1 files changed, 2 insertions, 2 deletions

diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index e7d91f5d5cae..9783101bc4a9 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -713,8 +713,7 @@ static int tipc_udp_enable(struct net *net, struct tipc_bearer *b,
                         err = -EINVAL;
                         goto err;
                 }
-                b->mtu = dev->mtu - sizeof(struct iphdr)
-                        - sizeof(struct udphdr);
+                b->mtu = b->media->mtu;
 #if IS_ENABLED(CONFIG_IPV6)
         } else if (local.proto == htons(ETH_P_IPV6)) {
                 udp_conf.family = AF_INET6;
@@ -803,6 +802,7 @@ struct tipc_media udp_media_info = {
         .priority       = TIPC_DEF_LINK_PRI,
         .tolerance      = TIPC_DEF_LINK_TOL,
         .window         = TIPC_DEF_LINK_WIN,
+        .mtu            = TIPC_DEF_LINK_UDP_MTU,
         .type_id        = TIPC_MEDIA_TYPE_UDP,
         .hwaddr_len     = 0,
         .name           = "udp"