head_copy_len    1749 net/core/skbuff.c 	int head_copy_len, head_copy_off;
head_copy_len    1759 net/core/skbuff.c 	head_copy_len = oldheadroom;
head_copy_len    1761 net/core/skbuff.c 	if (newheadroom <= head_copy_len)
head_copy_len    1762 net/core/skbuff.c 		head_copy_len = newheadroom;
head_copy_len    1764 net/core/skbuff.c 		head_copy_off = newheadroom - head_copy_len;
head_copy_len    1767 net/core/skbuff.c 	BUG_ON(skb_copy_bits(skb, -head_copy_len, n->head + head_copy_off,
head_copy_len    1768 net/core/skbuff.c 			     skb->len + head_copy_len));