daddr = &skb->nh.ipv6h->daddr;
/* Perform checksum. */
- if (skb->ip_summed == CHECKSUM_HW) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- if (csum_ipv6_magic(saddr, daddr, skb->len, IPPROTO_ICMPV6,
- skb->csum)) {
- LIMIT_NETDEBUG(KERN_DEBUG "ICMPv6 hw checksum failed\n");
- skb->ip_summed = CHECKSUM_NONE;
- }
- }
- if (skb->ip_summed == CHECKSUM_NONE) {
- if (csum_ipv6_magic(saddr, daddr, skb->len, IPPROTO_ICMPV6,
- skb_checksum(skb, 0, skb->len, 0))) {
+ switch (skb->ip_summed) {
+ case CHECKSUM_HW:
+ if (!csum_ipv6_magic(saddr, daddr, skb->len, IPPROTO_ICMPV6,
+ skb->csum))
+ break;
+ /* fall through */
+ case CHECKSUM_NONE:
+ skb->csum = ~csum_ipv6_magic(saddr, daddr, skb->len,
+ IPPROTO_ICMPV6, 0);
+ if (__skb_checksum_complete(skb)) {
LIMIT_NETDEBUG(KERN_DEBUG "ICMPv6 checksum failed [%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x > %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x]\n",
NIP6(*saddr), NIP6(*daddr));
goto discard_it;
inet6_del_protocol(&icmpv6_protocol, IPPROTO_ICMPV6);
}
-static struct icmp6_err {
+static const struct icmp6_err {
int err;
int fatal;
} tab_unreach[] = {