diff --git a/paddle/operators/accuracy_op.cc b/paddle/operators/accuracy_op.cc
index c5fb113e0f4455ec852fd48542ea2917398df5f3..037bb49abc6c272eed2d27ea5d8425866ef9a1d5 100644
--- a/paddle/operators/accuracy_op.cc
+++ b/paddle/operators/accuracy_op.cc
@@ -21,7 +21,6 @@ class AccuracyOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Inference"),
                    "Input(Inference) of AccuracyOp should not be null.");
diff --git a/paddle/operators/activation_op.cc b/paddle/operators/activation_op.cc
index 84c3775b4fc2602e5df9bb454d21b318b8fda493..ee4f9b0ef29cc73907bc09fb6014850cb4e58a67 100644
--- a/paddle/operators/activation_op.cc
+++ b/paddle/operators/activation_op.cc
@@ -21,7 +21,6 @@ class ActivationOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     ctx->SetOutputDim("Y", ctx->GetInputDim("X"));
     ctx->ShareLoD("X", /*->*/ "Y");
@@ -32,7 +31,6 @@ class ActivationOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     ctx->SetOutputDim(framework::GradVarName("X"), ctx->GetInputDim("Y"));
   }
diff --git a/paddle/operators/adadelta_op.cc b/paddle/operators/adadelta_op.cc
index cf1bca1658f3fb4cd14465791a0f94865871a120..24e419b532d97bc16ab96dad418d6e73c03f30a0 100644
--- a/paddle/operators/adadelta_op.cc
+++ b/paddle/operators/adadelta_op.cc
@@ -21,7 +21,6 @@ class AdadeltaOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Param"),
                    "Input(Param) of AdadeltaOp should not be null.");
diff --git a/paddle/operators/adagrad_op.cc b/paddle/operators/adagrad_op.cc
index a17747efb79d76a6beffb27bfc03ee1b62c5618d..bc081f87dcab0dcd8ef329dcb1f66b627c82b4a2 100644
--- a/paddle/operators/adagrad_op.cc
+++ b/paddle/operators/adagrad_op.cc
@@ -21,7 +21,6 @@ class AdagradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Param"),
                    "Input(Param) of AdagradOp should not be null.");
diff --git a/paddle/operators/adam_op.cc b/paddle/operators/adam_op.cc
index 293b37b7750427cb88efb6dfd5a02dcf7ede24ac..e3db70ea129880434add21e71d15e5129c4551bd 100644
--- a/paddle/operators/adam_op.cc
+++ b/paddle/operators/adam_op.cc
@@ -21,7 +21,6 @@ class AdamOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Param"),
                    "Input(Param) of AdamOp should not be null.");
diff --git a/paddle/operators/adamax_op.cc b/paddle/operators/adamax_op.cc
index 5cf727742c770f8f0d59cd49345c5c055722a56c..e848333ef8a819648cc3056ae2f4a0e33fc58405 100644
--- a/paddle/operators/adamax_op.cc
+++ b/paddle/operators/adamax_op.cc
@@ -21,7 +21,6 @@ class AdamaxOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Param"),
                    "Input(Param) of AdamaxOp should not be null.");
diff --git a/paddle/operators/clip_op.cc b/paddle/operators/clip_op.cc
index 3e9b0d82ba06a918d52124e791715277640fd4ff..2d029394dd97a9c33c9c57fd3565345139cdff92 100644
--- a/paddle/operators/clip_op.cc
+++ b/paddle/operators/clip_op.cc
@@ -21,7 +21,6 @@ class ClipOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of ClipOp should not be null.");
@@ -60,7 +59,6 @@ class ClipOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should not be null");
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
diff --git a/paddle/operators/concat_op.cc b/paddle/operators/concat_op.cc
index 235c4449ace79e87d209615199d6628f269961a9..e11e51b4583817ef50cd447dbcf4c7202a152422 100644
--- a/paddle/operators/concat_op.cc
+++ b/paddle/operators/concat_op.cc
@@ -23,7 +23,6 @@ class ConcatOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE_GE(ctx->Inputs("X").size(), 1UL,
                       "Inputs(X) of ConcatOp should be empty.")
@@ -82,7 +81,6 @@ class ConcatOpGrad : public framework::OperatorWithKernel {
                const framework::AttributeMap &attrs)
       : OperatorWithKernel(type, inputs, outputs, attrs) {}
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     ctx->SetOutputsDim(framework::GradVarName("X"), ctx->GetInputsDim("X"));
   }
diff --git a/paddle/operators/conv2d_op.h b/paddle/operators/conv2d_op.h
index 7ebdbe81cbbaf59a60eb3dac0f570d70fc85d6ef..bd1734879ef2569bfc7c3bef21677d3b0dc49a78 100644
--- a/paddle/operators/conv2d_op.h
+++ b/paddle/operators/conv2d_op.h
@@ -44,7 +44,6 @@ class Conv2DOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override;
 };
 
@@ -52,7 +51,6 @@ class Conv2DOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override;
 };
 
diff --git a/paddle/operators/conv_shift_op.cc b/paddle/operators/conv_shift_op.cc
index e1e321ed5fce6ce4e4089cc5c5e488a2cbad6c82..6156a2d6af9a010240449a7c944ec0caffc85189 100644
--- a/paddle/operators/conv_shift_op.cc
+++ b/paddle/operators/conv_shift_op.cc
@@ -27,7 +27,6 @@ class ConvShiftOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should be not null.");
     PADDLE_ENFORCE(ctx->HasInput("Y"), "Input(Y) should be not null.");
@@ -54,7 +53,6 @@ class ConvShiftGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should be not null.");
     PADDLE_ENFORCE(ctx->HasInput("Y"), "Input(Y) should be not null.");
diff --git a/paddle/operators/cos_sim_op.cc b/paddle/operators/cos_sim_op.cc
index 2b4c4b9c45d22e9d0b124145b55cfaeeaf1583d5..55f69fb03ad69c94dc4ebb8edd651d84e06a5f46 100644
--- a/paddle/operators/cos_sim_op.cc
+++ b/paddle/operators/cos_sim_op.cc
@@ -23,7 +23,6 @@ class CosSimOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     // notnull check
     PADDLE_ENFORCE(ctx->HasInput("X"),
@@ -97,7 +96,6 @@ class CosSimOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     // notnull check
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) must not be null.");
diff --git a/paddle/operators/crop_op.cc b/paddle/operators/crop_op.cc
index a1424993cc3076f2755164393c5429d79fc1ee78..a994d916761da3b44cb60bd4c1c767cd1987522f 100644
--- a/paddle/operators/crop_op.cc
+++ b/paddle/operators/crop_op.cc
@@ -24,7 +24,6 @@ class CropOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of CropOp should not be null.");
@@ -114,7 +113,6 @@ class CropOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should not be null");
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
diff --git a/paddle/operators/cross_entropy_op.cc b/paddle/operators/cross_entropy_op.cc
index 923ae5be6c608bd3bccf278f310ec8e219fc0724..a865991db3111d2a7cec9f7731b3c34876864299 100644
--- a/paddle/operators/cross_entropy_op.cc
+++ b/paddle/operators/cross_entropy_op.cc
@@ -21,7 +21,6 @@ class CrossEntropyOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should be not null.");
     PADDLE_ENFORCE(ctx->HasInput("Label"), "Input(Label) should be not null.");
@@ -48,6 +47,7 @@ class CrossEntropyOp : public framework::OperatorWithKernel {
     ctx->ShareLoD("X", /*->*/ "Y");
   }
 
+ protected:
   // CrossEntropy's data type just determined by "X"
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
@@ -59,7 +59,6 @@ class CrossEntropyGradientOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should be not null.");
     PADDLE_ENFORCE(ctx->HasInput("Label"), "Input(Label) should be not null.");
@@ -94,6 +93,7 @@ class CrossEntropyGradientOp : public framework::OperatorWithKernel {
     ctx->SetOutputDim(framework::GradVarName("X"), x_dims);
   }
 
+ protected:
   // CrossEntropy's data type just determined by "X"
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
diff --git a/paddle/operators/decayed_adagrad_op.cc b/paddle/operators/decayed_adagrad_op.cc
index 7f583f18c8c6ee5025f6525306f9323fb329b030..17b394aa07cb0c7ca6e085b61590ff052221b22c 100644
--- a/paddle/operators/decayed_adagrad_op.cc
+++ b/paddle/operators/decayed_adagrad_op.cc
@@ -21,7 +21,6 @@ class DecayedAdagradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Param"),
                    "Input(Param) of DecayedAdagradOp should not be null.");
diff --git a/paddle/operators/dropout_op.cc b/paddle/operators/dropout_op.cc
index 708ccfa0bfc163ea75fcd9dbcb5ef6140b4b5f36..29858c90832bf116d07e43825eda5775a94beafb 100644
--- a/paddle/operators/dropout_op.cc
+++ b/paddle/operators/dropout_op.cc
@@ -23,7 +23,6 @@ class DropoutOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) must not be null.");
     PADDLE_ENFORCE_GE(ctx->Attrs().Get<float>("dropout_prob"), 0);
@@ -69,7 +68,6 @@ class DropoutOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE_EQ(ctx->Attrs().Get<bool>("is_training"), 1,
                       "GradOp is only callable when is_training is true");
diff --git a/paddle/operators/elementwise_op.h b/paddle/operators/elementwise_op.h
index 66f1910a4738f737c7581e17729c201a7e3eaeae..fce4b24a22f40c9cc57738273a758d0d48ff5e91 100644
--- a/paddle/operators/elementwise_op.h
+++ b/paddle/operators/elementwise_op.h
@@ -23,7 +23,6 @@ class ElementwiseOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   using Tensor = framework::Tensor;
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
@@ -105,7 +104,6 @@ class ElementwiseOpGrad : public framework::OperatorWithKernel {
   using framework::OperatorWithKernel::OperatorWithKernel;
   using Tensor = framework::Tensor;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should not be null");
     PADDLE_ENFORCE(ctx->HasInput("Y"), "Input(Y) should not be null");
diff --git a/paddle/operators/fill_constant_op.cc b/paddle/operators/fill_constant_op.cc
index a56832e202404a479e12bbbbe29fbf611cb478d4..0438d4d085f81d463253605b3aeca640a433a3b3 100644
--- a/paddle/operators/fill_constant_op.cc
+++ b/paddle/operators/fill_constant_op.cc
@@ -21,7 +21,6 @@ class FillConstantOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasOutput("Out"),
                    "Output(Out) of FillConstantOp should not be null.");
@@ -33,6 +32,7 @@ class FillConstantOp : public framework::OperatorWithKernel {
     ctx->SetOutputDim("Out", dims);
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext &ctx) const override {
     return static_cast<framework::DataType>(ctx.Attr<int>("data_type"));
diff --git a/paddle/operators/fill_zeros_like_op.cc b/paddle/operators/fill_zeros_like_op.cc
index 4c70b9a36bb8f3a2184a8f2ac738378e9d3271e2..ed529ac40aaf179b35a9ab32e11ed7dbbe9289ba 100644
--- a/paddle/operators/fill_zeros_like_op.cc
+++ b/paddle/operators/fill_zeros_like_op.cc
@@ -21,7 +21,6 @@ class FillZerosLikeOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of FillZerosLikeOp should not be null.");
diff --git a/paddle/operators/gather_op.cc b/paddle/operators/gather_op.cc
index fb99c6c01670fcbacd012573b0679ac755638c57..f6c7f472da24a1a60c0d2538ae643bdc8e55b10f 100644
--- a/paddle/operators/gather_op.cc
+++ b/paddle/operators/gather_op.cc
@@ -22,7 +22,6 @@ class GatherOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of GatherOp should not be null.");
@@ -40,6 +39,7 @@ class GatherOp : public framework::OperatorWithKernel {
     ctx->SetOutputDim("Out", output_dims);
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(ctx.Input<Tensor>("X")->type());
@@ -50,11 +50,11 @@ class GatherGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     ctx->SetOutputDim(framework::GradVarName("X"), ctx->GetInputDim("X"));
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(ctx.Input<Tensor>("X")->type());
diff --git a/paddle/operators/gaussian_random_op.cc b/paddle/operators/gaussian_random_op.cc
index ca7fb385057dda4ee6f7dea7edc21d9ebbf6b48e..f59f497d9f32069b764a9f777c7e9d6da9cdb108 100644
--- a/paddle/operators/gaussian_random_op.cc
+++ b/paddle/operators/gaussian_random_op.cc
@@ -42,7 +42,6 @@ class GaussianRandomOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasOutput("Out"),
                    "Output(Out) of GaussianRandomOp should not be null.");
@@ -57,6 +56,7 @@ class GaussianRandomOp : public framework::OperatorWithKernel {
     ctx->SetOutputDim("Out", framework::make_ddim(temp));
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return static_cast<framework::DataType>(Attr<int>("data_type"));
diff --git a/paddle/operators/gru_unit_op.cc b/paddle/operators/gru_unit_op.cc
index 24f84597cd7301af6521b8c1032e69569ba6f03a..72dd841c85ce9934a57263d10c366e679693c471 100644
--- a/paddle/operators/gru_unit_op.cc
+++ b/paddle/operators/gru_unit_op.cc
@@ -23,7 +23,6 @@ class GRUUnitOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Input"),
                    "Input(%s) of GRUUnitOp should not be null.", "Input");
@@ -131,7 +130,6 @@ class GRUUnitGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Input"),
                    "Input(%s) of GRUUnitGradOp should not be null.", "Input");
diff --git a/paddle/operators/lookup_table_op.cc b/paddle/operators/lookup_table_op.cc
index 3f8d4ab85756ec007004e397a55ea60e2fa704ae..b88cd14d78f616b0e57386ab891dad1a872bfe65 100644
--- a/paddle/operators/lookup_table_op.cc
+++ b/paddle/operators/lookup_table_op.cc
@@ -21,7 +21,6 @@ class LookupTableOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("W"),
                    "Input(W) of LookupTableOp should not be null.");
@@ -37,6 +36,7 @@ class LookupTableOp : public framework::OperatorWithKernel {
     ctx->ShareLoD("Ids", /*->*/ "Out");
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(ctx.Input<Tensor>("W")->type());
@@ -69,12 +69,12 @@ class LookupTableOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     auto table_dims = ctx->GetInputDim("W");
     ctx->SetOutputDim(framework::GradVarName("W"), table_dims);
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(ctx.Input<Tensor>("W")->type());
diff --git a/paddle/operators/lstm_unit_op.cc b/paddle/operators/lstm_unit_op.cc
index 13a45ec246988558b0c090ab14e627b5b0e44532..5d63017208a55ec4bcc2e8d66f1ca2e1b84d4593 100644
--- a/paddle/operators/lstm_unit_op.cc
+++ b/paddle/operators/lstm_unit_op.cc
@@ -21,7 +21,6 @@ class LstmUnitOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) of LSTM should not be null.");
     PADDLE_ENFORCE(ctx->HasInput("C_prev"),
@@ -76,7 +75,6 @@ class LstmUnitGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("C")),
                    "Input(C@GRAD) should not be null");
diff --git a/paddle/operators/margin_rank_loss_op.cc b/paddle/operators/margin_rank_loss_op.cc
index 5be61dfec3bb58ab9b658cb59ab0dd49bb67d8cb..638a99addc2119e8f44648cc54b97bd8a892d2bc 100644
--- a/paddle/operators/margin_rank_loss_op.cc
+++ b/paddle/operators/margin_rank_loss_op.cc
@@ -21,7 +21,6 @@ class MarginRankLossOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     // input check
     PADDLE_ENFORCE(ctx->HasInput("Label"), "Input(Label) shouldn't be null.");
@@ -94,7 +93,6 @@ class MarginRankLossGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Label"), "Input(Label) shouldn't be null.");
     PADDLE_ENFORCE(ctx->HasInput("X1"), "Input(X1) shouldn't be null.");
diff --git a/paddle/operators/mean_op.cc b/paddle/operators/mean_op.cc
index 441543049faf96c8fbc14e84448a348c3287c1e2..9556fdf73151eeb947b4f1aee63e131ac6aa76e6 100644
--- a/paddle/operators/mean_op.cc
+++ b/paddle/operators/mean_op.cc
@@ -21,7 +21,6 @@ class MeanOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of MeanOp should not be null.");
@@ -46,7 +45,6 @@ class MeanGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     ctx->SetOutputDim(framework::GradVarName("X"), ctx->GetInputDim("X"));
   }
diff --git a/paddle/operators/minus_op.cc b/paddle/operators/minus_op.cc
index d7fd2f901b766c3105a5ea8847fb8a3fe456a945..f7943e99acc5975d077f2319b6f678cfc693c1f3 100644
--- a/paddle/operators/minus_op.cc
+++ b/paddle/operators/minus_op.cc
@@ -25,7 +25,6 @@ class MinusOp : public framework::OperatorWithKernel {
           const framework::AttributeMap &attrs)
       : OperatorWithKernel(type, inputs, outputs, attrs) {}
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of MinusOp should not be null.");
diff --git a/paddle/operators/modified_huber_loss_op.cc b/paddle/operators/modified_huber_loss_op.cc
index 6522327fdcf646a60df76909d049341b5a9021c9..7b9e9528952d552a69ffe6a628672901c5c1a7fd 100644
--- a/paddle/operators/modified_huber_loss_op.cc
+++ b/paddle/operators/modified_huber_loss_op.cc
@@ -21,7 +21,6 @@ class ModifiedHuberLossOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "X must be initialized.");
     PADDLE_ENFORCE(ctx->HasInput("Y"), "Y must be initialized.");
@@ -73,7 +72,6 @@ class ModifiedHuberLossGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "X must be initialized.");
     PADDLE_ENFORCE(ctx->HasInput("Y"), "Y must be initialized.");
diff --git a/paddle/operators/mul_op.cc b/paddle/operators/mul_op.cc
index ec0683d8875a945746b676a1f859e614af557441..943f81e94933bedd249086ef51ce2d0510c66a1c 100644
--- a/paddle/operators/mul_op.cc
+++ b/paddle/operators/mul_op.cc
@@ -23,7 +23,6 @@ class MulOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) of MulOp should not be null.");
     PADDLE_ENFORCE(ctx->HasInput("Y"), "Input(Y) of MulOp should not be null.");
@@ -96,7 +95,6 @@ class MulOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should not be null");
     PADDLE_ENFORCE(ctx->HasInput("Y"), "Input(Y) should not be null");
diff --git a/paddle/operators/multiplex_op.cc b/paddle/operators/multiplex_op.cc
index 051051b051961c6da064bd9319460b3f41cea3e8..4d86769026e4b3e3040bdcb3bc6dc2edea58b4b0 100644
--- a/paddle/operators/multiplex_op.cc
+++ b/paddle/operators/multiplex_op.cc
@@ -23,7 +23,6 @@ class MultiplexOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Ids"), "Input(Ids) shouldn't be null.");
     PADDLE_ENFORCE(!ctx->Inputs("X").empty(),
@@ -51,6 +50,7 @@ class MultiplexOp : public framework::OperatorWithKernel {
     ctx->SetOutputDim("Out", in_dim);
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(ctx.MultiInput<Tensor>("X")[0]->type());
@@ -89,7 +89,6 @@ class MultiplexGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(!ctx->Inputs("X").empty(), "Input(X) should not be null.");
     PADDLE_ENFORCE(!ctx->Outputs(framework::GradVarName("X")).empty(),
@@ -105,6 +104,7 @@ class MultiplexGradOp : public framework::OperatorWithKernel {
     ctx->SetOutputsDim(framework::GradVarName("X"), d_ins);
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(ctx.MultiInput<Tensor>("X")[0]->type());
diff --git a/paddle/operators/pad_op.cc b/paddle/operators/pad_op.cc
index 2f26ada85e477a6e5cd24c881f6369548331e8d0..73a0b8baff530840ddd0d4c65cd4c060ab18e401 100644
--- a/paddle/operators/pad_op.cc
+++ b/paddle/operators/pad_op.cc
@@ -23,7 +23,6 @@ class PadOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) of PadOp should not be null.");
     PADDLE_ENFORCE(ctx->HasOutput("Out"),
@@ -97,7 +96,6 @@ class PadOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should not be null");
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
diff --git a/paddle/operators/pool_op.h b/paddle/operators/pool_op.h
index f6169e05b3cdea621d26873185b2544f7d0fc188..ada956501918cc92a2d30ebb8d0c42453acd2839 100644
--- a/paddle/operators/pool_op.h
+++ b/paddle/operators/pool_op.h
@@ -28,7 +28,6 @@ class PoolOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override;
 };
 
@@ -36,7 +35,6 @@ class PoolOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override;
 };
 
diff --git a/paddle/operators/pool_with_index_op.cc b/paddle/operators/pool_with_index_op.cc
index 8eee20c2a9b6ce734a695ff36774bf51d0ad88be..29d0322a27b71fe8d335703e228969c084f5139f 100644
--- a/paddle/operators/pool_with_index_op.cc
+++ b/paddle/operators/pool_with_index_op.cc
@@ -27,7 +27,6 @@ class MaxPoolWithIndexOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "X(Input) of Pooling should not be null.");
@@ -72,7 +71,6 @@ class MaxPoolWithIndexOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Mask"), "Input(Mask) must not be null.");
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) must not be null.");
diff --git a/paddle/operators/prelu_op.cc b/paddle/operators/prelu_op.cc
index 166fe2682422c61a264c88b8683752ee323e940e..eef2e34eaacf59b9adacb343e9a0091ebabeaea3 100644
--- a/paddle/operators/prelu_op.cc
+++ b/paddle/operators/prelu_op.cc
@@ -25,7 +25,6 @@ class PReluOp : public framework::OperatorWithKernel {
           const framework::AttributeMap &attrs)
       : OperatorWithKernel(type, inputs, outputs, attrs) {}
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should not be null");
     PADDLE_ENFORCE(ctx->HasInput("Alpha"), "Input(Alpha) should not be null");
@@ -62,7 +61,6 @@ class PReluGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) must not be null.");
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
diff --git a/paddle/operators/rank_loss_op.cc b/paddle/operators/rank_loss_op.cc
index e0abbc4db1723e297c313d50fc1f9cbb77acb9f3..17ef2b1d01bd37abf2ece97ed0a307c2f1bf7e6f 100644
--- a/paddle/operators/rank_loss_op.cc
+++ b/paddle/operators/rank_loss_op.cc
@@ -24,7 +24,6 @@ class RankLossOp : public framework::OperatorWithKernel {
              const framework::AttributeMap &attrs)
       : OperatorWithKernel(type, inputs, outputs, attrs) {}
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     // input check
     PADDLE_ENFORCE(ctx->HasInput("Label"), "Input(Label) shouldn't be null");
@@ -89,7 +88,6 @@ class RankLossGradOp : public framework::OperatorWithKernel {
                  const framework::AttributeMap &attrs)
       : OperatorWithKernel(type, inputs, outputs, attrs) {}
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Label"), "Input(Label) shouldn't be null.");
     PADDLE_ENFORCE(ctx->HasInput("Left"), "Input(Left) shouldn't be null.");
diff --git a/paddle/operators/reduce_op.cc b/paddle/operators/reduce_op.cc
index 005f88b57cb47b2c00f9a81da8afa49439665a22..5e878353ce978830ede03ca6284719615ed39718 100644
--- a/paddle/operators/reduce_op.cc
+++ b/paddle/operators/reduce_op.cc
@@ -23,7 +23,6 @@ class ReduceOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of ReduceOp should not be null.");
@@ -57,7 +56,6 @@ class ReduceGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should not be null.");
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
diff --git a/paddle/operators/reshape_op.cc b/paddle/operators/reshape_op.cc
index 3cd54930a0919b7c6aad624b442eb15167b4c354..a8eb8d45eec214842ee756a260127b9d0aacb0f4 100644
--- a/paddle/operators/reshape_op.cc
+++ b/paddle/operators/reshape_op.cc
@@ -25,7 +25,6 @@ class ReshapeOp : public framework::OperatorWithKernel {
             const framework::AttributeMap &attrs)
       : OperatorWithKernel(type, inputs, outputs, attrs) {}
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     // input check
     PADDLE_ENFORCE(ctx->HasInput("X"),
@@ -93,7 +92,6 @@ class ReshapeGradOp : public framework::OperatorWithKernel {
                 const framework::AttributeMap &attrs)
       : OperatorWithKernel(type, inputs, outputs, attrs) {}
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) shouldn't be null.");
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
diff --git a/paddle/operators/rmsprop_op.cc b/paddle/operators/rmsprop_op.cc
index ada6f2bc3cd5de0424139144d8c0696158c319d9..fd5567a365c4c843de3b8aec7fa77164f16644a4 100644
--- a/paddle/operators/rmsprop_op.cc
+++ b/paddle/operators/rmsprop_op.cc
@@ -21,7 +21,6 @@ class RmspropOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Param"),
                    "Input(Param) of RmspropOp should not be null.");
diff --git a/paddle/operators/scale_op.cc b/paddle/operators/scale_op.cc
index ac297da6b72250eaa5eb6ea2177fbcc7a6c1ec56..7f1a21bea72992307a05d50e7a0600ee763dd813 100644
--- a/paddle/operators/scale_op.cc
+++ b/paddle/operators/scale_op.cc
@@ -25,7 +25,6 @@ class ScaleOp : public framework::OperatorWithKernel {
           const framework::AttributeMap &attrs)
       : OperatorWithKernel(type, inputs, outputs, attrs) {}
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of ScaleOp should not be null.");
@@ -56,7 +55,6 @@ class ScaleGradMaker : public framework::SingleGradOpDescMaker {
  public:
   using framework::SingleGradOpDescMaker::SingleGradOpDescMaker;
 
- protected:
   std::unique_ptr<framework::OpDescBind> Apply() const override {
     auto *grad_op = new framework::OpDescBind();
     grad_op->SetType("scale");
diff --git a/paddle/operators/scatter_op.cc b/paddle/operators/scatter_op.cc
index fbea01a8db007a5b8cfe17f545f1cce6ecff3afb..62e6c70b4513fdfab1c563b6b23f36292fb6486a 100644
--- a/paddle/operators/scatter_op.cc
+++ b/paddle/operators/scatter_op.cc
@@ -22,7 +22,6 @@ class ScatterOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Ref"),
                    "Input(Ref) of ScatterOp should not be null.");
@@ -49,6 +48,7 @@ class ScatterOp : public framework::OperatorWithKernel {
     ctx->SetOutputDim("Out", ref_dims);
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(ctx.Input<Tensor>("Ref")->type());
@@ -59,13 +59,13 @@ class ScatterGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     ctx->SetOutputDim(framework::GradVarName("Updates"),
                       ctx->GetInputDim("Updates"));
     ctx->SetOutputDim(framework::GradVarName("Ref"), ctx->GetInputDim("Ref"));
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(ctx.Input<Tensor>("Ref")->type());
diff --git a/paddle/operators/sequence_concat_op.cc b/paddle/operators/sequence_concat_op.cc
index 287fb1942e4a2b17f6d51c9a6b7f6fb71fbaa601..1fce96cdfe20fc3ab33a3cd00e9a03833c9b94f8 100644
--- a/paddle/operators/sequence_concat_op.cc
+++ b/paddle/operators/sequence_concat_op.cc
@@ -21,7 +21,6 @@ class SequenceConcatOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInputs("X"),
                    "Inputs(X) of SequenceConcatOp should not be null.");
@@ -105,7 +104,6 @@ class SequenceConcatGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
                    "The gradient of Out should not be null.");
diff --git a/paddle/operators/sequence_pool_op.cc b/paddle/operators/sequence_pool_op.cc
index 8dc4a59ba861237680b99c0d686e3dcb21b8071a..e3f5d509a85537669237b8fd0ed44efe8abb6874 100644
--- a/paddle/operators/sequence_pool_op.cc
+++ b/paddle/operators/sequence_pool_op.cc
@@ -21,7 +21,6 @@ class SequencePoolOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of SequencePoolOp should not be null.");
@@ -72,7 +71,6 @@ class SequencePoolGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
                    "Gradient of Out should not be null.");
diff --git a/paddle/operators/sequence_softmax_op.cc b/paddle/operators/sequence_softmax_op.cc
index ea217ba4597c24ec323c6509f097874d977fcf81..c891ab1fdcbb167453462c45b00b4632e663dd0e 100644
--- a/paddle/operators/sequence_softmax_op.cc
+++ b/paddle/operators/sequence_softmax_op.cc
@@ -21,7 +21,6 @@ class SequenceSoftmaxOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of SequenceSoftmaxOp should not be null.");
@@ -66,7 +65,6 @@ class SequenceSoftmaxGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Out"),
                    "Input(Out) of SequenceSoftmaxGradOp should not be null.");
diff --git a/paddle/operators/sgd_op.cc b/paddle/operators/sgd_op.cc
index 2a6a162a02507fa42c5ecbba59384f9c32aba7a9..0f78eeab9bc643a1a70c4b6ab02a160bbeda2b33 100644
--- a/paddle/operators/sgd_op.cc
+++ b/paddle/operators/sgd_op.cc
@@ -21,7 +21,6 @@ class SGDOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Param"),
                    "Input(Param) of SGDOp should not be null.");
diff --git a/paddle/operators/sigmoid_cross_entropy_with_logits_op.cc b/paddle/operators/sigmoid_cross_entropy_with_logits_op.cc
index b6653e1cc754bd626f04c28c42ce59f83c2fc87f..e781c8db208464cb94d94d1914e50f5aba3db2c6 100644
--- a/paddle/operators/sigmoid_cross_entropy_with_logits_op.cc
+++ b/paddle/operators/sigmoid_cross_entropy_with_logits_op.cc
@@ -23,7 +23,6 @@ class SigmoidCrossEntropyWithLogitsOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should be not null.");
     PADDLE_ENFORCE(ctx->HasInput("Labels"),
@@ -52,7 +51,6 @@ class SigmoidCrossEntropyWithLogitsGradOp
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should be not null.");
     PADDLE_ENFORCE(ctx->HasInput("Labels"),
diff --git a/paddle/operators/smooth_l1_loss_op.cc b/paddle/operators/smooth_l1_loss_op.cc
index 91391dc945be3d3d94966339bf9232eb21dcc38f..a4f0f37764667c43d48c6aa7646d61cdf4f3fd2d 100644
--- a/paddle/operators/smooth_l1_loss_op.cc
+++ b/paddle/operators/smooth_l1_loss_op.cc
@@ -21,7 +21,6 @@ class SmoothL1LossOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "X must be initialized.");
     PADDLE_ENFORCE(ctx->HasInput("Y"), "Y must be initialized.");
@@ -93,7 +92,6 @@ class SmoothL1LossGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     auto in_dims = ctx->GetInputDim("X");
     auto out_dims = ctx->GetInputDim(framework::GradVarName("Out"));
diff --git a/paddle/operators/softmax_op.cc b/paddle/operators/softmax_op.cc
index 4c131ed44de1c1567193c7cabff6ddf2dc63d9be..00fd0b32a9b3c0dd9fedf7b7621b1f15e5c4ce93 100644
--- a/paddle/operators/softmax_op.cc
+++ b/paddle/operators/softmax_op.cc
@@ -21,7 +21,6 @@ class SoftmaxOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of SoftmaxOp should not be null.");
@@ -68,7 +67,6 @@ class SoftmaxOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Y"), "Input(Y) should be not null.");
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Y")),
diff --git a/paddle/operators/softmax_with_cross_entropy_op.cc b/paddle/operators/softmax_with_cross_entropy_op.cc
index 9121609f10e6aba6bcb999f2a9cc436412e212b5..942fbb42df8bb90b86bd097832a15b320a857750 100644
--- a/paddle/operators/softmax_with_cross_entropy_op.cc
+++ b/paddle/operators/softmax_with_cross_entropy_op.cc
@@ -82,7 +82,6 @@ class SoftmaxWithCrossEntropyOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("Logits"),
                    "Input(Logits) should be not null.");
@@ -117,6 +116,7 @@ class SoftmaxWithCrossEntropyOp : public framework::OperatorWithKernel {
     ctx->ShareLoD("Logits", /*->*/ "Loss");
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(ctx.Input<Tensor>("Logits")->type());
@@ -127,7 +127,6 @@ class SoftmaxWithCrossEntropyOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Loss")),
                    "Input(Loss@Grad) should not be null.");
@@ -156,6 +155,7 @@ class SoftmaxWithCrossEntropyOpGrad : public framework::OperatorWithKernel {
                       ctx->GetInputDim("Softmax"));
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return framework::ToDataType(
diff --git a/paddle/operators/split_op.cc b/paddle/operators/split_op.cc
index d5dd4df2a2a6f424421ae7f117c26acff08d37d0..4a6c50f7970208b0f4141aa057bd0db715fb6152 100644
--- a/paddle/operators/split_op.cc
+++ b/paddle/operators/split_op.cc
@@ -23,7 +23,6 @@ class SplitOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of SplitOp should not be null.");
diff --git a/paddle/operators/squared_l2_distance_op.cc b/paddle/operators/squared_l2_distance_op.cc
index cce4e527c36bc0f4735165ff88ebba85b00eb898..e360c19b47eae7fc32ae66f9e4e3873bff211b04 100644
--- a/paddle/operators/squared_l2_distance_op.cc
+++ b/paddle/operators/squared_l2_distance_op.cc
@@ -21,7 +21,6 @@ class SquaredL2DistanceOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of SquaredL2DistanceOp should not be null.");
@@ -85,7 +84,6 @@ class SquaredL2DistanceGradOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
                    "Gradient of Out should not be null");
diff --git a/paddle/operators/sum_op.cc b/paddle/operators/sum_op.cc
index 573487b83590c132d5a4379a4b2762fbc16c04bc..5214a8413e8f7b957015985496fe8fb4b4f8b323 100644
--- a/paddle/operators/sum_op.cc
+++ b/paddle/operators/sum_op.cc
@@ -21,7 +21,6 @@ class SumOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInputs("X"), "Inputs(X) should not be null");
     auto x_dims = ctx->GetInputsDim("X");
diff --git a/paddle/operators/top_k_op.cc b/paddle/operators/top_k_op.cc
index c95481991229dd40e162094ccbf15de8ab627c8b..d5c2c91a5fb0f639ea84d13e27de8271218da54f 100644
--- a/paddle/operators/top_k_op.cc
+++ b/paddle/operators/top_k_op.cc
@@ -21,7 +21,6 @@ class TopkOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext *ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"),
                    "Input(X) of TopkOp should not be null.");
diff --git a/paddle/operators/transpose_op.cc b/paddle/operators/transpose_op.cc
index 1101bbe3efe3d313400663ade561063da4e34dfd..d785e57c830439ad80005d9a3d4bb77faf1ae1b9 100644
--- a/paddle/operators/transpose_op.cc
+++ b/paddle/operators/transpose_op.cc
@@ -23,7 +23,6 @@ class TransposeOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should not be null");
     PADDLE_ENFORCE(ctx->HasOutput("Out"), "Output(Out) should not be null");
@@ -92,7 +91,6 @@ class TransposeOpGrad : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasInput("X"), "Input(X) should not be null");
     PADDLE_ENFORCE(ctx->HasInput(framework::GradVarName("Out")),
diff --git a/paddle/operators/uniform_random_op.cc b/paddle/operators/uniform_random_op.cc
index 75928f1ec818ab028ea06cfa72273fb99430c3c8..612bdd70db28f2c1fbeb66456fae4ca865530f1f 100644
--- a/paddle/operators/uniform_random_op.cc
+++ b/paddle/operators/uniform_random_op.cc
@@ -46,7 +46,6 @@ class UniformRandomOp : public framework::OperatorWithKernel {
  public:
   using framework::OperatorWithKernel::OperatorWithKernel;
 
- protected:
   void InferShape(framework::InferShapeContext* ctx) const override {
     PADDLE_ENFORCE(ctx->HasOutput("Out"),
                    "Output(Out) of UniformRandomOp should not be null.");
@@ -63,6 +62,7 @@ class UniformRandomOp : public framework::OperatorWithKernel {
     ctx->SetOutputDim("Out", framework::make_ddim(temp));
   }
 
+ protected:
   framework::DataType IndicateDataType(
       const framework::ExecutionContext& ctx) const override {
     return static_cast<framework::DataType>(Attr<int>("data_type"));