From 24e274b8d9c9617bc10b9dcde66864fb2884b58c Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Thu, 11 Feb 2016 08:54:49 -0800
Subject: [PATCH] Add comment

---
 src/core/channel/channel_args.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/channel/channel_args.c b/src/core/channel/channel_args.c
index 619bdd7e99a..bae7a90a015 100644
--- a/src/core/channel/channel_args.c
+++ b/src/core/channel/channel_args.c
@@ -118,6 +118,8 @@ static int cmp_arg(const grpc_arg *a, const grpc_arg *b) {
   GPR_UNREACHABLE_CODE(return 0);
 }
 
+/* stabilizing comparison function: since channel_args ordering matters for
+ * keys with the same name, we need to preserve that ordering */
 static int cmp_key_stable(const void *ap, const void *bp) {
   const grpc_arg *const *a = ap;
   const grpc_arg *const *b = bp;