pub unsafe extern "C" fn cudnnGetConvolutionBackwardDataWorkspaceSize(
handle: *mut cudnnContext,
wDesc: *mut cudnnFilterStruct,
dyDesc: *mut cudnnTensorStruct,
convDesc: *mut cudnnConvolutionStruct,
dxDesc: *mut cudnnTensorStruct,
algo: cudnnConvolutionBwdDataAlgo_t,
sizeInBytes: *mut usize
) -> cudnnStatus_t