cpu/hotplug: Make HOTPLUG_PARALLEL independent of HOTPLUG_SMT

Provide stub functions for SMT related parallel bring up functions so that
HOTPLUG_PARALLEL can work without HOTPLUG_SMT.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240716-loongarch-hotplug-v3-1-af59b3bb35c8@flygoat.com
This commit is contained in:
Jiaxun Yang 2024-07-16 22:14:58 +08:00 • committed by Thomas Gleixner
commit c0e81a455e