Fix conv_mkldnn_op.cc which is causing CI failure

Author: Abhinav Arora

paddle/fluid/operators/conv_mkldnn_op.cc

@@ -72,10 +72,12 @@ class ConvMKLDNNOpKernel : public paddle::framework::OpKernel<T> {
     auto dst_md = platform::MKLDNNMemDesc(
         dst_tz, mkldnn::memory::data_type::f32, mkldnn::memory::format::nchw);
 
-    auto src_memory = mkldnn::memory({src_md, mkldnn_engine},
-                                     reinterpret_cast<void*>(input_data));
-    auto weights_memory = mkldnn::memory({weights_md, mkldnn_engine},
-                                         reinterpret_cast<void*>(filter_data));
+    auto src_memory =
+        mkldnn::memory({src_md, mkldnn_engine},
+                       reinterpret_cast<void*>(const_cast<T*>(input_data)));
+    auto weights_memory =
+        mkldnn::memory({weights_md, mkldnn_engine},
+                       reinterpret_cast<void*>(const_cast<T*>(filter_data)));
     auto dst_memory = mkldnn::memory({dst_md, mkldnn_engine}, output_data);
 
     std::shared_ptr<mkldnn::convolution_forward::primitive_desc> conv_pd =
@@ -180,9 +182,9 @@ class ConvMKLDNNGradOpKernel : public paddle::framework::OpKernel<T> {
         dst_tz, mkldnn::memory::data_type::f32, mkldnn::memory::format::nchw);
 
     // create memory
-    auto diff_dst_memory =
-        mkldnn::memory({diff_weights_md, mkldnn_engine},
-                       reinterpret_cast<void*>(output_grad_data));
+    auto diff_dst_memory = mkldnn::memory(
+        {diff_weights_md, mkldnn_engine},
+        reinterpret_cast<void*>(const_cast<T*>(output_grad_data)));
     // Retrieve conv_pd from device context
     auto conv_pd =
         std::static_pointer_cast<mkldnn::convolution_forward::primitive_desc>(
@@ -202,8 +204,9 @@ class ConvMKLDNNGradOpKernel : public paddle::framework::OpKernel<T> {
       auto diff_weights_memory =
           mkldnn::memory({diff_weights_md, mkldnn_engine},
                          reinterpret_cast<void*>(filter_grad_data));
-      auto src_memory = mkldnn::memory({src_md, mkldnn_engine},
-                                       reinterpret_cast<void*>(input_data));
+      auto src_memory =
+          mkldnn::memory({src_md, mkldnn_engine},
+                         reinterpret_cast<void*>(const_cast<T*>(input_data)));
 
       // create backward conv primitive for weights
       auto conv_bwd_weights_prim = mkldnn::convolution_backward_weights(
@@ -222,11 +225,12 @@ class ConvMKLDNNGradOpKernel : public paddle::framework::OpKernel<T> {
                                    strides, paddings, *conv_pd, mkldnn_engine);
 
       // create memory
-      auto diff_src_memory =
-          mkldnn::memory({diff_src_md, mkldnn_engine},
-                         reinterpret_cast<void*>(input_grad_data));
-      auto weights_memory = mkldnn::memory(
-          {weights_md, mkldnn_engine}, reinterpret_cast<void*>(filter_data));
+      auto diff_src_memory = mkldnn::memory(
+          {diff_src_md, mkldnn_engine},
+          reinterpret_cast<void*>(const_cast<T*>(input_grad_data)));
+      auto weights_memory =
+          mkldnn::memory({weights_md, mkldnn_engine},
+                         reinterpret_cast<void*>(const_cast<T*>(filter_data)));
 
       // create backward conv primitive for data
       auto conv_bwd_data_prim = mkldnn::convolution_backward_data(