ipv4: remove the useless argument from ip_tunnel_hash()

Since commit c544193214("GRE: Refactor GRE tunneling code")
introduced function ip_tunnel_hash(), the argument itn is no
longer in use, so remove it.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 83ede2e7ca42266ccdc3538f388819f6939879d2..1886cd40a3f6f44d6f63df50c44465415f0a6e45 100644 (file)
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -61,8 +61,7 @@
 #include <net/ip6_route.h>
 #endif
 
-static unsigned int ip_tunnel_hash(struct ip_tunnel_net *itn,
-                                  __be32 key, __be32 remote)
+static unsigned int ip_tunnel_hash(__be32 key, __be32 remote)
 {
        return hash_32((__force u32)key ^ (__force u32)remote,
                         IP_TNL_HASH_BITS);
@@ -204,7 +203,7 @@ struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn,
        struct ip_tunnel *t, *cand = NULL;
        struct hlist_head *head;
 
-       hash = ip_tunnel_hash(itn, key, remote);
+       hash = ip_tunnel_hash(key, remote);
        head = &itn->tunnels[hash];
 
        hlist_for_each_entry_rcu(t, head, hash_node) {
@@ -236,7 +235,7 @@ struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn,
                        cand = t;
        }
 
-       hash = ip_tunnel_hash(itn, key, 0);
+       hash = ip_tunnel_hash(key, 0);
        head = &itn->tunnels[hash];
 
        hlist_for_each_entry_rcu(t, head, hash_node) {
@@ -292,7 +291,7 @@ static struct hlist_head *ip_bucket(struct ip_tunnel_net *itn,
        else
                remote = 0;
 
-       h = ip_tunnel_hash(itn, parms->i_key, remote);
+       h = ip_tunnel_hash(parms->i_key, remote);
        return &itn->tunnels[h];
 }