kernel: timer: let k_timer_status_sync() idle the CPU when MT is off#101758
Merged
carlescufi merged 1 commit intozephyrproject-rtos:mainfrom Jan 7, 2026
Merged
kernel: timer: let k_timer_status_sync() idle the CPU when MT is off#101758carlescufi merged 1 commit intozephyrproject-rtos:mainfrom
k_timer_status_sync() idle the CPU when MT is off#101758carlescufi merged 1 commit intozephyrproject-rtos:mainfrom
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This patch modifies k_timer_status_sync() to idle the CPU when MT is disabled, instead of busy-looping. For this purpose, the spinlock in the MULTITHREADING=n case has been reduced to a irq_lock(), which works in pair with k_cpu_atomic_idle() to ensure the atomicity of enabling the IRQs and idling the CPU. Signed-off-by: Emanuele Di Santo <emdi@nordicsemi.no>
lemrey
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k_timer_status_sync() idle the CPU when MT is off
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peter-mitsis
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Jan 5, 2026
carlescufi
approved these changes
Jan 7, 2026
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This patch modifies
k_timer_status_sync()to idle the CPU when MT is disabled, instead of busy-looping. For this purpose, the spinlock in theMULTITHREADING=ncase has been reduced to airq_lock(), which works in pair withk_cpu_atomic_idle()to ensure the atomicity of enabling the IRQs and idling the CPU.See also #101192