68 ftrace_push_return_trace(unsigned long ret, unsigned long func,  in ftrace_push_return_trace()  argument
96 	current->ret_stack[index].ret = ret;  in ftrace_push_return_trace()
122 int function_graph_enter(unsigned long ret, unsigned long func,  in function_graph_enter()  argument
135 	    ftrace_find_rec_direct(ret - MCOUNT_INSN_SIZE))  in function_graph_enter()
141 	if (ftrace_push_return_trace(ret, func, frame_pointer, retp))  in function_graph_enter()
158 ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret,  in ftrace_pop_return_trace()  argument
169 		*ret = (unsigned long)panic;  in ftrace_pop_return_trace()
195 		     current->ret_stack[index].ret);  in ftrace_pop_return_trace()
196 		*ret = (unsigned long)panic;  in ftrace_pop_return_trace()
201 	*ret = current->ret_stack[index].ret;  in ftrace_pop_return_trace()
246 	unsigned long ret;  in ftrace_return_to_handler()  local
248 	ftrace_pop_return_trace(&trace, &ret, frame_pointer);  in ftrace_return_to_handler()
259 	if (unlikely(!ret)) {  in ftrace_return_to_handler()
263 		ret = (unsigned long)panic;  in ftrace_return_to_handler()
266 	return ret;  in ftrace_return_to_handler()
308 				    unsigned long ret, unsigned long *retp)  in ftrace_graph_ret_addr()  argument
313 	if (ret != (unsigned long)dereference_kernel_function_descriptor(return_to_handler))  in ftrace_graph_ret_addr()
314 		return ret;  in ftrace_graph_ret_addr()
317 		return ret;  in ftrace_graph_ret_addr()
321 			return task->ret_stack[i].ret;  in ftrace_graph_ret_addr()
323 	return ret;  in ftrace_graph_ret_addr()
327 				    unsigned long ret, unsigned long *retp)  in ftrace_graph_ret_addr()  argument
331 	if (ret != (unsigned long)dereference_kernel_function_descriptor(return_to_handler))  in ftrace_graph_ret_addr()
332 		return ret;  in ftrace_graph_ret_addr()
337 		return ret;  in ftrace_graph_ret_addr()
342 	return task->ret_stack[task_idx].ret;  in ftrace_graph_ret_addr()
383 	int ret = 0;  in alloc_retstack_tasklist()  local
395 			ret = -ENOMEM;  in alloc_retstack_tasklist()
403 			ret = -EAGAIN;  in alloc_retstack_tasklist()
422 	return ret;  in alloc_retstack_tasklist()
578 	int ret, cpu;  in start_graph_tracing()  local
594 		ret = alloc_retstack_tasklist(ret_stack_list);  in start_graph_tracing()
595 	} while (ret == -EAGAIN);  in start_graph_tracing()
597 	if (!ret) {  in start_graph_tracing()
598 		ret = register_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);  in start_graph_tracing()
599 		if (ret)  in start_graph_tracing()
605 	return ret;  in start_graph_tracing()
610 	int ret = 0;  in register_ftrace_graph()  local
616 		ret = -EBUSY;  in register_ftrace_graph()
623 	ret = start_graph_tracing();  in register_ftrace_graph()
624 	if (ret) {  in register_ftrace_graph()
641 	ret = ftrace_startup(&graph_ops, FTRACE_START_FUNC_RET);  in register_ftrace_graph()
644 	return ret;  in register_ftrace_graph()