BHND_HWREV_INVALID
#define BHND_HWREV_ANY { BHND_HWREV_INVALID, BHND_HWREV_INVALID }
((_m)->start == BHND_HWREV_INVALID && (_m)->end == BHND_HWREV_INVALID)
#define BHND_HWREV_GTE(_start) BHND_HWREV_RANGE(_start, BHND_HWREV_INVALID)
if (desc->start != BHND_HWREV_INVALID &&
if (desc->end != BHND_HWREV_INVALID &&