ZFS_NUM_LEGACY_HISTORY_EVENTS
if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) {
const char *zfs_history_event_names[ZFS_NUM_LEGACY_HISTORY_EVENTS] = {
extern const char *zfs_history_event_names[ZFS_NUM_LEGACY_HISTORY_EVENTS];