[PATCH v2 2/3] cpu/hotplug: Weak fallback for arch_cpuhp_init_parallel_bringup

From: Jiaxun Yang
Date: Mon Jul 15 2024 - 09:36:11 EST


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@xxxxxxxxxxx>
---
kernel/cpu.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index c89e0e91379a..16323610cd20 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1829,6 +1829,11 @@ 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