libdmsg: last{dist,rnss} are used with REQUIRE_SYMMETRICAL only.

While here, also remove two unused variables.

diff --git a/lib/libdmsg/msg_lnk.c b/lib/libdmsg/msg_lnk.c
index b7ea6db..201f7c6 100644 (file)
--- a/lib/libdmsg/msg_lnk.c
+++ b/lib/libdmsg/msg_lnk.c
@@ -1141,8 +1141,10 @@ dmsg_relay_scan_specific(h2span_node_t *node, h2span_conn_t *conn)
        dmsg_lnk_span_t *lspan;
        int count;
        int maxcount = 2;
+#ifdef REQUIRE_SYMMETRICAL
        uint32_t lastdist = DMSG_SPAN_MAXDIST;
        uint32_t lastrnss = 0;
+#endif
 
        info.node = node;
        info.relay = NULL;
@@ -1288,8 +1290,10 @@ dmsg_relay_scan_specific(h2span_node_t *node, h2span_conn_t *conn)
                       relay->source_rt->any.link->node != slink->node ||
                       relay->source_rt->any.link->dist >= slink->dist);
                relay = dmsg_generate_relay(conn, slink);
+#ifdef REQUIRE_SYMMETRICAL
                lastdist = slink->dist;
                lastrnss = slink->rnss;
+#endif
 
                /*
                 * Match (created new relay), get the next relay to
@@ -1321,11 +1325,8 @@ h2span_relay_t *
 dmsg_generate_relay(h2span_conn_t *conn, h2span_link_t *slink)
 {
        h2span_relay_t *relay;
-       h2span_node_t *node;
        dmsg_msg_t *msg;
 
-       node = slink->node;
-
        relay = dmsg_alloc(sizeof(*relay));
        relay->conn = conn;
        relay->source_rt = slink->state;
@@ -1686,10 +1687,8 @@ dmsg_debug_findspan(uint64_t msgid, dmsg_state_t **statep)
        h2span_cluster_t *cls;
        h2span_node_t *node;
        h2span_link_t *slink;
-       h2span_relay_t *relay;
 
        pthread_mutex_lock(&cluster_mtx);
-       relay = NULL;
        RB_FOREACH(cls, h2span_cluster_tree, &cluster_tree) {
                RB_FOREACH(node, h2span_node_tree, &cls->tree) {
                        RB_FOREACH(slink, h2span_link_tree, &node->tree) {