diff --git a/mindspore/lite/src/common/log_adapter.cc b/mindspore/lite/src/common/log_adapter.cc
index 5529ff8a8d..539ba4e1dd 100644
--- a/mindspore/lite/src/common/log_adapter.cc
+++ b/mindspore/lite/src/common/log_adapter.cc
@@ -46,9 +46,9 @@ bool IsPrint(int level) {
   static const char *env = std::getenv("MSLOG");
   static int ms_level = EnvToInt(env);
   if (ms_level < 0) {
-    ms_level = 1;
+    ms_level = 2;
     printf("please set env MSLOG DEBUG/INFO/WARNING/ERROR\n");
-    printf("the default is INFO\n");
+    printf("the default is WARNING\n");
   }
   return level >= ms_level;
 }
diff --git a/mindspore/lite/src/runtime/kernel/arm/nnacl/int8/conv_int8.cc b/mindspore/lite/src/runtime/kernel/arm/nnacl/int8/conv_int8.cc
index 5fbbb768b0..83b1d9bc5f 100644
--- a/mindspore/lite/src/runtime/kernel/arm/nnacl/int8/conv_int8.cc
+++ b/mindspore/lite/src/runtime/kernel/arm/nnacl/int8/conv_int8.cc
@@ -126,10 +126,10 @@ void IndirectGemmInt8Opt(int8_t *dst, int32_t *tmp_dst, const int8_t *src, const
 
 void Conv3x3Uint8Gemm(int32_t *dst, const int16_t *src, const int16_t *weight, int oc, int ic8, size_t real_cal_num) {
   int oc4 = UP_DIV(oc, C4NUM);
-  int input_unit_square = 16;
 #ifdef ENABLE_ARM
   IndirectGemmInt16to32_8x4(dst, src, weight, 16, ic8, oc4, oc4 * 4 * 16 * sizeof(int32_t));
 #else
+  int input_unit_square = 16;
   for (int c = 0; c < oc4; c++) {
     int filter_oc_offset = c * input_unit_square * ic8 * C8NUM * C4NUM;
     int dst_oc_offset = c * input_unit_square * C4NUM;
diff --git a/mindspore/lite/tools/converter/legacy_optimizer/fusion/format_trans_fusion_pass.cc b/mindspore/lite/tools/converter/legacy_optimizer/fusion/format_trans_fusion_pass.cc
index 156c79103a..edad265bff 100644
--- a/mindspore/lite/tools/converter/legacy_optimizer/fusion/format_trans_fusion_pass.cc
+++ b/mindspore/lite/tools/converter/legacy_optimizer/fusion/format_trans_fusion_pass.cc
@@ -149,8 +149,14 @@ STATUS FormatTransFusionPass::DoFusion(schema::MetaGraphT *graph, const std::str
   } else {
     MS_ASSERT(false);
   }
-  MS_ASSERT(srcPath != nullptr);
-  MS_ASSERT(dstPath != nullptr);
+  if (srcPath == nullptr) {
+    MS_LOG(ERROR) << "srcPath is failed to get";
+    return RET_ERROR;
+  }
+  if (dstPath == nullptr) {
+    MS_LOG(ERROR) << "dstPath is failed to get";
+    return RET_ERROR;
+  }
   auto srcNode = graph->nodes.at(srcPath->nodeIdx).get();
   auto dstNode = graph->nodes.at(dstPath->nodeIdx).get();
   MS_ASSERT(srcNode != nullptr);
diff --git a/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc b/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc
index 2f06beb0a5..103c234ec9 100755
--- a/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc
+++ b/mindspore/lite/tools/converter/parser/onnx/onnx_model_parser.cc
@@ -47,7 +47,6 @@ TypeId OnnxModelParser::GetDateTypeFromOnnx(onnx::TensorProto_DataType onnx_type
 
 std::vector<int32_t> OnnxModelParser::GetDimsFromOnnxValue(const onnx::ValueInfoProto &onnx_value) {
   std::vector<int32_t> dims;
-  const auto shape_info = onnx_value.type().tensor_type().shape();
   for (const auto &it : onnx_value.type().tensor_type().shape().dim()) {
     dims.emplace_back(it.dim_value());
   }
@@ -97,7 +96,7 @@ STATUS OnnxModelParser::SetGraphConstTensor(const onnx::GraphProto &onnx_graph,
     if (CopyOnnxTensorData(onnx_const_value, tensor.get())) {
       return RET_ERROR;
     }
-    const auto index = tensor_cache->AddTensor(onnx_const_value.name(), tensor.release(), GRAPH_INPUT);
+    // const auto index = tensor_cache->AddTensor(onnx_const_value.name(), tensor.release(), GRAPH_INPUT);
     // MS_LOGD("add const tensor: %s, index %d", onnx_const_value.name().c_str(), index)
   }
   return RET_OK;
@@ -290,11 +289,6 @@ void OnnxModelParser::SetOpQuantParams(const onnx::GraphProto &onnx_graph, const
       // MS_LOGE("new QuantParamT failed, node: %s", dst_op->name.c_str());
       return;
     }
-    // std::unique_ptr<mindspore::lite::QuantParamArrayT> quant_param_array(new (std::nothrow) QuantParamArrayT());
-    if (quant_param == nullptr) {
-      // MS_LOGE("new QuantParamArrayT failed, node: %s", dst_op->name.c_str());
-      return;
-    }
     int argNum = 0;
     for (const auto &onnx_node_attr : node.attribute()) {
       if (onnx_node_attr.name() == "Y_scale") {