server: mute compile warning without Redis

diff --git a/src/knot/server/server.c b/src/knot/server/server.c
index 07d3011dcaf5f9cf6a9457919963963898ddce4c..b8565f0e6ba2cac1a1a9c7ff5290c368be846eff 100644 (file)
--- a/src/knot/server/server.c
+++ b/src/knot/server/server.c
@@ -1723,6 +1723,7 @@ static void free_sess_ticket(intptr_t ptr)
        }
 }
 
+#ifdef ENABLE_REDIS
 static void free_redis_conn(intptr_t ptr)
 {
        if (ptr != CONN_POOL_FD_INVALID) {
@@ -1743,6 +1744,7 @@ static uint64_t db_listen_hash(conf_val_t *val)
        SipHash24_Update(&ctx, val->blob, val->blob_len);
        return SipHash24_End(&ctx);
 }
+#endif // ENABLE_REDIS
 
 static int reconfigure_remote_pool(conf_t *conf, server_t *server)
 {