From d0f7bf4a76be6e0f8d8212c8ce91d054f478f29c Mon Sep 17 00:00:00 2001
From: Yuchen Zeng <zyc@google.com>
Date: Wed, 18 Jan 2017 11:49:22 -0800
Subject: [PATCH] Document new args in grpc_resolver_create

---
 src/core/ext/client_channel/resolver_registry.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/ext/client_channel/resolver_registry.h b/src/core/ext/client_channel/resolver_registry.h
index 4fb16131db..a4606463eb 100644
--- a/src/core/ext/client_channel/resolver_registry.h
+++ b/src/core/ext/client_channel/resolver_registry.h
@@ -60,7 +60,9 @@ void grpc_register_resolver_type(grpc_resolver_factory *factory);
     return it.
     If a resolver factory was not found, return NULL.
     \a args is a set of channel arguments to be included in the result
-    (typically the set of arguments passed in from the client API). */
+    (typically the set of arguments passed in from the client API).
+    \a pollset_set is used to drive IO in the name resolution process, it
+    should not be NULL. */
 grpc_resolver *grpc_resolver_create(grpc_exec_ctx *exec_ctx, const char *target,
                                     const grpc_channel_args *args,
                                     grpc_pollset_set *pollset_set);
-- 
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