tipc: fix build issue when building without IPv6

We can't directly call ipv6_sock_mc_join() but should use the stub
instead and protect it around IS_ENABLED.

Fixes: d0f91938bede ("tipc: add ip/udp media type")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index 04836dd70c2b..ac89101e5d1b 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -44,6 +44,7 @@
 #include <net/sock.h>
 #include <net/ip.h>
 #include <net/udp_tunnel.h>
+#include <net/addrconf.h>
 #include <linux/tipc_netlink.h>
 #include "core.h"
 #include "bearer.h"
@@ -247,10 +248,13 @@ static int enable_mcast(struct udp_bearer *ub, struct udp_media_addr *remote)
                 mreqn.imr_multiaddr = remote->ipv4;
                 mreqn.imr_ifindex = ub->ifindex;
                 err = ip_mc_join_group(sk, &mreqn);
+#if IS_ENABLED(CONFIG_IPV6)
         } else {
                 if (!ipv6_addr_is_multicast(&remote->ipv6))
                         return 0;
-                err = ipv6_sock_mc_join(sk, ub->ifindex, &remote->ipv6);
+                err = ipv6_stub->ipv6_sock_mc_join(sk, ub->ifindex,
+                                                   &remote->ipv6);
+#endif
         }
         return err;
 }