Re: [PATCH v2] fs/nfsd: Delete invalid assignment statements in nfsd4_decode_exchange_id

From: J. Bruce Fields
Date: Thu Aug 02 2018 - 12:04:32 EST


On Thu, Aug 02, 2018 at 01:00:26PM +0000, Nixiaoming wrote:
> On Wednesday, August 01, 2018 11:18 PM , J. Bruce Fields wrote:
> >On Mon, Jul 23, 2018 at 09:57:11AM +0800, nixiaoming wrote:
> >> READ_BUF(8);
> >> dummy = be32_to_cpup(p++);
> >> dummy = be32_to_cpup(p++);
> >> ...
> >> READ_BUF(4);
> >> dummy = be32_to_cpup(p++);
> >>
> >> Assigning value to "dummy" here, but that stored value
> >> is overwritten before it can be used.
> >> At the same time READ_BUF() will re-update the pointer p.
> >>
> >> delete invalid assignment statements
> >
> >Thanks, applying with a minor comment tweak to clarify that we're
> >intentionally not reading these:
> >
> >- /* ssp_window and ssp_num_gss_handles */
> >+ /* ignore ssp_window and ssp_num_gss_handles: */
> > READ_BUF(8);
> > break;
> >
> >--b.
> >
>
> Thanks for your advice
> I will update the patch as soon as possible according to your advice.

I've taken care of it, no need to update.

--b.