pub unsafe extern "C" fn cudnnGetConvolutionBackwardFilterAlgorithm_v7(
handle: *mut cudnnContext,
srcDesc: *mut cudnnTensorStruct,
diffDesc: *mut cudnnTensorStruct,
convDesc: *mut cudnnConvolutionStruct,
gradDesc: *mut cudnnFilterStruct,
requestedAlgoCount: i32,
returnedAlgoCount: *mut i32,
perfResults: *mut cudnnConvolutionBwdFilterAlgoPerfStruct
) -> cudnnStatus_t