[IPV6]: make two functions static

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

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 6001948..5cc8731 100644 (file)
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -99,7 +99,7 @@ static int udp_v6_get_port(struct sock *sk, unsigned short snum)
                next:;
                }
                result = best;
-               for(;; result += UDP_HTABLE_SIZE) {
+               for(i = 0; i < (1 << 16) / UDP_HTABLE_SIZE; i++, result += UDP_HTABLE_SIZE) {
                        if (result > sysctl_local_port_range[1])
                                result = sysctl_local_port_range[0]
                                        + ((result - sysctl_local_port_range[0]) &
@@ -107,6 +107,8 @@ static int udp_v6_get_port(struct sock *sk, unsigned short snum)
                        if (!udp_lport_inuse(result))
                                break;
                }
+               if (i >= (1 << 16) / UDP_HTABLE_SIZE)
+                       goto fail;
 gotit:
                udp_port_rover = snum = result;
        } else {
@@ -246,7 +248,7 @@ try_again:
                err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov,
                                              copied);
        } else if (msg->msg_flags&MSG_TRUNC) {
-               if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum)))
+               if (__skb_checksum_complete(skb))
                        goto csum_copy_err;
                err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov,
                                              copied);
@@ -361,13 +363,10 @@ static inline int udpv6_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
                return -1;
        }
 
-       if (skb->ip_summed != CHECKSUM_UNNECESSARY) {
-               if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum))) {
-                       UDP6_INC_STATS_BH(UDP_MIB_INERRORS);
-                       kfree_skb(skb);
-                       return 0;
-               }
-               skb->ip_summed = CHECKSUM_UNNECESSARY;
+       if (skb_checksum_complete(skb)) {
+               UDP6_INC_STATS_BH(UDP_MIB_INERRORS);
+               kfree_skb(skb);
+               return 0;
        }
 
        if (sock_queue_rcv_skb(sk,skb)<0) {
@@ -489,13 +488,10 @@ static int udpv6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
                uh = skb->h.uh;
        }
 
-       if (skb->ip_summed==CHECKSUM_HW) {
+       if (skb->ip_summed == CHECKSUM_HW &&
+           !csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, skb->csum))
                skb->ip_summed = CHECKSUM_UNNECESSARY;
-               if (csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, skb->csum)) {
-                       LIMIT_NETDEBUG(KERN_DEBUG "udp v6 hw csum failure.\n");
-                       skb->ip_summed = CHECKSUM_NONE;
-               }
-       }
+
        if (skb->ip_summed != CHECKSUM_UNNECESSARY)
                skb->csum = ~csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, 0);
 
@@ -519,8 +515,7 @@ static int udpv6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
                if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb))
                        goto discard;
 
-               if (skb->ip_summed != CHECKSUM_UNNECESSARY &&
-                   (unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum)))
+               if (skb_checksum_complete(skb))
                        goto discard;
                UDP6_INC_STATS_BH(UDP_MIB_NOPORTS);
 
@@ -776,7 +771,9 @@ do_udp_sendmsg:
        }
        if (opt == NULL)
                opt = np->opt;
-       opt = fl6_merge_options(&opt_space, flowlabel, opt);
+       if (flowlabel)
+               opt = fl6_merge_options(&opt_space, flowlabel, opt);
+       opt = ipv6_fixup_options(&opt_space, opt);
 
        fl->proto = IPPROTO_UDP;
        ipv6_addr_copy(&fl->fl6_dst, daddr);
@@ -852,10 +849,16 @@ do_append_data:
        else if (!corkreq)
                err = udp_v6_push_pending_frames(sk, up);
 
-       if (dst && connected)
-               ip6_dst_store(sk, dst,
-                             ipv6_addr_equal(&fl->fl6_dst, &np->daddr) ?
-                             &np->daddr : NULL);
+       if (dst) {
+               if (connected) {
+                       ip6_dst_store(sk, dst,
+                                     ipv6_addr_equal(&fl->fl6_dst, &np->daddr) ?
+                                     &np->daddr : NULL);
+               } else {
+                       dst_release(dst);
+               }
+       }
+
        if (err > 0)
                err = np->recverr ? net_xmit_errno(err) : 0;
        release_sock(sk);