Merge branch 'master' into tk71

[mv-sheeva.git] / net / ipv6 / udp.c

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 5acb3560ff15267021266f59c7b2102f633f3d6a..9a009c66c8a3dd549262aeeb392bf68ec60c5fd4 100644 (file)
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -54,8 +54,8 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
 {
        const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr;
        const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
-       __be32 sk1_rcv_saddr = inet_sk(sk)->inet_rcv_saddr;
-       __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
+       __be32 sk1_rcv_saddr = sk_rcv_saddr(sk);
+       __be32 sk2_rcv_saddr = sk_rcv_saddr(sk2);
        int sk_ipv6only = ipv6_only_sock(sk);
        int sk2_ipv6only = inet_v6_ipv6only(sk2);
        int addr_type = ipv6_addr_type(sk_rcv_saddr6);
@@ -122,8 +122,8 @@ static void udp_v6_rehash(struct sock *sk)
 
 static inline int compute_score(struct sock *sk, struct net *net,
                                unsigned short hnum,
-                               struct in6_addr *saddr, __be16 sport,
-                               struct in6_addr *daddr, __be16 dport,
+                               const struct in6_addr *saddr, __be16 sport,
+                               const struct in6_addr *daddr, __be16 dport,
                                int dif)
 {
        int score = -1;
@@ -227,7 +227,7 @@ begin:
 
        if (result) {
 exact_match:
-               if (unlikely(!atomic_inc_not_zero(&result->sk_refcnt)))
+               if (unlikely(!atomic_inc_not_zero_hint(&result->sk_refcnt, 2)))
                        result = NULL;
                else if (unlikely(compute_score2(result, net, saddr, sport,
                                  daddr, hnum, dif) < badness)) {
@@ -239,8 +239,8 @@ exact_match:
 }
 
 static struct sock *__udp6_lib_lookup(struct net *net,
-                                     struct in6_addr *saddr, __be16 sport,
-                                     struct in6_addr *daddr, __be16 dport,
+                                     const struct in6_addr *saddr, __be16 sport,
+                                     const struct in6_addr *daddr, __be16 dport,
                                      int dif, struct udp_table *udptable)
 {
        struct sock *sk, *result;
@@ -294,7 +294,7 @@ begin:
                goto begin;
 
        if (result) {
-               if (unlikely(!atomic_inc_not_zero(&result->sk_refcnt)))
+               if (unlikely(!atomic_inc_not_zero_hint(&result->sk_refcnt, 2)))
                        result = NULL;
                else if (unlikely(compute_score(result, net, hnum, saddr, sport,
                                        daddr, dport, dif) < badness)) {
@@ -320,6 +320,14 @@ static struct sock *__udp6_lib_lookup_skb(struct sk_buff *skb,
                                 udptable);
 }
 
+struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport,
+                            const struct in6_addr *daddr, __be16 dport, int dif)
+{
+       return __udp6_lib_lookup(net, saddr, sport, daddr, dport, dif, &udp_table);
+}
+EXPORT_SYMBOL_GPL(udp6_lib_lookup);
+
+
 /*
  *     This should be easy, if there is something there we
  *     return it, otherwise we block.
@@ -519,7 +527,7 @@ int udpv6_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
                }
        }
 
-       if (sk->sk_filter) {
+       if (rcu_dereference_raw(sk->sk_filter)) {
                if (udp_lib_checksum_complete(skb))
                        goto drop;
        }
@@ -594,7 +602,7 @@ static void flush_stack(struct sock **stack, unsigned int count,
 
                sk = stack[i];
                if (skb1) {
-                       if (sk_rcvqueues_full(sk, skb)) {
+                       if (sk_rcvqueues_full(sk, skb1)) {
                                kfree_skb(skb1);
                                goto drop;
                        }
@@ -1469,6 +1477,7 @@ struct proto udpv6_prot = {
        .compat_setsockopt = compat_udpv6_setsockopt,
        .compat_getsockopt = compat_udpv6_getsockopt,
 #endif
+       .clear_sk          = sk_prot_clear_portaddr_nulls,
 };
 
 static struct inet_protosw udpv6_protosw = {