From: Waiman Long on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1023#note_5508...
RHEL8 has a mark_tech_preview() function which should be called when a
tech preview feature is used. I don't know if ARK kernel has that or
not. Also I don't think we need to warn when cma_release() is called as
we already have one for cma_alloc().