diff options
Diffstat (limited to 'net/ipv6/icmp.c')
| -rw-r--r-- | net/ipv6/icmp.c | 30 |
1 files changed, 12 insertions, 18 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index b7185fb3377c..1bdf0fb8bf8a 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -585,17 +585,16 @@ static int icmpv6_rcv(struct sk_buff **pskb, unsigned int *nhoffp) 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; @@ -700,10 +699,7 @@ int __init icmpv6_init(struct net_proto_family *ops) struct sock *sk; int err, i, j; - for (i = 0; i < NR_CPUS; i++) { - if (!cpu_possible(i)) - continue; - + for_each_cpu(i) { err = sock_create_kern(PF_INET6, SOCK_RAW, IPPROTO_ICMPV6, &per_cpu(__icmpv6_socket, i)); if (err < 0) { @@ -749,9 +745,7 @@ void icmpv6_cleanup(void) { int i; - for (i = 0; i < NR_CPUS; i++) { - if (!cpu_possible(i)) - continue; + for_each_cpu(i) { sock_release(per_cpu(__icmpv6_socket, i)); } inet6_del_protocol(&icmpv6_protocol, IPPROTO_ICMPV6); |