zio: driver: zio-loop: copy_to_user is defined in linux/uaccess.h with kernel > 4.14
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it> (CERN)
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