static void update_attr(struct vc_data *vc)
{
	vc->vc_attr = build_attr(vc, vc->vc_color, vc->vc_intensity,
	              vc->vc_blink, vc->vc_underline,
	              vc->vc_reverse ^ vc->vc_decscnm, vc->vc_italic);
	vc->vc_video_erase_char = (build_attr(vc, vc->vc_color, 1, vc->vc_blink, 0, vc->vc_decscnm, 0) << 8) | ' ';
}