enum trace_reg {
TRACE_REG_REGISTER,
TRACE_REG_UNREGISTER,
+#ifdef CONFIG_PERF_EVENTS
TRACE_REG_PERF_REGISTER,
TRACE_REG_PERF_UNREGISTER,
TRACE_REG_PERF_OPEN,
TRACE_REG_PERF_CLOSE,
TRACE_REG_PERF_ADD,
TRACE_REG_PERF_DEL,
+#endif
};
struct ftrace_event_call;