TXINFO_DESC_SIZE
return (__le32 *) (entry->skb->data + TXINFO_DESC_SIZE);
roundup(entry->skb->len, 4) - TXINFO_DESC_SIZE);
skbdesc->desc_len = TXINFO_DESC_SIZE + entry->queue->winfo_size;
queue->desc_size = TXINFO_DESC_SIZE;
queue->desc_size = TXINFO_DESC_SIZE;