extern struct static_call_tramp_key __start_static_call_tramp_key[],
__stop_static_call_tramp_key[];
-static bool static_call_initialized;
+static int static_call_initialized;
+
+/*
+ * Must be called before early_initcall() to be effective.
+ */
+void static_call_force_reinit(void)
+{
+ if (WARN_ON_ONCE(!static_call_initialized))
+ return;
+
+ static_call_initialized++;
+}
/* mutex to protect key modules/sites */
static DEFINE_MUTEX(static_call_mutex);
{
int ret;
- if (static_call_initialized)
+ /* See static_call_force_reinit(). */
+ if (static_call_initialized == 1)
return 0;
cpus_read_lock();
BUG();
}
- static_call_initialized = true;
-
#ifdef CONFIG_MODULES
- register_module_notifier(&static_call_module_nb);
+ if (!static_call_initialized)
+ register_module_notifier(&static_call_module_nb);
#endif
+
+ static_call_initialized = 1;
return 0;
}
early_initcall(static_call_init);