IWP_MAX_WIN_SIZE
if (ring->queued > ring->count - IWP_MAX_WIN_SIZE) {
if (ring->desc_cur < IWP_MAX_WIN_SIZE) {
if (ring->cur < IWP_MAX_WIN_SIZE) {
if (ring->cur < IWP_MAX_WIN_SIZE) {
IWP_MAX_WIN_SIZE];