haojin2 commented on a change in pull request #11024: concat of CSR NDArrays on
first dimension
URL: https://github.com/apache/incubator-mxnet/pull/11024#discussion_r192551925
##########
File path: src/operator/nn/concat.cc
##########
@@ -146,7 +160,7 @@ inline static bool BackwardConcatStorageType(const
nnvm::NodeAttrs& attrs,
dispatch_mode, wanted_mode);
}
-#if MXNET_USE_MKLDNN == 1
+
Review comment:
nit: too many blank lines here
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