> > Hi, Bean > > > > On Mon, 2020-06-15 at 16:23 +0900, Daejun Park wrote: > > > +void ufsf_scan_features(struct ufs_hba *hba) > > > +{ > > > + int ret; > > > + > > > + init_waitqueue_head(&hba->ufsf.sdev_wait); > > > + atomic_set(&hba->ufsf.slave_conf_cnt, 0); > > > + > > > + if (hba->dev_info.wspecversion >= HPB_SUPPORTED_VERSION && > > > + (hba->dev_info.b_ufs_feature_sup & UFS_DEV_HPB_SUPPORT)) > > > > How about removing this check "(hba->dev_info.wspecversion >= > > HPB_SUPPORTED_VERSION" since ufs with lower version than v3.1 can add > > HPB feature by FFU, > > if (hba->dev_info.b_ufs_feature_sup &UFS_FEATURE_SUPPORT_HPB_BIT) is > > enough. > OK, changing it seems no problem. But I want to know what other people > think > about this version checking code. HPB1.0 isn't part of ufs3.1, but published only later. Allowing earlier versions will required to quirk the descriptor sizes. I see Bean's point here, but I vote for adding it in a single quirk, when the time comes. Thanks, Avri