> > + err = ufshpb_fill_ppn_from_page(hpb, srgn->mctx, srgn_offset, 1, &ppn); > > + spin_unlock_irqrestore(&hpb->rgn_state_lock, flags); > > + if (unlikely(err < 0)) { > > + /* > > + * In this case, the region state is active, > > + * but the ppn table is not allocated. > > + * Make sure that ppn table must be allocated on > > + * active state. > > + */ > > + WARN_ON(true); > > + dev_err(hba->dev, "get ppn failed. err %d\n", err); > Maybe just pr_warn instead of risking crashing the machine over that? Why it crashing the machine? WARN_ON will just print kernel message. Thanks, Daejun