diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index bd51847..4ab8acf 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -234,7 +234,7 @@
 						      len, fl->proto,
 						      skb->csum);
 	} else {
-		u32 tmp_csum = 0;
+		__wsum tmp_csum = 0;
 
 		skb_queue_walk(&sk->sk_write_queue, skb) {
 			tmp_csum = csum_add(tmp_csum, skb->csum);
@@ -242,10 +242,10 @@
 
 		tmp_csum = csum_partial((char *)icmp6h,
 					sizeof(struct icmp6hdr), tmp_csum);
-		tmp_csum = csum_ipv6_magic(&fl->fl6_src,
-					   &fl->fl6_dst,
-					   len, fl->proto, tmp_csum);
-		icmp6h->icmp6_cksum = tmp_csum;
+		icmp6h->icmp6_cksum = csum_ipv6_magic(&fl->fl6_src,
+						      &fl->fl6_dst,
+						      len, fl->proto,
+						      tmp_csum);
 	}
 	ip6_push_pending_frames(sk);
 out:
@@ -636,8 +636,8 @@
 			break;
 		/* fall through */
 	case CHECKSUM_NONE:
-		skb->csum = ~csum_ipv6_magic(saddr, daddr, skb->len,
-					     IPPROTO_ICMPV6, 0);
+		skb->csum = ~csum_unfold(csum_ipv6_magic(saddr, daddr, skb->len,
+					     IPPROTO_ICMPV6, 0));
 		if (__skb_checksum_complete(skb)) {
 			LIMIT_NETDEBUG(KERN_DEBUG "ICMPv6 checksum failed [" NIP6_FMT " > " NIP6_FMT "]\n",
 				       NIP6(*saddr), NIP6(*daddr));