258 	struct udphdr *udph;  in tcf_csum_ipv4_udp()  local
267 	 * udph->len to get the real length without any protocol check,  in tcf_csum_ipv4_udp()
268 	 * UDPLITE uses udph->len for another thing,  in tcf_csum_ipv4_udp()
272 	udph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*udph));  in tcf_csum_ipv4_udp()
273 	if (udph == NULL)  in tcf_csum_ipv4_udp()
277 	ul = ntohs(udph->len);  in tcf_csum_ipv4_udp()
279 	if (udplite || udph->check) {  in tcf_csum_ipv4_udp()
281 		udph->check = 0;  in tcf_csum_ipv4_udp()
285 				skb->csum = csum_partial(udph, ipl - ihl, 0);  in tcf_csum_ipv4_udp()
286 			else if ((ul >= sizeof(*udph)) && (ul <= ipl - ihl))  in tcf_csum_ipv4_udp()
287 				skb->csum = csum_partial(udph, ul, 0);  in tcf_csum_ipv4_udp()
294 			skb->csum = csum_partial(udph, ul, 0);  in tcf_csum_ipv4_udp()
297 		udph->check = csum_tcpudp_magic(iph->saddr, iph->daddr,  in tcf_csum_ipv4_udp()
301 		if (!udph->check)  in tcf_csum_ipv4_udp()
302 			udph->check = CSUM_MANGLED_0;  in tcf_csum_ipv4_udp()
314 	struct udphdr *udph;  in tcf_csum_ipv6_udp()  local
323 	 * udph->len to get the real length without any protocol check,  in tcf_csum_ipv6_udp()
324 	 * UDPLITE uses udph->len for another thing,  in tcf_csum_ipv6_udp()
328 	udph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*udph));  in tcf_csum_ipv6_udp()
329 	if (udph == NULL)  in tcf_csum_ipv6_udp()
333 	ul = ntohs(udph->len);  in tcf_csum_ipv6_udp()
335 	udph->check = 0;  in tcf_csum_ipv6_udp()
339 			skb->csum = csum_partial(udph, ipl - ihl, 0);  in tcf_csum_ipv6_udp()
341 		else if ((ul >= sizeof(*udph)) && (ul <= ipl - ihl))  in tcf_csum_ipv6_udp()
342 			skb->csum = csum_partial(udph, ul, 0);  in tcf_csum_ipv6_udp()
350 		skb->csum = csum_partial(udph, ul, 0);  in tcf_csum_ipv6_udp()
353 	udph->check = csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, ul,  in tcf_csum_ipv6_udp()
357 	if (!udph->check)  in tcf_csum_ipv6_udp()
358 		udph->check = CSUM_MANGLED_0;  in tcf_csum_ipv6_udp()