109 static inline void release_probes(struct tracepoint *tp, struct tracepoint_func *old)  in release_probes()  argument
111 	if (old) {  in release_probes()
112 		struct tp_probes *tp_probes = container_of(old,  in release_probes()
137 	struct tracepoint_func *old, *new;  in func_add()  local
146 	old = *funcs;  in func_add()
147 	if (old) {  in func_add()
149 		for (iter_probes = 0; old[iter_probes].func; iter_probes++) {  in func_add()
150 			if (old[iter_probes].func == tp_stub_func)  in func_add()
152 			if (old[iter_probes].func == tp_func->func &&  in func_add()
153 			    old[iter_probes].data == tp_func->data)  in func_add()
162 	if (old) {  in func_add()
164 		for (iter_probes = 0; old[iter_probes].func; iter_probes++) {  in func_add()
165 			if (old[iter_probes].func == tp_stub_func)  in func_add()
168 			if (pos < 0 && old[iter_probes].prio < prio)  in func_add()
170 			new[nr_probes++] = old[iter_probes];  in func_add()
183 	return old;  in func_add()
190 	struct tracepoint_func *old, *new;  in func_remove()  local
192 	old = *funcs;  in func_remove()
194 	if (!old)  in func_remove()
200 		for (nr_probes = 0; old[nr_probes].func; nr_probes++) {  in func_remove()
201 			if ((old[nr_probes].func == tp_func->func &&  in func_remove()
202 			     old[nr_probes].data == tp_func->data) ||  in func_remove()
203 			    old[nr_probes].func == tp_stub_func)  in func_remove()
216 		return old;  in func_remove()
223 			for (i = 0; old[i].func; i++) {  in func_remove()
224 				if ((old[i].func != tp_func->func ||  in func_remove()
225 				     old[i].data != tp_func->data) &&  in func_remove()
226 				    old[i].func != tp_stub_func)  in func_remove()
227 					new[j++] = old[i];  in func_remove()
236 			for (i = 0; old[i].func; i++) {  in func_remove()
237 				if (old[i].func == tp_func->func &&  in func_remove()
238 				    old[i].data == tp_func->data)  in func_remove()
239 					WRITE_ONCE(old[i].func, tp_stub_func);  in func_remove()
241 			*funcs = old;  in func_remove()
245 	return old;  in func_remove()
281 	struct tracepoint_func *old, *tp_funcs;  in tracepoint_add_func()  local
292 	old = func_add(&tp_funcs, func, prio);  in tracepoint_add_func()
293 	if (IS_ERR(old)) {  in tracepoint_add_func()
294 		WARN_ON_ONCE(warn && PTR_ERR(old) != -ENOMEM);  in tracepoint_add_func()
295 		return PTR_ERR(old);  in tracepoint_add_func()
332 		if (tp_funcs[0].data != old[0].data)  in tracepoint_add_func()
340 	release_probes(tp, old);  in tracepoint_add_func()
353 	struct tracepoint_func *old, *tp_funcs;  in tracepoint_remove_func()  local
357 	old = func_remove(&tp_funcs, func);  in tracepoint_remove_func()
358 	if (WARN_ON_ONCE(IS_ERR(old)))  in tracepoint_remove_func()
359 		return PTR_ERR(old);  in tracepoint_remove_func()
361 	if (tp_funcs == old)  in tracepoint_remove_func()
390 		if (tp_funcs[0].data != old[0].data)  in tracepoint_remove_func()
404 		if (tp_funcs[0].data != old[0].data)  in tracepoint_remove_func()
411 	release_probes(tp, old);  in tracepoint_remove_func()