199 	unsigned int hh_len = LL_RESERVED_SPACE(dev);  in ip_finish_output2()  local
208 	if (unlikely(skb_headroom(skb) < hh_len && dev->header_ops)) {  in ip_finish_output2()
209 		skb = skb_expand_head(skb, hh_len);  in ip_finish_output2()
973 	int hh_len;  in __ip_append_data()  local
997 	hh_len = LL_RESERVED_SPACE(rt->dst.dev);  in __ip_append_data()
1094 			alloc_extra = hh_len + 15;  in __ip_append_data()
1139 			skb_reserve(skb, hh_len);  in __ip_append_data()
1356 	int hh_len;  in ip_append_page()  local
1379 	hh_len = LL_RESERVED_SPACE(rt->dst.dev);  in ip_append_page()
1411 			alloclen = fragheaderlen + hh_len + fraggap + 15;  in ip_append_page()
1423 			skb_reserve(skb, hh_len);  in ip_append_page()