ipv6: constify inet6_mc_check()

inet6_mc_check() is essentially a read-only function.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index c04f359655b86feed2b4b42cc69b90c63088238a..82da55101b5a30b2a5512d964429d2c5f73d03fd 100644 (file)
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -223,7 +223,7 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
                      const struct in6_addr *addr);
 void __ipv6_sock_mc_close(struct sock *sk);
 void ipv6_sock_mc_close(struct sock *sk);
-bool inet6_mc_check(struct sock *sk, const struct in6_addr *mc_addr,
+bool inet6_mc_check(const struct sock *sk, const struct in6_addr *mc_addr,
                    const struct in6_addr *src_addr);
 
 int ipv6_dev_mc_inc(struct net_device *dev, const struct in6_addr *addr);

diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 1c02160cf7a4c54f0d8687b8368e5f6151ab0bce..714cdc9e2b8edfb925a061a722c38b37b1c6088e 100644 (file)
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -627,12 +627,12 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
        return 0;
 }
 
-bool inet6_mc_check(struct sock *sk, const struct in6_addr *mc_addr,
+bool inet6_mc_check(const struct sock *sk, const struct in6_addr *mc_addr,
                    const struct in6_addr *src_addr)
 {
-       struct ipv6_pinfo *np = inet6_sk(sk);
-       struct ipv6_mc_socklist *mc;
-       struct ip6_sf_socklist *psl;
+       const struct ipv6_pinfo *np = inet6_sk(sk);
+       const struct ipv6_mc_socklist *mc;
+       const struct ip6_sf_socklist *psl;
        bool rv = true;
 
        rcu_read_lock();