diff --git a/oneflow/core/kernel/hinge_loss_kernel.cpp b/oneflow/core/kernel/hinge_loss_kernel.cpp
index af27c7190ce0c08ed28a04c50d3fc3af4f8ba0ea..1f16de3436203558236e08b19822e71c4a498092 100644
--- a/oneflow/core/kernel/hinge_loss_kernel.cpp
+++ b/oneflow/core/kernel/hinge_loss_kernel.cpp
@@ -57,10 +57,6 @@ struct HingeLossKernelUtil<DeviceType::kCPU, PredType, LabelType> {
         KernelUtil<DeviceType::kCPU, PredType>::Mul(ctx, piece_size * pre_dim, tmp_diff, tmp_diff,
                                                     tmp);
         KernelUtil<DeviceType::kCPU, PredType>::RowSum(ctx, piece_size, pre_dim, tmp, loss);
-        /*for (int64_t i = 0; i < piece_size; ++i) {
-          KernelUtil<DeviceType::kCPU, PredType>::Dot(ctx, pre_dim, tmp_diff + i * pre_dim, 1,
-                                                      tmp_diff + i * pre_dim, 1, loss + i);
-        }*/
         break;
       default: LOG(FATAL) << "Invalid norm method in " << op_conf.name();
     }
diff --git a/oneflow/core/kernel/hinge_loss_kernel.cu b/oneflow/core/kernel/hinge_loss_kernel.cu
index 74cb90b113d407ff5a6bc3c686b5843990678048..d1873631499e429053456cc1c0df868e3e8c08d8 100644
--- a/oneflow/core/kernel/hinge_loss_kernel.cu
+++ b/oneflow/core/kernel/hinge_loss_kernel.cu
@@ -63,10 +63,6 @@ struct HingeLossKernelUtil<DeviceType::kGPU, PredType, LabelType> {
         KernelUtil<DeviceType::kGPU, PredType>::RowSum(ctx, piece_size, pre_dim, tmp, loss,
                                                        tmp_storage,
                                                        sizeof(PredType) * piece_size * pre_dim);
-        /*for (int64_t i = 0; i < piece_size; ++i) {
-          KernelUtil<DeviceType::kGPU, PredType>::Dot(ctx, pre_dim, tmp_diff + i * pre_dim, 1,
-                                                      tmp_diff + i * pre_dim, 1, loss + i);
-        }*/
         break;
       default: LOG(FATAL) << "Invalid norm method in " << op_conf.name();
     }
diff --git a/oneflow/core/operator/op_conf.proto b/oneflow/core/operator/op_conf.proto
index 1dfd084efa173b090985c034b7f94344ac968ae2..ad2887499a95c879d484c1794ba7ee1d67bd27db 100644
--- a/oneflow/core/operator/op_conf.proto
+++ b/oneflow/core/operator/op_conf.proto
@@ -629,6 +629,7 @@ message MultiplyOpConf {
   required string in_1 = 2;
   required string out = 4;
 }
+
 enum Norm {
   L1 = 1;
   L2 = 2;