dev_map_index_hash
dev_map_index_hash(dtab, idx));
head = dev_map_index_hash(dtab, i);
head = dev_map_index_hash(dtab, i);
struct hlist_head *head = dev_map_index_hash(dtab, key);
head = dev_map_index_hash(dtab, i);
head = dev_map_index_hash(dtab, i);
head = dev_map_index_hash(dtab, i);