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| author | Qingliang Li <[email protected]> | 2024-03-01 09:26:57 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2024-03-05 11:39:05 +0000 |
| commit | e7a7681c859643f3f2476b2a28a494877fd89442 (patch) | |
| tree | a7c54633d33bf1c306d972613771f2d28bd25acf /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | PM: suspend: Set mem_sleep_current during kernel command line setup (diff) | |
| download | kernel-e7a7681c859643f3f2476b2a28a494877fd89442.tar.gz kernel-e7a7681c859643f3f2476b2a28a494877fd89442.zip | |
PM: sleep: wakeirq: fix wake irq warning in system suspend
When driver uses pm_runtime_force_suspend() as the system suspend callback
function and registers the wake irq with reverse enable ordering, the wake
irq will be re-enabled when entering system suspend, triggering an
'Unbalanced enable for IRQ xxx' warning. In this scenario, the call
sequence during system suspend is as follows:
suspend_devices_and_enter()
-> dpm_suspend_start()
-> dpm_run_callback()
-> pm_runtime_force_suspend()
-> dev_pm_enable_wake_irq_check()
-> dev_pm_enable_wake_irq_complete()
-> suspend_enter()
-> dpm_suspend_noirq()
-> device_wakeup_arm_wake_irqs()
-> dev_pm_arm_wake_irq()
To fix this issue, complete the setting of WAKE_IRQ_DEDICATED_ENABLED flag
in dev_pm_enable_wake_irq_complete() to avoid redundant irq enablement.
Fixes: 8527beb12087 ("PM: sleep: wakeirq: fix wake irq arming")
Reviewed-by: Dhruva Gole <[email protected]>
Signed-off-by: Qingliang Li <[email protected]>
Reviewed-by: Johan Hovold <[email protected]>
Cc: 5.16+ <[email protected]> # 5.16+
Signed-off-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions
