Which parts of CMSIS-DSP are used for CMSIS-NN? I'm asking because I want to disable as much options as possible of the CMSIS-DSP.
The functions supporting TensorFlow Lite framework is identified by the _s8 suffix and can be invoked from TFL micro. The functions are bit exact to TensorFlow Lite. Refer to the TensorFlow's documentation in  on how to run a TensorFlow Lite model using optimized CMSIS-NN kernels.