Re: [PATCH v2 3/3] scsi: ufs: cleanup ufs initialization path

[Bean Huo]

On Thu, 2020-05-28 at 14:58 +0000, Avri Altman wrote:
> Hi,
> 
> > From: Bean Huo <beanhuo@xxxxxxxxxx>
> > 
> > At UFS initialization stage, to get the length of the descriptor,
> > ufshcd_read_desc_length() being called 6 times.
> 
> May I suggest one more clarifying sentence to your commit log:
> "Instead, we will capture the descriptor size the first time we'll
> read it."
> 
> > This patch is to
> > delete unnecessary reduntant code, remove ufshcd_read_desc_length()
> 
> typo: redundant

fixed.
> 
> > and boost UFS initialization.
> > 
> > Signed-off-by: Bean Huo <beanhuo@xxxxxxxxxx>
> > +       if (desc_id >= QUERY_DESC_IDN_MAX) {
> >                 *desc_len = 0;
> >                 return -EINVAL;
> >         }
> 
> if (desc_id == QUERY_DESC_IDN_RFU_0 || desc_id ==
> QUERY_DESC_IDN_RFU_1)
> 	*desc_len = 0;
> else
> > +
> > +       *desc_len = hba->desc_size[desc_id];
> >         return 0;
> >  }
> >  EXPORT_SYMBOL(ufshcd_map_desc_id_to_length);
> > 
> > +static void ufshcd_update_desc_length(struct ufs_hba *hba,
> > +                                     enum desc_idn desc_id, int
> > desc_len)
> 
> desc_len is at most 255 so maybe u8?
> 
Avri
thanks, it will be changed in next version.


Bean