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If CONFIG_HOTPLUG_CPU is disabled, /sys/devices/system/cpu/cpu* directories are still populated, so the test fails to correctly detect that CPU hotplug is not supported. Fix this by checking for the presence of 'online' files in those directories instead. The 'online' node is created for the given CPU if and only if this CPU supports hotplug. So if none of the CPUs have 'online' nodes, it means CPU hotplug is not supported. Signed-off-by: Dmytro Maluka <dmaluka@chromium.org> Link: https://lore.kernel.org/r/20260319153825.2813576-1-dmaluka@chromium.org Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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