59 ftrace_push_return_trace(unsigned long ret, unsigned long func,  in ftrace_push_return_trace()  argument
87 	current->ret_stack[index].ret = ret;  in ftrace_push_return_trace()
113 int function_graph_enter(unsigned long ret, unsigned long func,  in function_graph_enter()  argument
125 	    ftrace_find_rec_direct(ret - MCOUNT_INSN_SIZE))  in function_graph_enter()
130 	if (ftrace_push_return_trace(ret, func, frame_pointer, retp))  in function_graph_enter()
147 ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret,  in ftrace_pop_return_trace()  argument
158 		*ret = (unsigned long)panic;  in ftrace_pop_return_trace()
184 		     current->ret_stack[index].ret);  in ftrace_pop_return_trace()
185 		*ret = (unsigned long)panic;  in ftrace_pop_return_trace()
190 	*ret = current->ret_stack[index].ret;  in ftrace_pop_return_trace()
235 	unsigned long ret;  in ftrace_return_to_handler()  local
237 	ftrace_pop_return_trace(&trace, &ret, frame_pointer);  in ftrace_return_to_handler()
248 	if (unlikely(!ret)) {  in ftrace_return_to_handler()
252 		ret = (unsigned long)panic;  in ftrace_return_to_handler()
255 	return ret;  in ftrace_return_to_handler()
297 				    unsigned long ret, unsigned long *retp)  in ftrace_graph_ret_addr()  argument
302 	if (ret != (unsigned long)dereference_kernel_function_descriptor(return_to_handler))  in ftrace_graph_ret_addr()
303 		return ret;  in ftrace_graph_ret_addr()
306 		return ret;  in ftrace_graph_ret_addr()
310 			return task->ret_stack[i].ret;  in ftrace_graph_ret_addr()
312 	return ret;  in ftrace_graph_ret_addr()
316 				    unsigned long ret, unsigned long *retp)  in ftrace_graph_ret_addr()  argument
320 	if (ret != (unsigned long)dereference_kernel_function_descriptor(return_to_handler))  in ftrace_graph_ret_addr()
321 		return ret;  in ftrace_graph_ret_addr()
326 		return ret;  in ftrace_graph_ret_addr()
331 	return task->ret_stack[task_idx].ret;  in ftrace_graph_ret_addr()
373 	int ret = 0;  in alloc_retstack_tasklist()  local
385 			ret = -ENOMEM;  in alloc_retstack_tasklist()
393 			ret = -EAGAIN;  in alloc_retstack_tasklist()
412 	return ret;  in alloc_retstack_tasklist()
566 	int ret, cpu;  in start_graph_tracing()  local
582 		ret = alloc_retstack_tasklist(ret_stack_list);  in start_graph_tracing()
583 	} while (ret == -EAGAIN);  in start_graph_tracing()
585 	if (!ret) {  in start_graph_tracing()
586 		ret = register_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);  in start_graph_tracing()
587 		if (ret)  in start_graph_tracing()
593 	return ret;  in start_graph_tracing()
598 	int ret = 0;  in register_ftrace_graph()  local
604 		ret = -EBUSY;  in register_ftrace_graph()
611 	ret = start_graph_tracing();  in register_ftrace_graph()
612 	if (ret) {  in register_ftrace_graph()
629 	ret = ftrace_startup(&graph_ops, FTRACE_START_FUNC_RET);  in register_ftrace_graph()
632 	return ret;  in register_ftrace_graph()