register_trace_event
extern int register_trace_event(struct trace_event *event);
if (!register_trace_event(&trace_blk_event)) {
ret = register_trace_event(&trace_branch_event);
id = register_trace_event(&call->event);
ret = register_trace_event(&call->event);
ret = register_trace_event(&user->call.event);
if (!register_trace_event(&graph_trace_entry_event)) {
if (!register_trace_event(&graph_trace_retaddr_entry_event)) {
if (!register_trace_event(&graph_trace_ret_event)) {
ret = register_trace_event(event);
EXPORT_SYMBOL_GPL(register_trace_event);
ret = register_trace_event(&call->event);