> > > On Fri, 2021-02-26 at 16:35 +0900, Daejun Park wrote: > > +static void ufshpb_set_unmap_cmd(unsigned char *cdb, struct > > ufshpb_region *rgn) > > +{ > > + cdb[0] = UFSHPB_WRITE_BUFFER; > > + cdb[1] = rgn ? UFSHPB_WRITE_BUFFER_INACT_SINGLE_ID : > > + UFSHPB_WRITE_BUFFER_INACT_ALL_ID; > > Here is wrong, > Valid HPB Region is (0 ~ (Ceiling( Region size calculated by > bHPBRegionSize )- 1) ). how do you know the region==0 is not > a single normal region? Please note that rgn here is a ufshpb_region *rgn Thanks, Avri > > Bean > > > > + if (rgn) > > + put_unaligned_be16(rgn->rgn_idx, &cdb[2]); > > + cdb[9] = 0x00; > > +} > >