};
        const struct proc_nfs_info *nfs_infop;
        struct nfs_client *clp = nfss->nfs_client;
-       char buf[12];
-       const char *proto;
 
        seq_printf(m, ",vers=%d", clp->rpc_ops->version);
        seq_printf(m, ",rsize=%d", nfss->rsize);
                else
                        seq_puts(m, nfs_infop->nostr);
        }
-       switch (nfss->client->cl_xprt->prot) {
-               case IPPROTO_TCP:
-                       proto = "tcp";
-                       break;
-               case IPPROTO_UDP:
-                       proto = "udp";
-                       break;
-               default:
-                       snprintf(buf, sizeof(buf), "%u", nfss->client->cl_xprt->prot);
-                       proto = buf;
-       }
-       seq_printf(m, ",proto=%s", proto);
+       seq_printf(m, ",proto=%s",
+                  rpc_peeraddr2str(nfss->client, RPC_DISPLAY_PROTO));
        seq_printf(m, ",timeo=%lu", 10U * clp->retrans_timeo / HZ);
        seq_printf(m, ",retrans=%u", clp->retrans_count);
        seq_printf(m, ",sec=%s", nfs_pseudoflavour_to_name(nfss->client->cl_auth->au_flavor));