It is a general assumption that architectures entitled to parallel
bringup with CONFIG_HOTPLUG_PARALLEL do expect parallel bringup to
be available.

Provide a weak fallback arch_cpuhp_init_parallel_bringup function
to match this assumption.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 kernel/cpu.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 2ab3f68a1bb1..c925d0f4b0c8 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1820,6 +1820,11 @@ static inline const struct cpumask *cpuhp_get_primary_thread_mask(void)
 }
 #endif
 
+bool __weak arch_cpuhp_init_parallel_bringup(void)
+{
+	return true;
+}
+
 /*
  * On architectures which have enabled parallel bringup this invokes all BP
  * prepare states for each of the to be onlined APs first. The last state

-- 
2.45.2