MIN_SKB_SIZE
if (likely(len > MIN_SKB_SIZE)) {
memcpy(skb->data, va, MIN_SKB_SIZE);
skb_put(skb, MIN_SKB_SIZE);
MIN_SKB_SIZE,
len - MIN_SKB_SIZE,
if (likely(len > MIN_SKB_SIZE)) {
memcpy(skb->data, va, MIN_SKB_SIZE);
skb_put(skb, MIN_SKB_SIZE);
pg_info->page_offset + MIN_SKB_SIZE,
len - MIN_SKB_SIZE,
skb = dev_alloc_skb(MIN_SKB_SIZE + SKB_ADJ);
skb = dev_alloc_skb(MIN_SKB_SIZE + SKB_ADJ);