int smp_call_function_single_async(int cpu, struct __call_single_data *csd);
+/*
+ * Cpus stopping functions in panic. All have default weak definitions.
+ * Architecture-dependent code may override them.
+ */
+void panic_smp_self_stop(void);
+void nmi_panic_self_stop(struct pt_regs *regs);
+void crash_smp_send_stop(void);
+
/*
* Call a function on all processors
*/