Dmitry Baryshkov 524bb1da78 PM: core: keep irq flags in device_pm_check_callbacks() ... The function device_pm_check_callbacks() can be called under the spin lock (in the reported case it happens from genpd_add_device() -> dev_pm_domain_set(), when the genpd uses spinlocks rather than mutexes. However this function uncoditionally uses spin_lock_irq() / spin_unlock_irq(), thus not preserving the CPU flags. Use the irqsave/irqrestore instead. The backtrace for the reference: [ 2.752010] ------------[ cut here ]------------ [ 2.756769] raw_local_irq_restore() called with IRQs enabled [ 2.762596] WARNING: CPU: 4 PID: 1 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x34/0x50 [ 2.772338] Modules linked in: [ 2.775487] CPU: 4 PID: 1 Comm: swapper/0 Tainted: G S 5.17.0-rc6-00384-ge330d0d82eff-dirty #684 [ 2.781384] Freeing initrd memory: 46024K [ 2.785839] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 2.785841] pc : warn_bogus_irq_restore+0x34/0x50 [ 2.785844] lr : warn_bogus_irq_restore+0x34/0x50 [ 2.785846] sp : ffff80000805b7d0 [ 2.785847] x29: ffff80000805b7d0 x28: 0000000000000000 x27: 0000000000000002 [ 2.785850] x26: ffffd40e80930b18 x25: ffff7ee2329192b8 x24: ffff7edfc9f60800 [ 2.785853] x23: ffffd40e80930b18 x22: ffffd40e80930d30 x21: ffff7edfc0dffa00 [ 2.785856] x20: ffff7edfc09e3768 x19: 0000000000000000 x18: ffffffffffffffff [ 2.845775] x17: 6572206f74206465 x16: 6c696166203a3030 x15: ffff80008805b4f7 [ 2.853108] x14: 0000000000000000 x13: ffffd40e809550b0 x12: 00000000000003d8 [ 2.860441] x11: 0000000000000148 x10: ffffd40e809550b0 x9 : ffffd40e809550b0 [ 2.867774] x8 : 00000000ffffefff x7 : ffffd40e809ad0b0 x6 : ffffd40e809ad0b0 [ 2.875107] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000 [ 2.882440] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff7edfc03a8000 [ 2.889774] Call trace: [ 2.892290] warn_bogus_irq_restore+0x34/0x50 [ 2.896770] _raw_spin_unlock_irqrestore+0x94/0xa0 [ 2.901690] genpd_unlock_spin+0x20/0x30 [ 2.905724] genpd_add_device+0x100/0x2d0 [ 2.909850] __genpd_dev_pm_attach+0xa8/0x23c [ 2.914329] genpd_dev_pm_attach_by_id+0xc4/0x190 [ 2.919167] genpd_dev_pm_attach_by_name+0x3c/0xd0 [ 2.924086] dev_pm_domain_attach_by_name+0x24/0x30 [ 2.929102] psci_dt_attach_cpu+0x24/0x90 [ 2.933230] psci_cpuidle_probe+0x2d4/0x46c [ 2.937534] platform_probe+0x68/0xe0 [ 2.941304] really_probe.part.0+0x9c/0x2fc [ 2.945605] __driver_probe_device+0x98/0x144 [ 2.950085] driver_probe_device+0x44/0x15c [ 2.954385] __device_attach_driver+0xb8/0x120 [ 2.958950] bus_for_each_drv+0x78/0xd0 [ 2.962896] __device_attach+0xd8/0x180 [ 2.966843] device_initial_probe+0x14/0x20 [ 2.971144] bus_probe_device+0x9c/0xa4 [ 2.975092] device_add+0x380/0x88c [ 2.978679] platform_device_add+0x114/0x234 [ 2.983067] platform_device_register_full+0x100/0x190 [ 2.988344] psci_idle_init+0x6c/0xb0 [ 2.992113] do_one_initcall+0x74/0x3a0 [ 2.996060] kernel_init_freeable+0x2fc/0x384 [ 3.000543] kernel_init+0x28/0x130 [ 3.004132] ret_from_fork+0x10/0x20 [ 3.007817] irq event stamp: 319826 [ 3.011404] hardirqs last enabled at (319825): [<ffffd40e7eda0268>] __up_console_sem+0x78/0x84 [ 3.020332] hardirqs last disabled at (319826): [<ffffd40e7fd6d9d8>] el1_dbg+0x24/0x8c [ 3.028458] softirqs last enabled at (318312): [<ffffd40e7ec90410>] _stext+0x410/0x588 [ 3.036678] softirqs last disabled at (318299): [<ffffd40e7ed1bf68>] __irq_exit_rcu+0x158/0x174 [ 3.045607] ---[ end trace 0000000000000000 ]--- Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2022-03-10 19:40:15 +01:00
..
firmware_loader	firmware_loader: move firmware sysctl to its own files	2022-01-22 08:33:35 +02:00
power	PM: core: keep irq flags in device_pm_check_callbacks()	2022-03-10 19:40:15 +01:00
regmap	regmap-irq: Update interrupt clear register for proper reset	2022-02-17 15:33:15 +00:00
test	driver core: Simplify async probe test code by using ktime_ms_delta()	2021-12-29 10:57:22 +01:00
arch_numa.c	mm: percpu: add generic pcpu_populate_pte() function	2022-01-20 08:52:52 +02:00
arch_topology.c	arch_topology: Remove unused topology_set_thermal_pressure() and related	2021-11-23 15:10:26 +05:30
attribute_container.c	driver core: attribute_container: fix W=1 warnings	2021-05-14 13:37:10 +02:00
auxiliary.c	Documentation/auxiliary_bus: Move the text into the code	2021-12-03 16:41:50 +01:00
base.h	software nodes: Split software_node_notify()	2021-07-16 19:17:05 +02:00
bus.c	kobject: remove kset from struct kset_uevent_ops callbacks	2021-12-28 11:26:18 +01:00
cacheinfo.c	cacheinfo: clear cache_leaves(cpu) in free_cache_attributes()	2021-07-21 17:29:40 +02:00
class.c	drivers: base: fix some kernel-doc markups	2020-11-09 18:56:49 +01:00
component.c	component: do not leave master devres group open after bind	2021-10-21 13:01:56 +02:00
container.c
core.c	Rework of the MSI interrupt infrastructure:	2022-01-13 09:05:29 -08:00
cpu.c	driver: base: Prefer unsigned int to bare use of unsigned	2021-07-21 17:30:09 +02:00
dd.c	driver core: Free DMA range map when device is released	2022-02-22 08:40:02 +01:00
devcoredump.c	devcoredump: remove contact information	2021-06-04 15:05:44 +02:00
devres.c	devres: Enable trace events	2021-06-15 17:14:36 +02:00
devtmpfs.c	devtmpfs regression fix: reconfigure on each mount	2022-01-17 09:40:29 +02:00
driver.c
firmware.c
hypervisor.c
init.c	driver core: auxiliary bus: Fix calling stage for auxiliary bus init	2021-02-11 08:43:03 +01:00
isa.c	bus: Make remove callback return void	2021-07-21 11:53:42 +02:00
Kconfig	devtmpfs: mount with noexec and nosuid	2021-12-30 13:54:42 +01:00
Makefile	mm/memory_hotplug: remove CONFIG_MEMORY_HOTPLUG_SPARSE	2021-11-06 13:30:42 -07:00
map.c	driver: base: Prefer unsigned int to bare use of unsigned	2021-07-21 17:30:09 +02:00
memory.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
module.c
node.c	x86/sgx: Add an attribute for the amount of SGX memory in a NUMA node	2021-12-09 07:02:22 -08:00
pinctrl.c
platform-msi.c	platform-msi: Simplify platform device MSI code	2021-12-16 22:22:19 +01:00
platform.c	driver core: platform: document registration-failure requirement	2021-12-22 13:59:33 +01:00
property.c	Char/Misc and other driver changes for 5.17-rc1	2022-01-14 16:02:28 +01:00
soc.c	soc: fix comment for freeing soc_dev_attr	2020-12-09 19:46:31 +01:00
swnode.c	software node: fix wrong node passed to find nargs_prop	2021-12-22 18:26:18 +01:00
syscore.c
topology.c	topology/sysfs: rework book and drawer topology ifdefery	2021-12-03 15:58:27 +01:00
trace.c	devres: Enable trace events	2021-06-15 17:14:36 +02:00
trace.h	devres: Enable trace events	2021-06-15 17:14:36 +02:00
transport_class.c