diff --git a/lite/backends/arm/math/conv5x5s1_depthwise_fp32.cc b/lite/backends/arm/math/conv5x5s1_depthwise_fp32.cc
index d898f5c406f0e9b590139cc2f7ef02d876282589..da9298a57272409acbe4daceeb6640e67829910f 100644
--- a/lite/backends/arm/math/conv5x5s1_depthwise_fp32.cc
+++ b/lite/backends/arm/math/conv5x5s1_depthwise_fp32.cc
@@ -35,6 +35,7 @@ void conv_depthwise_5x5s1_bias(float* dout,
                                int pad_left,
                                int pad_right,
                                ARMContext* ctx);
+
 void conv_depthwise_5x5s1_bias_relu(float* dout,
                                     const float* din,
                                     const float* weights,
@@ -51,6 +52,7 @@ void conv_depthwise_5x5s1_bias_relu(float* dout,
                                     int pad_left,
                                     int pad_right,
                                     ARMContext* ctx);
+
 void conv_depthwise_5x5s1_bias_relu6(float* dout,
                                      const float* din,
                                      const float* weights,
@@ -68,6 +70,7 @@ void conv_depthwise_5x5s1_bias_relu6(float* dout,
                                      int pad_left,
                                      int pad_right,
                                      ARMContext* ctx);
+
 void conv_depthwise_5x5s1_bias_leakyRelu(float* dout,
                                          const float* din,
                                          const float* weights,
@@ -85,6 +88,7 @@ void conv_depthwise_5x5s1_bias_leakyRelu(float* dout,
                                          int pad_left,
                                          int pad_right,
                                          ARMContext* ctx);
+
 void conv_depthwise_5x5s1_fp32(float* dout,
                                const float* din,
                                const float* weights,
@@ -190,6 +194,7 @@ void conv_depthwise_5x5s1_fp32(float* dout,
                               ctx);
   }
 }
+
 // clang-format off
 #ifdef __aarch64__
 #define COMPUTE_ONE_LINE_S1_PRE                        \
diff --git a/lite/kernels/arm/conv_depthwise.cc b/lite/kernels/arm/conv_depthwise.cc
index c1f7b2bd60559cf528d277f409a428fbad93174f..675161af4434abe072898666d23443de375b159a 100644
--- a/lite/kernels/arm/conv_depthwise.cc
+++ b/lite/kernels/arm/conv_depthwise.cc
@@ -57,7 +57,6 @@ void DepthwiseConv<PRECISION(kFloat), PRECISION(kFloat)>::PrepareForRun() {
     kernel_func_name_ = "conv_depthwise_3x3_fp32";
 #endif
   } else if (kw == 5) {
-    // VLOG(5) << "invoke 5x5 dw conv fp32";
     bool pads_five = (paddings[0] < 5) || (paddings[2] < 5);
     auto strides = param.strides;
     if (ch_four && pads_five && win >= kw && hin >= kw &&