1 files changed, 9 insertions, 10 deletions

diff --git a/src/core/lib/surface/lame_client.cc b/src/core/lib/surface/lame_client.cc
index a0791080a9..6286f9159d 100644
--- a/src/core/lib/surface/lame_client.cc
+++ b/src/core/lib/surface/lame_client.cc
@@ -40,6 +40,7 @@ namespace grpc_core {
 namespace {
 
 struct CallData {
+  grpc_call_combiner *call_combiner;
   grpc_linked_mdelem status;
   grpc_linked_mdelem details;
   grpc_core::atomic<bool> filled_metadata;
@@ -52,14 +53,14 @@ struct ChannelData {
 
 static void fill_metadata(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
                           grpc_metadata_batch *mdb) {
-  CallData *calld = static_cast<CallData *>(elem->call_data);
+  CallData *calld = reinterpret_cast<CallData *>(elem->call_data);
   bool expected = false;
   if (!calld->filled_metadata.compare_exchange_strong(
           expected, true, grpc_core::memory_order_relaxed,
           grpc_core::memory_order_relaxed)) {
     return;
   }
-  ChannelData *chand = static_cast<ChannelData *>(elem->channel_data);
+  ChannelData *chand = reinterpret_cast<ChannelData *>(elem->channel_data);
   char tmp[GPR_LTOA_MIN_BUFSIZE];
   gpr_ltoa(chand->error_code, tmp);
   calld->status.md = grpc_mdelem_from_slices(
@@ -79,6 +80,7 @@ static void fill_metadata(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
 static void lame_start_transport_stream_op_batch(
     grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
     grpc_transport_stream_op_batch *op) {
+  CallData *calld = reinterpret_cast<CallData *>(elem->call_data);
   if (op->recv_initial_metadata) {
     fill_metadata(exec_ctx, elem,
                   op->payload->recv_initial_metadata.recv_initial_metadata);
@@ -87,12 +89,8 @@ static void lame_start_transport_stream_op_batch(
                   op->payload->recv_trailing_metadata.recv_trailing_metadata);
   }
   grpc_transport_stream_op_batch_finish_with_failure(
-      exec_ctx, op,
-      GRPC_ERROR_CREATE_FROM_STATIC_STRING("lame client channel"));
-}
-
-static char *lame_get_peer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) {
-  return NULL;
+      exec_ctx, op, GRPC_ERROR_CREATE_FROM_STATIC_STRING("lame client channel"),
+      calld->call_combiner);
 }
 
 static void lame_get_channel_info(grpc_exec_ctx *exec_ctx,
@@ -122,6 +120,8 @@ static void lame_start_transport_op(grpc_exec_ctx *exec_ctx,
 static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx,
                                   grpc_call_element *elem,
                                   const grpc_call_element_args *args) {
+  CallData *calld = reinterpret_cast<CallData *>(elem->call_data);
+  calld->call_combiner = args->call_combiner;
   return GRPC_ERROR_NONE;
 }
 
@@ -156,7 +156,6 @@ extern "C" const grpc_channel_filter grpc_lame_filter = {
     sizeof(grpc_core::ChannelData),
     grpc_core::init_channel_elem,
     grpc_core::destroy_channel_elem,
-    grpc_core::lame_get_peer,
     grpc_core::lame_get_channel_info,
     "lame-client",
 };
@@ -176,7 +175,7 @@ grpc_channel *grpc_lame_client_channel_create(const char *target,
       "error_message=%s)",
       3, (target, (int)error_code, error_message));
   GPR_ASSERT(elem->filter == &grpc_lame_filter);
-  auto chand = static_cast<grpc_core::ChannelData *>(elem->channel_data);
+  auto chand = reinterpret_cast<grpc_core::ChannelData *>(elem->channel_data);
   chand->error_code = error_code;
   chand->error_message = error_message;
   grpc_exec_ctx_finish(&exec_ctx);