tcmu_hba
struct tcmu_hba *tcmu_hba;
tcmu_hba = kzalloc_obj(struct tcmu_hba);
if (!tcmu_hba)
tcmu_hba->host_id = host_id;
hba->hba_ptr = tcmu_hba;
struct tcmu_hba *hba = udev->hba->hba_ptr;