124 	if (!current->ret_stack)  in ftrace_push_return_trace()
134 	if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {  in ftrace_push_return_trace()
135 		atomic_inc(&current->trace_overrun);  in ftrace_push_return_trace()
155 	if (current->curr_ret_stack < -1)  in ftrace_push_return_trace()
160 	index = ++current->curr_ret_stack;  in ftrace_push_return_trace()
162 		current->curr_ret_stack -= FTRACE_NOTRACE_DEPTH;  in ftrace_push_return_trace()
164 	current->ret_stack[index].ret = ret;  in ftrace_push_return_trace()
165 	current->ret_stack[index].func = func;  in ftrace_push_return_trace()
166 	current->ret_stack[index].calltime = calltime;  in ftrace_push_return_trace()
167 	current->ret_stack[index].subtime = 0;  in ftrace_push_return_trace()
168 	current->ret_stack[index].fp = frame_pointer;  in ftrace_push_return_trace()
169 	*depth = current->curr_ret_stack;  in ftrace_push_return_trace()
181 	index = current->curr_ret_stack;  in ftrace_pop_return_trace()
216 	if (unlikely(current->ret_stack[index].fp != frame_pointer)) {  in ftrace_pop_return_trace()
220 		     current->ret_stack[index].fp,  in ftrace_pop_return_trace()
222 		     (void *)current->ret_stack[index].func,  in ftrace_pop_return_trace()
223 		     current->ret_stack[index].ret);  in ftrace_pop_return_trace()
229 	*ret = current->ret_stack[index].ret;  in ftrace_pop_return_trace()
230 	trace->func = current->ret_stack[index].func;  in ftrace_pop_return_trace()
231 	trace->calltime = current->ret_stack[index].calltime;  in ftrace_pop_return_trace()
232 	trace->overrun = atomic_read(&current->trace_overrun);  in ftrace_pop_return_trace()
248 	current->curr_ret_stack--;  in ftrace_return_to_handler()
254 	if (current->curr_ret_stack < -1) {  in ftrace_return_to_handler()
255 		current->curr_ret_stack += FTRACE_NOTRACE_DEPTH;  in ftrace_return_to_handler()
319 	if (!ftrace_trace_task(current))  in trace_graph_entry()