TPM_CRB_REGS_SIZE
static_assert(sizeof(struct tpm_crb_regs) == TPM_CRB_REGS_SIZE,
if (off > TPM_CRB_REGS_SIZE || off + size >= TPM_CRB_REGS_SIZE) {
#define TPM_CRB_CONTROL_AREA_SIZE TPM_CRB_REGS_SIZE