Use size_t to index into Node inputs/outputs

src/ngraph/runtime/cpu/mkldnn_utils.cpp

@@ -174,14 +174,14 @@ const std::string& runtime::cpu::mkldnn_utils::get_mkldnn_format_string(memory::
 }
 
 mkldnn::memory::format runtime::cpu::mkldnn_utils::get_input_mkldnn_format(const Node* node,
-                                                                           int index)
+                                                                           size_t index)
 {
     auto tvl = node->get_inputs()[index].get_output().get_tensor_view()->get_tensor_view_layout();
     return dynamic_cast<runtime::cpu::LayoutDescriptor&>(*tvl).get_mkldnn_format();
 }
 
 mkldnn::memory::format runtime::cpu::mkldnn_utils::get_output_mkldnn_format(const Node* node,
-                                                                            int index)
+                                                                            size_t index)
 {
     auto tvl = node->get_output_tensor_view(index)->get_tensor_view_layout();
     return dynamic_cast<runtime::cpu::LayoutDescriptor&>(*tvl).get_mkldnn_format();

src/ngraph/runtime/cpu/mkldnn_utils.hpp

@@ -39,8 +39,8 @@ namespace ngraph
                 mkldnn::memory::data_type get_mkldnn_data_type(const ngraph::element::Type& type);
                 const std::string& get_mkldnn_format_string(mkldnn::memory::format fmt);
 
-                mkldnn::memory::format get_input_mkldnn_format(const Node* node, int index);
-                mkldnn::memory::format get_output_mkldnn_format(const Node* node, int index);
+                mkldnn::memory::format get_input_mkldnn_format(const Node* node, size_t index);
+                mkldnn::memory::format get_output_mkldnn_format(const Node* node, size_t index);
                 bool use_mkldnn_kernel(const ngraph::Node* node);
                 bool compare_mkldnn_formats(mkldnn::memory::format fmt1,
                                             mkldnn::memory::format fmt2);