diff --git a/src/io/paddle_mobile.cpp b/src/io/paddle_mobile.cpp
index b3e0834e1df1b9b8656d3f7877180ccf31d45801..995cd175baa51bdc7fedbb43d6345cc5ce6e6be2 100644
--- a/src/io/paddle_mobile.cpp
+++ b/src/io/paddle_mobile.cpp
@@ -91,6 +91,7 @@ PMStatus PaddleMobile<Device, T>::Load(const PaddleMobileConfig &config) {
   }
 }
 
+template <typename Device, typename T>
 bool PaddleMobile<Device, T>::LoadCombinedMemory(
     size_t model_len, const uint8_t *model_buf, size_t combined_params_len,
     uint8_t *combined_params_buf, bool optimize, bool quantification,
diff --git a/src/operators/math/depthwise_conv3x3.cpp b/src/operators/math/depthwise_conv3x3.cpp
index 90edc3111b3f54255af01c1e511bd74955e75d35..292801b5f581d9301973de3cf852141391104222 100644
--- a/src/operators/math/depthwise_conv3x3.cpp
+++ b/src/operators/math/depthwise_conv3x3.cpp
@@ -253,7 +253,6 @@ void DepthwiseConv3x3s1p1(const framework::Tensor *input,
                           framework::Tensor *output, framework::Tensor *bias,
                           bool if_bias, bool if_relu) {
 #if __ARM_NEON
-  const float *bias_data = bias->data<float>();
   const int batch_size = static_cast<int>(input->dims()[0]);
   const int c = static_cast<int>(input->dims()[1]);
   const int h = static_cast<int>(input->dims()[2]);
@@ -267,6 +266,11 @@ void DepthwiseConv3x3s1p1(const framework::Tensor *input,
   const int lb = (h - 1) * w;
   const int rb = h * w - 1;
 
+  const float *bias_data;
+  if (if_bias) {
+    bias_data = bias->data<float>();
+  }
+
   float32x4_t zero = vdupq_n_f32(0.0);
 
   for (int b = 0; b < batch_size; ++b) {
@@ -1966,7 +1970,6 @@ void DepthwiseConv3x3s2p0(const framework::Tensor *input,
                           framework::Tensor *output, framework::Tensor *bias,
                           bool if_bias, bool if_relu) {
 #if __ARM_NEON
-
   const int batch_size = static_cast<int>(input->dims()[0]);
   const int input_channel = static_cast<int>(input->dims()[1]);
 
@@ -1983,7 +1986,12 @@ void DepthwiseConv3x3s2p0(const framework::Tensor *input,
     for (int c = 0; c < input_channel; c++) {
       const float *filter_data = filter->data<float>() + c * 9;
       const float *input_data = input->data<float>() + c * inhxw;
-      const float *bias_data = bias->data<float>() + c;
+      const float *bias_data;
+      float32x4_t biasv;
+      if (if_bias) {
+        bias_data = bias->data<float>() + c;
+        biasv = vld1q_dup_f32(bias_data);
+      }
       float *output_data = output->data<float>() + c * outhxw;
       float w00 = filter_data[0];
       float w01 = filter_data[1];
@@ -1994,7 +2002,6 @@ void DepthwiseConv3x3s2p0(const framework::Tensor *input,
       float w20 = filter_data[6];
       float w21 = filter_data[7];
       float w22 = filter_data[8];
-      float32x4_t biasv = vld1q_dup_f32(bias_data);
       for (int i = 0; i < output_height; i += 1) {
         for (int m = 0; m < output_width - 2; m += 3) {
           float *output_ptr = output_data + i * output_width + m;
diff --git a/src/operators/math/depthwise_conv5x5_int8.cpp b/src/operators/math/depthwise_conv5x5_int8.cpp
index 6685e728916898d5e4c25433ea5f69188a4cfb62..a92d48272f3c3abbc9c86a652521db4564498d2e 100644
--- a/src/operators/math/depthwise_conv5x5_int8.cpp
+++ b/src/operators/math/depthwise_conv5x5_int8.cpp
@@ -643,8 +643,8 @@ void DepthwiseConv5x5S1<int8_t, int32_t>(const framework::Tensor &input,
         for (int w = valid_w_end; w < output_w; ++w) {
           int padding = w + 5 - (padding_w + input_w);
           if (padding >= 5) {
-            *output_ptr0 = 0.f;
-            *output_ptr1 = 0.f;
+            *output_ptr0 = 0;
+            *output_ptr1 = 0;
           } else {
             int iw = w - valid_w_end;
             int32_t sum0 = input_ptr0[iw] * filter_ptr0[0] +
diff --git a/tools/pre-commit.hooks/cpplint.hook b/tools/pre-commit.hooks/cpplint.hook
index 06d4e92680bf5149ae6617573b48e26ea0c020d8..78ca3cfcdda52a223be609801e6b12ec58b79323 100644
--- a/tools/pre-commit.hooks/cpplint.hook
+++ b/tools/pre-commit.hooks/cpplint.hook
@@ -5,7 +5,7 @@ TOTAL_ERRORS=0
 # The trick to remove deleted files: https://stackoverflow.com/a/2413151
 for file in $(git diff --cached --name-status | awk '$1 != "D" {print $2}' | \
         grep -v ".pb.cpp" | grep -v ".pb.h" | grep -v ".pb-c.h" | grep -v ".pb-c.c" | \
-        grep -v "protobuf-c.h" | grep -v "protobuf-c.c" | grep -v "PaddleMobileCPU.h"); do
+        grep -v "protobuf-c.h" | grep -v "protobuf-c.c"); do
     cpplint $file;
     TOTAL_ERRORS=$(expr $TOTAL_ERRORS + $?);
 done