77 	if (!current->ret_stack)  in ftrace_push_return_trace()
87 	if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {  in ftrace_push_return_trace()
88 		atomic_inc(&current->trace_overrun);  in ftrace_push_return_trace()
94 	index = ++current->curr_ret_stack;  in ftrace_push_return_trace()
96 	current->ret_stack[index].ret = ret;  in ftrace_push_return_trace()
97 	current->ret_stack[index].func = func;  in ftrace_push_return_trace()
98 	current->ret_stack[index].calltime = calltime;  in ftrace_push_return_trace()
100 	current->ret_stack[index].fp = frame_pointer;  in ftrace_push_return_trace()
103 	current->ret_stack[index].retp = retp;  in ftrace_push_return_trace()
139 	trace.depth = ++current->curr_ret_depth;  in function_graph_enter()
150 	current->curr_ret_stack--;  in function_graph_enter()
152 	current->curr_ret_depth--;  in function_graph_enter()
163 	index = current->curr_ret_stack;  in ftrace_pop_return_trace()
188 	if (unlikely(current->ret_stack[index].fp != frame_pointer)) {  in ftrace_pop_return_trace()
192 		     current->ret_stack[index].fp,  in ftrace_pop_return_trace()
194 		     (void *)current->ret_stack[index].func,  in ftrace_pop_return_trace()
195 		     current->ret_stack[index].ret);  in ftrace_pop_return_trace()
201 	*ret = current->ret_stack[index].ret;  in ftrace_pop_return_trace()
202 	trace->func = current->ret_stack[index].func;  in ftrace_pop_return_trace()
203 	trace->calltime = current->ret_stack[index].calltime;  in ftrace_pop_return_trace()
204 	trace->overrun = atomic_read(&current->trace_overrun);  in ftrace_pop_return_trace()
205 	trace->depth = current->curr_ret_depth--;  in ftrace_pop_return_trace()
257 	current->curr_ret_stack--;  in ftrace_return_to_handler()