1559 	struct sk_buff *skb2 = skb;  in br_multicast_ipv4_rcv()  local
1594 		skb2 = skb_clone(skb, GFP_ATOMIC);  in br_multicast_ipv4_rcv()
1595 		if (!skb2)  in br_multicast_ipv4_rcv()
1598 		err = pskb_trim_rcsum(skb2, len);  in br_multicast_ipv4_rcv()
1603 	len -= ip_hdrlen(skb2);  in br_multicast_ipv4_rcv()
1604 	offset = skb_network_offset(skb2) + ip_hdrlen(skb2);  in br_multicast_ipv4_rcv()
1605 	__skb_pull(skb2, offset);  in br_multicast_ipv4_rcv()
1606 	skb_reset_transport_header(skb2);  in br_multicast_ipv4_rcv()
1609 	if (!pskb_may_pull(skb2, sizeof(*ih)))  in br_multicast_ipv4_rcv()
1612 	switch (skb2->ip_summed) {  in br_multicast_ipv4_rcv()
1614 		if (!csum_fold(skb2->csum))  in br_multicast_ipv4_rcv()
1618 		skb2->csum = 0;  in br_multicast_ipv4_rcv()
1619 		if (skb_checksum_complete(skb2))  in br_multicast_ipv4_rcv()
1626 	ih = igmp_hdr(skb2);  in br_multicast_ipv4_rcv()
1635 		err = br_ip4_multicast_igmp3_report(br, port, skb2, vid);  in br_multicast_ipv4_rcv()
1638 		err = br_ip4_multicast_query(br, port, skb2, vid);  in br_multicast_ipv4_rcv()
1646 	__skb_push(skb2, offset);  in br_multicast_ipv4_rcv()
1648 	if (skb2 != skb)  in br_multicast_ipv4_rcv()
1649 		kfree_skb(skb2);  in br_multicast_ipv4_rcv()
1659 	struct sk_buff *skb2;  in br_multicast_ipv6_rcv()  local
1701 	skb2 = skb_clone(skb, GFP_ATOMIC);  in br_multicast_ipv6_rcv()
1702 	if (!skb2)  in br_multicast_ipv6_rcv()
1706 	if (!pskb_may_pull(skb2, offset + sizeof(struct icmp6hdr)))  in br_multicast_ipv6_rcv()
1709 	len -= offset - skb_network_offset(skb2);  in br_multicast_ipv6_rcv()
1711 	__skb_pull(skb2, offset);  in br_multicast_ipv6_rcv()
1712 	skb_reset_transport_header(skb2);  in br_multicast_ipv6_rcv()
1713 	skb_postpull_rcsum(skb2, skb_network_header(skb2),  in br_multicast_ipv6_rcv()
1714 			   skb_network_header_len(skb2));  in br_multicast_ipv6_rcv()
1716 	icmp6_type = icmp6_hdr(skb2)->icmp6_type;  in br_multicast_ipv6_rcv()
1730 	if (skb2->len > len) {  in br_multicast_ipv6_rcv()
1731 		err = pskb_trim_rcsum(skb2, len);  in br_multicast_ipv6_rcv()
1737 	ip6h = ipv6_hdr(skb2);  in br_multicast_ipv6_rcv()
1739 	switch (skb2->ip_summed) {  in br_multicast_ipv6_rcv()
1741 		if (!csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, skb2->len,  in br_multicast_ipv6_rcv()
1742 					IPPROTO_ICMPV6, skb2->csum))  in br_multicast_ipv6_rcv()
1746 		skb2->csum = ~csum_unfold(csum_ipv6_magic(&ip6h->saddr,  in br_multicast_ipv6_rcv()
1748 							skb2->len,  in br_multicast_ipv6_rcv()
1750 		if (__skb_checksum_complete(skb2))  in br_multicast_ipv6_rcv()
1762 		if (!pskb_may_pull(skb2, sizeof(*mld))) {  in br_multicast_ipv6_rcv()
1766 		mld = (struct mld_msg *)skb_transport_header(skb2);  in br_multicast_ipv6_rcv()
1772 		err = br_ip6_multicast_mld2_report(br, port, skb2, vid);  in br_multicast_ipv6_rcv()
1775 		err = br_ip6_multicast_query(br, port, skb2, vid);  in br_multicast_ipv6_rcv()
1780 		if (!pskb_may_pull(skb2, sizeof(*mld))) {  in br_multicast_ipv6_rcv()
1784 		mld = (struct mld_msg *)skb_transport_header(skb2);  in br_multicast_ipv6_rcv()
1790 	kfree_skb(skb2);  in br_multicast_ipv6_rcv()