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-rw-r--r--include/linux/cpu.h5
-rw-r--r--init/main.c1
-rw-r--r--kernel/cpu.c13
3 files changed, 5 insertions, 14 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 2643d848df9..4d668e05d45 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -69,7 +69,6 @@ static inline void unregister_cpu_notifier(struct notifier_block *nb)
int cpu_up(unsigned int cpu);
void notify_cpu_starting(unsigned int cpu);
-extern void cpu_hotplug_init(void);
extern void cpu_maps_update_begin(void);
extern void cpu_maps_update_done(void);
@@ -84,10 +83,6 @@ static inline void unregister_cpu_notifier(struct notifier_block *nb)
{
}
-static inline void cpu_hotplug_init(void)
-{
-}
-
static inline void cpu_maps_update_begin(void)
{
}
diff --git a/init/main.c b/init/main.c
index 09131ec090c..4870dfeb9ee 100644
--- a/init/main.c
+++ b/init/main.c
@@ -678,7 +678,6 @@ asmlinkage void __init start_kernel(void)
#endif
page_cgroup_init();
enable_debug_pagealloc();
- cpu_hotplug_init();
kmemtrace_init();
kmemleak_init();
debug_objects_mem_init();
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 395b6974dc8..8ce10043e4a 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -34,14 +34,11 @@ static struct {
* an ongoing cpu hotplug operation.
*/
int refcount;
-} cpu_hotplug;
-
-void __init cpu_hotplug_init(void)
-{
- cpu_hotplug.active_writer = NULL;
- mutex_init(&cpu_hotplug.lock);
- cpu_hotplug.refcount = 0;
-}
+} cpu_hotplug = {
+ .active_writer = NULL,
+ .lock = __MUTEX_INITIALIZER(cpu_hotplug.lock),
+ .refcount = 0,
+};
#ifdef CONFIG_HOTPLUG_CPU