24 static int perf_trace_event_perm(struct ftrace_event_call *tp_event,  in perf_trace_event_perm()  argument
27 	if (tp_event->perf_perm) {  in perf_trace_event_perm()
28 		int ret = tp_event->perf_perm(tp_event, p_event);  in perf_trace_event_perm()
46 	if (ftrace_event_is_function(tp_event)) {  in perf_trace_event_perm()
72 		if (tp_event->flags & TRACE_EVENT_FL_CAP_ANY)  in perf_trace_event_perm()
86 static int perf_trace_event_reg(struct ftrace_event_call *tp_event,  in perf_trace_event_reg()  argument
93 	p_event->tp_event = tp_event;  in perf_trace_event_reg()
94 	if (tp_event->perf_refcount++ > 0)  in perf_trace_event_reg()
104 	tp_event->perf_events = list;  in perf_trace_event_reg()
119 	ret = tp_event->class->reg(tp_event, TRACE_REG_PERF_REGISTER, NULL);  in perf_trace_event_reg()
136 	if (!--tp_event->perf_refcount) {  in perf_trace_event_reg()
137 		free_percpu(tp_event->perf_events);  in perf_trace_event_reg()
138 		tp_event->perf_events = NULL;  in perf_trace_event_reg()
146 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_event_unreg()  local
149 	if (--tp_event->perf_refcount > 0)  in perf_trace_event_unreg()
152 	tp_event->class->reg(tp_event, TRACE_REG_PERF_UNREGISTER, NULL);  in perf_trace_event_unreg()
160 	free_percpu(tp_event->perf_events);  in perf_trace_event_unreg()
161 	tp_event->perf_events = NULL;  in perf_trace_event_unreg()
170 	module_put(tp_event->mod);  in perf_trace_event_unreg()
175 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_event_open()  local
176 	return tp_event->class->reg(tp_event, TRACE_REG_PERF_OPEN, p_event);  in perf_trace_event_open()
181 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_event_close()  local
182 	tp_event->class->reg(tp_event, TRACE_REG_PERF_CLOSE, p_event);  in perf_trace_event_close()
185 static int perf_trace_event_init(struct ftrace_event_call *tp_event,  in perf_trace_event_init()  argument
190 	ret = perf_trace_event_perm(tp_event, p_event);  in perf_trace_event_init()
194 	ret = perf_trace_event_reg(tp_event, p_event);  in perf_trace_event_init()
209 	struct ftrace_event_call *tp_event;  in perf_trace_init()  local
214 	list_for_each_entry(tp_event, &ftrace_events, list) {  in perf_trace_init()
215 		if (tp_event->event.type == event_id &&  in perf_trace_init()
216 		    tp_event->class && tp_event->class->reg &&  in perf_trace_init()
217 		    try_module_get(tp_event->mod)) {  in perf_trace_init()
218 			ret = perf_trace_event_init(tp_event, p_event);  in perf_trace_init()
220 				module_put(tp_event->mod);  in perf_trace_init()
239 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_add()  local
243 	pcpu_list = tp_event->perf_events;  in perf_trace_add()
253 	return tp_event->class->reg(tp_event, TRACE_REG_PERF_ADD, p_event);  in perf_trace_add()
258 	struct ftrace_event_call *tp_event = p_event->tp_event;  in perf_trace_del()  local
260 	tp_event->class->reg(tp_event, TRACE_REG_PERF_DEL, p_event);  in perf_trace_del()