From 9ee1e825586688f1bc4aad5c5d915c30dc4369b8 Mon Sep 17 00:00:00 2001
From: "Mark D. Roth" <roth@google.com>
Date: Fri, 12 Jul 2024 15:51:01 +0000
Subject: [PATCH] add comment

---
 src/core/load_balancing/xds/xds_cluster_impl.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/core/load_balancing/xds/xds_cluster_impl.cc b/src/core/load_balancing/xds/xds_cluster_impl.cc
index 592665f3de9..c3b025f3ed1 100644
--- a/src/core/load_balancing/xds/xds_cluster_impl.cc
+++ b/src/core/load_balancing/xds/xds_cluster_impl.cc
@@ -680,7 +680,10 @@ XdsClusterImplLb::MaybeCreateCertificateProviderLocked(
   absl::Status status = Match(
       cluster_resource.common_tls_context.certificate_validation_context
           .ca_certs,
-      [](const absl::monostate&) { return absl::OkStatus(); },
+      [](const absl::monostate&) {
+        // No root cert configured.
+        return absl::OkStatus();
+      },
       [&](const CommonTlsContext::CertificateProviderPluginInstance&
               cert_provider) {
         root_cert_name = cert_provider.certificate_name;