MAX_RX_SIZE
struct sk_buff *skb = dev_alloc_skb(MAX_RX_SIZE);
skb_tail_pointer(skb), MAX_RX_SIZE,
MAX_RX_SIZE);
MAX_RX_SIZE, DMA_FROM_DEVICE);
struct sk_buff *new_skb = dev_alloc_skb(MAX_RX_SIZE);
MAX_RX_SIZE, DMA_FROM_DEVICE);
MAX_RX_SIZE, DMA_FROM_DEVICE);
MAX_RX_SIZE);