tty3270_input_size
prompt_sz = tty3270_input_size(tp->view.cols);
len = tty3270_input_size(tp->view.cols) - 6 - rrq->rescnt;
raw3270_request_set_data(rrq, tp->input, tty3270_input_size(tp->view.cols));
lines[i] = kcalloc(1, tty3270_input_size(cols) + 1, GFP_KERNEL);
prompt_sz = tty3270_input_size(new_cols);