Re: [PATCH 03/18] nfsd: factor out a helper to decode nfstime4 values

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On Sun, Jan 11, 2015 at 12:42:42PM +0100, Christoph Hellwig wrote:
> On Fri, Jan 09, 2015 at 03:02:02PM -0800, Tom Haynes wrote:
> > 
> > > -			READ_BUF(12);
> > >  			len += 12;
> > 
> > I think this code makes it clear that the magic number 12 is the
> > same on both lines. With the change, that gets lost.
> > 
> > Do I think that the 12 will ever change? No.
> > 
> > Do I think this becomes more "magic"? Yes.
> 
> Sure. but the whole counting the number to be decoded in setattr
> is magic to start with.  

Agreed.

> I guess we could replace it with some magic
> pointer arithmetic on argp->p, but is that really worth it?  

Which is why I asked the leading questions. I see both sides,
but ultimately it is a nit considering the rest of the abuse.

I'm fine with you deciding it is still magic overall.

> Should
> be a separate patch for sure.
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