wx_desc_unused
wx_alloc_rx_buffers(ring, wx_desc_unused(ring));
u16 cleaned_count = wx_desc_unused(rx_ring);
(wx_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) {
if (likely(wx_desc_unused(tx_ring) >= size))
if (likely(wx_desc_unused(tx_ring) < size))
u16 wx_desc_unused(struct wx_ring *ring);
wx_alloc_rx_buffers(ring, wx_desc_unused(ring));