Re: [RFC][PATCH] Expanding the size of "start" and "end" field in "struct resource"

[Kumar Gala <galak@kernel.crashing.org>]

On Mar 15, 2006, at 2:13 PM, Eric W. Biederman wrote:

> Kumar Gala <galak@kernel.crashing.org> writes:
>
> > On Mar 15, 2006, at 1:57 PM, Arjan van de Ven wrote:
> >
> > > > One of the possible solutions to this problem is that expand the  
> > > > size
> > > > of "start" and "end" to "unsigned long long". But whole of the  
> > > > PCI  and
> > > > driver code has been written assuming start and end to be  
> > > > unsigned  long
> > > > and compiler starts throwing warnings.
> > >
> > >
> > > please use dma_addr_t then instead of unsigned long long
> > >
> > > this is the right size on all platforms afaik (could a ppc64 person
> > > verify this?> ;)
> >
> > Actually we really just want "start" and "end" to be u64 on all   
> > platforms.
> > Linus was ok with this change but no one has gone through  and  
> > fixed everything
> > that would be required for it.
>
> Since it is faster to ask :)
>
> How is it that other pieces of code have problems?
> Warnings or something nasty?

Warnings primarily, however I think some places have assumptions  
about size that have to be looked at.

- kumar
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