Re: [PATCH v2 1/1] scsi: ufs: Fix unexpected values get from ufshcd_read_desc_param()

[Can Guo]

Hi Avri,

On 2020-10-22 14:37, Avri Altman wrote:
> > Since WB feature has been added, WB related sysfs entries can be 
> > accessed
> > even when an UFS device does not support WB feature. In that case, the
> > descriptors which are not supported by the UFS device may be wrongly
> > reported when they are accessed from their corrsponding sysfs entries.
> > Fix it by adding a sanity check of parameter offset against the actual
> > decriptor length.s
> This should be a bug fix IMO, and be dealt with similarly like
> ufshcd_is_wb_attrs or ufshcd_is_wb_flag.
> Thanks,
> Avri

Could you please elaborate on ufshcd_is_wb_attrs or ufshcd_is_wb_flag?
Sorry that I don't quite get it.

Thanks,

Can Guo.