cudnnSpatialTfGridGeneratorForward is declared twice in the cudnn.h file

Accelerated Computing GPU-Accelerated Libraries
1 
cudnnStatus_t CUDNNWINAPI cudnnSpatialTfGridGeneratorForward(
                                 cudnnHandle_t                              handle,
                                 const cudnnSpatialTransformerDescriptor_t  stDesc,
                                 const void                                *theta,
                                 void                                      *grid);

cudnnStatus_t CUDNNWINAPI cudnnSpatialTfGridGeneratorBackward(
                                 cudnnHandle_t                              handle,
                                 const cudnnSpatialTransformerDescriptor_t  stDesc,
                                 const void                                *dgrid,
                                 void                                      *dtheta);

cudnnStatus_t CUDNNWINAPI cudnnSpatialTfGridGeneratorForward(
                                 cudnnHandle_t                              handle,
                                 const cudnnSpatialTransformerDescriptor_t  stDesc,
                                 const void                                *theta,
                                 void                                      *grid);

A minor bug on line 1208.

2

Thanks for the reporting the issue. It will be fixed in the upcoming cudnn v5 final release