Shawn Guo 6b0313c2fa cpuidle: psci: Iterate backwards over list in psci_pd_remove() ... In case that psci_pd_init_topology() fails for some reason, psci_pd_remove() will be responsible for deleting provider and removing genpd from psci_pd_providers list. There will be a failure when removing the cluster PD, because the cpu (child) PDs haven't been removed. [ 0.050232] CPUidle PSCI: init PM domain cpu0 [ 0.050278] CPUidle PSCI: init PM domain cpu1 [ 0.050329] CPUidle PSCI: init PM domain cpu2 [ 0.050370] CPUidle PSCI: init PM domain cpu3 [ 0.050422] CPUidle PSCI: init PM domain cpu-cluster0 [ 0.050475] PM: genpd_remove: unable to remove cpu-cluster0 [ 0.051412] PM: genpd_remove: removed cpu3 [ 0.051449] PM: genpd_remove: removed cpu2 [ 0.051499] PM: genpd_remove: removed cpu1 [ 0.051546] PM: genpd_remove: removed cpu0 Fix the problem by iterating the provider list reversely, so that parent PD gets removed after child's PDs like below. [ 0.029052] CPUidle PSCI: init PM domain cpu0 [ 0.029076] CPUidle PSCI: init PM domain cpu1 [ 0.029103] CPUidle PSCI: init PM domain cpu2 [ 0.029124] CPUidle PSCI: init PM domain cpu3 [ 0.029151] CPUidle PSCI: init PM domain cpu-cluster0 [ 0.029647] PM: genpd_remove: removed cpu0 [ 0.029666] PM: genpd_remove: removed cpu1 [ 0.029690] PM: genpd_remove: removed cpu2 [ 0.029714] PM: genpd_remove: removed cpu3 [ 0.029738] PM: genpd_remove: removed cpu-cluster0 Fixes: a65a397f24 ("cpuidle: psci: Add support for PM domains by using genpd") Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: 5.10+ <stable@vger.kernel.org> # 5.10+ Signed-off-by: Rafael J. Wysocki <rjw@rjwysocki.net>		2023-03-07 14:04:13 +01:00
..
governors	cpuidle: teo: Introduce util-awareness	2023-01-10 20:53:22 +01:00
Kconfig	cpuidle-haltpoll: select haltpoll governor	2023-01-13 20:50:46 +01:00
Kconfig.arm	cpuidle: psci: Do not suspend topology CPUs on PREEMPT_RT	2023-02-13 17:15:42 +01:00
Kconfig.mips	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Kconfig.powerpc	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Kconfig.riscv	cpuidle: Add RISC-V SBI CPU idle driver	2022-03-10 09:29:51 -08:00
Makefile	cpuidle: Add RISC-V SBI CPU idle driver	2022-03-10 09:29:51 -08:00
coupled.c	cpuidle: coupled: Drop duplicate word from a comment	2022-08-31 20:54:01 +02:00
cpuidle-arm.c	cpuidle, arch: Mark all ct_cpuidle_enter() callers __cpuidle	2023-01-13 11:48:17 +01:00
cpuidle-at91.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2)	2022-06-10 14:51:35 +02:00
cpuidle-big_little.c	cpuidle, arch: Mark all ct_cpuidle_enter() callers __cpuidle	2023-01-13 11:48:17 +01:00
cpuidle-calxeda.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
cpuidle-clps711x.c	cpuidle: clps711x: convert to devm_platform_ioremap_resource()	2019-12-20 10:04:27 +01:00
cpuidle-cps.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
cpuidle-exynos.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
cpuidle-haltpoll.c	cpuidle-haltpoll: Replace default_idle() with arch_cpu_idle()	2023-01-20 17:33:52 +01:00
cpuidle-kirkwood.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2)	2022-06-10 14:51:35 +02:00
cpuidle-mvebu-v7.c	cpuidle: mvebu: Fix duplicate flags assignment	2023-01-18 12:03:54 +01:00
cpuidle-powernv.c	powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state	2022-12-06 23:18:19 +11:00
cpuidle-psci-domain.c	cpuidle: psci: Iterate backwards over list in psci_pd_remove()	2023-03-07 14:04:13 +01:00
cpuidle-psci.c	Power management updates for 6.3-rc1	2023-02-21 12:13:58 -08:00
cpuidle-psci.h	cpuidle: Factor-out power domain related code from PSCI domain driver	2022-03-10 09:29:44 -08:00
cpuidle-pseries.c	powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state	2022-12-06 23:18:19 +11:00
cpuidle-qcom-spm.c	ARM: SoC drivers for 6.3	2023-02-27 10:04:49 -08:00
cpuidle-riscv-sbi.c	cpuidle, arch: Mark all ct_cpuidle_enter() callers __cpuidle	2023-01-13 11:48:17 +01:00
cpuidle-tegra.c	cpuidle, arch: Mark all ct_cpuidle_enter() callers __cpuidle	2023-01-13 11:48:17 +01:00
cpuidle-ux500.c	mfd/cpuidle: ux500: Rename driver symbol	2021-08-16 13:42:34 +01:00
cpuidle-zynq.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
cpuidle.c	cpuidle: Fix poll_idle() noinstr annotation	2023-01-31 15:01:47 +01:00
cpuidle.h	cpuidle: allow governor switch on cpuidle_register_driver()	2019-09-11 17:36:30 +02:00
driver.c	cpuidle: driver: Update microsecond values of state parameters as needed	2023-02-13 16:08:44 +01:00
dt_idle_genpd.c	cpuidle: Factor-out power domain related code from PSCI domain driver	2022-03-10 09:29:44 -08:00
dt_idle_genpd.h	cpuidle: Factor-out power domain related code from PSCI domain driver	2022-03-10 09:29:44 -08:00
dt_idle_states.c	cpuidle, dt: Push RCU-idle into driver	2023-01-13 11:48:00 +01:00
dt_idle_states.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
governor.c	cpuidle: Remove redundant check in cpuidle_switch_governor()	2022-09-03 20:14:51 +02:00
poll_state.c	cpuidle: Fix poll_idle() noinstr annotation	2023-01-31 15:01:47 +01:00
sysfs.c	cpuidle: sysfs: make kobj_type structures constant	2023-02-09 21:04:01 +01:00