Fix portability problems.

src/core/lib/channel/deadline_filter.c

@@ -197,7 +197,7 @@ typedef struct server_call_data {
 static grpc_error *init_call_elem(grpc_exec_ctx* exec_ctx,
                                   grpc_call_element* elem,
                                   grpc_call_element_args* args) {
-gpr_log(GPR_INFO, "==> %s() -- call_data_size=%lu", __func__, elem->filter->sizeof_call_data);
+gpr_log(GPR_INFO, "==> %s() -- call_data_size=%lu", __func__, (unsigned long)elem->filter->sizeof_call_data);
   base_call_data* calld = elem->call_data;
   // Note: size of call data is different between client and server.
   memset(calld, 0, elem->filter->sizeof_call_data);

src/core/lib/iomgr/error.c

@@ -372,7 +372,7 @@ void grpc_error_get_status(grpc_error *error, grpc_status_code *code,
   // until we find the first one that has a status code.
   intptr_t status = GRPC_STATUS_UNKNOWN;  // Default in case we don't find one.
   grpc_error* found_error = recursively_find_error_with_status(error, &status);
-  *code = status;
+  *code = (grpc_status_code)status;
   // Now populate msg.
   // If we found an error with a status code above, use that; otherwise,
   // fall back to using the parent error.