142 static inline void release_probes(struct tracepoint_func *old)  in release_probes()  argument
144 	if (old) {  in release_probes()
145 		struct tp_probes *tp_probes = container_of(old,  in release_probes()
183 	struct tracepoint_func *old, *new;  in func_add()  local
192 	old = *funcs;  in func_add()
193 	if (old) {  in func_add()
195 		for (iter_probes = 0; old[iter_probes].func; iter_probes++) {  in func_add()
196 			if (old[iter_probes].func == tp_stub_func)  in func_add()
198 			if (old[iter_probes].func == tp_func->func &&  in func_add()
199 			    old[iter_probes].data == tp_func->data)  in func_add()
208 	if (old) {  in func_add()
210 		for (iter_probes = 0; old[iter_probes].func; iter_probes++) {  in func_add()
211 			if (old[iter_probes].func == tp_stub_func)  in func_add()
214 			if (pos < 0 && old[iter_probes].prio < prio)  in func_add()
216 			new[nr_probes++] = old[iter_probes];  in func_add()
229 	return old;  in func_add()
236 	struct tracepoint_func *old, *new;  in func_remove()  local
238 	old = *funcs;  in func_remove()
240 	if (!old)  in func_remove()
246 		for (nr_probes = 0; old[nr_probes].func; nr_probes++) {  in func_remove()
247 			if ((old[nr_probes].func == tp_func->func &&  in func_remove()
248 			     old[nr_probes].data == tp_func->data) ||  in func_remove()
249 			    old[nr_probes].func == tp_stub_func)  in func_remove()
262 		return old;  in func_remove()
269 			for (i = 0; old[i].func; i++) {  in func_remove()
270 				if ((old[i].func != tp_func->func ||  in func_remove()
271 				     old[i].data != tp_func->data) &&  in func_remove()
272 				    old[i].func != tp_stub_func)  in func_remove()
273 					new[j++] = old[i];  in func_remove()
282 			for (i = 0; old[i].func; i++) {  in func_remove()
283 				if (old[i].func == tp_func->func &&  in func_remove()
284 				    old[i].data == tp_func->data)  in func_remove()
285 					WRITE_ONCE(old[i].func, tp_stub_func);  in func_remove()
287 			*funcs = old;  in func_remove()
291 	return old;  in func_remove()
327 	struct tracepoint_func *old, *tp_funcs;  in tracepoint_add_func()  local
338 	old = func_add(&tp_funcs, func, prio);  in tracepoint_add_func()
339 	if (IS_ERR(old)) {  in tracepoint_add_func()
340 		WARN_ON_ONCE(warn && PTR_ERR(old) != -ENOMEM);  in tracepoint_add_func()
341 		return PTR_ERR(old);  in tracepoint_add_func()
378 		if (tp_funcs[0].data != old[0].data)  in tracepoint_add_func()
386 	release_probes(old);  in tracepoint_add_func()
399 	struct tracepoint_func *old, *tp_funcs;  in tracepoint_remove_func()  local
403 	old = func_remove(&tp_funcs, func);  in tracepoint_remove_func()
404 	if (WARN_ON_ONCE(IS_ERR(old)))  in tracepoint_remove_func()
405 		return PTR_ERR(old);  in tracepoint_remove_func()
407 	if (tp_funcs == old)  in tracepoint_remove_func()
437 		if (tp_funcs[0].data != old[0].data)  in tracepoint_remove_func()
451 		if (tp_funcs[0].data != old[0].data)  in tracepoint_remove_func()
458 	release_probes(old);  in tracepoint_remove_func()