|  | @@ -394,23 +394,23 @@ static void test_client_subchannel_filter(grpc_end2end_test_config config) {
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				|  |  |   * Test filter - always fails to initialize a call
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				|  |  |   */
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				|  |  |  
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				|  |  | -static grpc_error* init_call_elem(grpc_call_element* elem,
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				|  |  | -                                  const grpc_call_element_args* args) {
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				|  |  | +static grpc_error* init_call_elem(grpc_call_element* /*elem*/,
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				|  |  | +                                  const grpc_call_element_args* /*args*/) {
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				|  |  |    return grpc_error_set_int(
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				|  |  |        GRPC_ERROR_CREATE_FROM_STATIC_STRING("access denied"),
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				|  |  |        GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_PERMISSION_DENIED);
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				|  |  |  }
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				|  |  |  
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				|  |  | -static void destroy_call_elem(grpc_call_element* elem,
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				|  |  | -                              const grpc_call_final_info* final_info,
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				|  |  | -                              grpc_closure* ignored) {}
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				|  |  | +static void destroy_call_elem(grpc_call_element* /*elem*/,
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				|  |  | +                              const grpc_call_final_info* /*final_info*/,
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				|  |  | +                              grpc_closure* /*ignored*/) {}
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				|  |  |  
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				|  |  | -static grpc_error* init_channel_elem(grpc_channel_element* elem,
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				|  |  | -                                     grpc_channel_element_args* args) {
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				|  |  | +static grpc_error* init_channel_elem(grpc_channel_element* /*elem*/,
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				|  |  | +                                     grpc_channel_element_args* /*args*/) {
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				|  |  |    return GRPC_ERROR_NONE;
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				|  |  |  }
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				|  |  |  
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				|  |  | -static void destroy_channel_elem(grpc_channel_element* elem) {}
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				|  |  | +static void destroy_channel_elem(grpc_channel_element* /*elem*/) {}
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				|  |  |  
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				|  |  |  static const grpc_channel_filter test_filter = {
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				|  |  |      grpc_call_next_op,
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				|  | @@ -430,7 +430,7 @@ static const grpc_channel_filter test_filter = {
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				|  |  |   */
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				|  |  |  
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				|  |  |  static bool maybe_add_server_channel_filter(grpc_channel_stack_builder* builder,
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				|  |  | -                                            void* arg) {
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				|  |  | +                                            void* /*arg*/) {
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				|  |  |    if (g_enable_server_channel_filter) {
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				|  |  |      // Want to add the filter as close to the end as possible, to make
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				|  |  |      // sure that all of the filters work well together.  However, we
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				|  | @@ -449,7 +449,7 @@ static bool maybe_add_server_channel_filter(grpc_channel_stack_builder* builder,
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				|  |  |  }
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				|  |  |  
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				|  |  |  static bool maybe_add_client_channel_filter(grpc_channel_stack_builder* builder,
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				|  |  | -                                            void* arg) {
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				|  |  | +                                            void* /*arg*/) {
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				|  |  |    if (g_enable_client_channel_filter) {
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				|  |  |      // Want to add the filter as close to the end as possible, to make
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				|  |  |      // sure that all of the filters work well together.  However, we
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				|  | @@ -468,7 +468,7 @@ static bool maybe_add_client_channel_filter(grpc_channel_stack_builder* builder,
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				|  |  |  }
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				|  |  |  
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				|  |  |  static bool maybe_add_client_subchannel_filter(
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				|  |  | -    grpc_channel_stack_builder* builder, void* arg) {
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				|  |  | +    grpc_channel_stack_builder* builder, void* /*arg*/) {
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				|  |  |    if (g_enable_client_subchannel_filter) {
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				|  |  |      // Want to add the filter as close to the end as possible, to make
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				|  |  |      // sure that all of the filters work well together.  However, we
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