[PATCH] smp: Mark smp_prepare_boot_cpu() __init

From: Bibo Mao
Date: Sat Sep 07 2024 - 04:27:34 EST


Function smp_prepare_boot_cpu() is only called at boot stage, here
mark it as __init.

Signed-off-by: Bibo Mao <maobibo@xxxxxxxxxxx>
---
arch/loongarch/kernel/smp.c | 2 +-
arch/mips/kernel/smp.c | 2 +-
arch/powerpc/kernel/smp.c | 2 +-
include/linux/smp.h | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c
index ca405ab86aae..be2655c4c414 100644
--- a/arch/loongarch/kernel/smp.c
+++ b/arch/loongarch/kernel/smp.c
@@ -476,7 +476,7 @@ core_initcall(ipi_pm_init);
#endif

/* Preload SMP state for boot cpu */
-void smp_prepare_boot_cpu(void)
+void __init smp_prepare_boot_cpu(void)
{
unsigned int cpu, node, rr_node;

diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 0362fc5df7b0..39e193cad2b9 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -439,7 +439,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
}

/* preload SMP state for boot cpu */
-void smp_prepare_boot_cpu(void)
+void __init smp_prepare_boot_cpu(void)
{
if (mp_ops->prepare_boot_cpu)
mp_ops->prepare_boot_cpu();
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 46e6d2cd7a2d..4ab9b8cee77a 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -1166,7 +1166,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
cpu_smt_set_num_threads(num_threads, threads_per_core);
}

-void smp_prepare_boot_cpu(void)
+void __init smp_prepare_boot_cpu(void)
{
BUG_ON(smp_processor_id() != boot_cpuid);
#ifdef CONFIG_PPC64
diff --git a/include/linux/smp.h b/include/linux/smp.h
index fcd61dfe2af3..6a0813c905d0 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -109,7 +109,7 @@ static inline void on_each_cpu_cond(smp_cond_func_t cond_func,
* Architecture specific boot CPU setup. Defined as empty weak function in
* init/main.c. Architectures can override it.
*/
-void smp_prepare_boot_cpu(void);
+void __init smp_prepare_boot_cpu(void);

#ifdef CONFIG_SMP


base-commit: b31c4492884252a8360f312a0ac2049349ddf603
--
2.39.3