[IPV6]: make two functions static

[powerpc.git] / net / ipv6 / icmp.c

diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index b7185fb..34a3322 100644 (file)
--- 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) {
@@ -749,15 +745,13 @@ 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);
 }
 
-static struct icmp6_err {
+static const struct icmp6_err {
        int err;
        int fatal;
 } tab_unreach[] = {