qcom-smd: make smd_vreg_rpm static

2024-12-05 14:01:24 +01:00

qcom_spmi-regulator.c

regulator: Fix typos in the comment

2024-09-10 12:40:38 +01:00

qcom_usb_vbus-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

qcom-labibb-regulator.c

regulator: Use device_get_match_data()

2023-10-17 21:38:48 +01:00

qcom-pm8008-regulator.c

regulator: add pm8008 pmic regulator driver

2024-06-13 18:42:21 +01:00

qcom-refgen-regulator.c

regulator: qcom-refgen: Constify static data

2024-09-10 12:44:15 +01:00

qcom-rpmh-regulator.c

regulator: qcom-rpmh: Update ranges for FTSMPS525

2024-12-14 20:04:07 +01:00

raa215300.c

regulator: raa215300: Add missing blank space

2023-08-18 16:21:44 +01:00

rc5t583-regulator.c

regulator: rc5t583: Drop useless header

2023-08-08 15:23:12 +01:00

regnl.h

regulator: event: Add regulator netlink event support

2023-12-06 13:14:54 +00:00

renesas-usb-vbus-regulator.c

regulator: Add Renesas RZ/G2L USB VBUS regulator driver

2024-06-26 18:17:06 +01:00

rk808-regulator.c

objtool, regulator: rk808: Remove potential undefined behavior in rk806_set_mode_dcdc()

2025-05-02 07:59:20 +02:00

rn5t618-regulator.c

…

rohm-regulator.c

regulator: rohm-regulator: warn if unsupported voltage is set

2024-05-16 13:36:42 +01:00

rpi-panel-attiny-regulator.c

regulator: rpi-panel-attiny: convert to use maple tree register cache

2024-03-25 00:48:27 +00:00

rt4801-regulator.c

…

rt4803.c

…

rt4831-regulator.c

regulator: add missing MODULE_DESCRIPTION() macro

2024-06-10 15:39:29 +01:00

rt5033-regulator.c

…

rt5120-regulator.c

regulator: rt5120: Convert comma to semicolon

2024-07-29 01:19:05 +01:00

rt5190a-regulator.c

…

rt5739.c

regulator: rt5739: Add DID check and compatible for rt5733

2023-07-09 22:48:53 +01:00

rt5759-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

rt6160-regulator.c

…

rt6190-regulator.c

…

rt6245-regulator.c

…

rtmv20-regulator.c

regulator: rtmv20: convert to use maple tree register cache

2024-03-25 00:48:23 +00:00

rtq2134-regulator.c

…

rtq2208-regulator.c

regulator: rtq2208: Fix uninitialized use of regulator_config

2024-10-25 14:10:19 +01:00

rtq6752-regulator.c

regulator: rtq6752: convert to use maple tree register cache

2024-03-25 00:48:24 +00:00

s2mpa01.c

regulator: s2mpa01: Drop useless header

2023-08-08 15:23:11 +01:00

s2mps11.c

regulator: s2mps11: use scoped memory allocation to simplify probe

2024-08-22 17:52:31 +01:00

s5m8767.c

regulator: s5m8767: Use scoped device node handling to simplify error paths

2024-08-14 18:21:45 +01:00

sc2731-regulator.c

…

scmi-regulator.c

regulator: scmi: Simplify with scoped for each OF child loop

2024-08-14 18:21:48 +01:00

sky81452-regulator.c

…

slg51000-regulator.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

slg51000-regulator.h

…

stm32-booster.c

regulator: Use device_get_match_data()

2023-10-17 21:38:48 +01:00

stm32-pwr.c

regulator: stm32-pwr: add support of STM32MP13

2024-05-27 01:32:22 +01:00

stm32-vrefbuf.c

regulator: stm32-vrefbuf: Convert to platform remove callback returning void

2023-12-11 12:54:28 +00:00

stpmic1_regulator.c

regulator: stpmic1: Fix kernel-doc notation warnings

2023-11-13 01:26:32 +00:00

stw481x-vmmc.c

…

sun20i-regulator.c

regulator: sun20i: Add Allwinner D1 LDOs driver

2024-05-09 17:44:01 +02:00

sy7636a-regulator.c

…

sy8106a-regulator.c

regulator: Drop explicit initialization of struct i2c_device_id::driver_data to 0

2024-05-27 01:32:50 +01:00

sy8824x.c

regulator: sy8824x: Make similar OF and ID table

2023-09-11 01:31:24 +01:00

sy8827n.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

ti-abb-regulator.c

regulator: ti-abb: don't use devm_platform_ioremap_resource_byname for shared interrupt register

2024-01-23 15:05:13 +00:00

tps6105x-regulator.c

…

tps6286x-regulator.c

regulator: add missing MODULE_DESCRIPTION() macro

2024-06-10 15:39:29 +01:00

tps6287x-regulator.c

regulator: tps6287x: Constify struct regulator_desc

2024-09-09 21:08:43 +01:00

tps6507x-regulator.c

…

tps6524x-regulator.c

…

tps6586x-regulator.c

…

tps6594-regulator.c

regulator: tps6594-regulator: Fix the number of irqs for TPS65224 and TPS6594

2024-06-04 13:22:18 +01:00

tps51632-regulator.c

regulator: tps51632: convert to use maple tree register cache

2024-03-25 00:48:25 +00:00

tps62360-regulator.c

regulator: tps62360: convert to use maple tree register cache

2024-03-25 00:48:26 +00:00

tps65023-regulator.c

regulator: tps65023: Constify static data

2024-09-10 12:44:09 +01:00

tps65086-regulator.c

regulator: tps65086: Select dedicated regulator config for chip variant

2023-08-18 22:06:52 +01:00

tps65090-regulator.c

…

tps65132-regulator.c

regulator: tps65132: Add of_match table

2024-03-25 19:28:27 +00:00

tps65217-regulator.c

…

tps65218-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

tps65219-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

tps65910-regulator.c

regulator: tps65910: Drop useless header

2023-08-08 15:23:10 +01:00

tps65912-regulator.c

…

tps68470-regulator.c

…

twl6030-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

twl-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

uniphier-regulator.c

regulator: uniphier: Convert to platform remove callback returning void

2023-12-11 12:54:29 +00:00

userspace-consumer.c

regulator: userspace-consumer: quiet device deferral

2024-06-24 13:39:19 +01:00

vctrl-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

vexpress-regulator.c

regulator: Explicitly include correct DT includes

2023-07-14 20:52:54 +01:00

virtual.c

regulator: virtual: Convert to platform remove callback returning void

2023-12-11 12:54:31 +00:00

vqmmc-ipq4019-regulator.c

regulator: vqmmc-ipq4019: fix module autoloading

2024-04-10 18:48:59 +01:00

wm831x-dcdc.c

…

wm831x-isink.c

regulator: wm831x-isink: Convert comma to semicolon

2024-07-29 01:19:04 +01:00

wm831x-ldo.c

…

wm8350-regulator.c

regulator: wm8350: Convert to platform remove callback returning void

2023-12-11 12:54:32 +00:00

wm8400-regulator.c

regulator: wm8400: Constify struct regulator_desc

2024-09-09 21:08:42 +01:00

wm8994-regulator.c

…