[NET] NETNS: Omit namespace comparision without CONFIG_NET_NS.

Introduce an inline net_eq() to compare two namespaces.
Without CONFIG_NET_NS, since no namespace other than &init_net
exists, it is always 1.

We do not need to convert 1) inline vs inline and
2) inline vs &init_net comparisons.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 1064111e5b96..1b6ff513c75d 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -139,7 +139,7 @@ static struct sock *inet_lookup_listener_slow(struct net *net,
         sk_for_each(sk, node, head) {
                 const struct inet_sock *inet = inet_sk(sk);
 
-                if (sock_net(sk) == net && inet->num == hnum &&
+                if (net_eq(sock_net(sk), net) && inet->num == hnum &&
                                 !ipv6_only_sock(sk)) {
                         const __be32 rcv_saddr = inet->rcv_saddr;
                         int score = sk->sk_family == PF_INET ? 1 : 0;
@@ -182,7 +182,7 @@ struct sock *__inet_lookup_listener(struct net *net,
                 if (inet->num == hnum && !sk->sk_node.next &&
                     (!inet->rcv_saddr || inet->rcv_saddr == daddr) &&
                     (sk->sk_family == PF_INET || !ipv6_only_sock(sk)) &&
-                    !sk->sk_bound_dev_if && sock_net(sk) == net)
+                    !sk->sk_bound_dev_if && net_eq(sock_net(sk), net))
                         goto sherry_cache;
                 sk = inet_lookup_listener_slow(net, head, daddr, hnum, dif);
         }