pub unsafe extern "C" fn cudnnGetConvolutionBackwardDataAlgorithm_v7(
handle: *mut cudnnContext,
filterDesc: *mut cudnnFilterStruct,
diffDesc: *mut cudnnTensorStruct,
convDesc: *mut cudnnConvolutionStruct,
gradDesc: *mut cudnnTensorStruct,
requestedAlgoCount: i32,
returnedAlgoCount: *mut i32,
perfResults: *mut cudnnConvolutionBwdDataAlgoPerfStruct
) -> cudnnStatus_t