Re: [Patch] libffi: Add MIPS64 support.

[David Daney <ddaney at avtrex dot com>]

Maciej W. Rozycki wrote:
> On Thu, 9 Aug 2007, Richard Sandiford wrote:
>
> > > In the first case, you are probably correct. We are copying the pointer 
> > > into a wider  type.   In practice it does not matter because all valid 
> > > user space pointers have the high bit clear so there would never be a 
> > > case where the not sign extending would produce a different result than 
> > > if you did sign extend.
> > Ah, so we don't support running libffi from kernel space?  I was assuming
> > we needed to cope with both.  If we don't, it is indeed a non-issue.
>
>  It sounds like carelessness to me -- I would watch out.

Indeed.  I will fix it before committing.

David Daney