Re: [Xen-ia64-devel] [PATCH 1/7][SMP] add volatile to mpt_table

[Alex Williamson <alex.williamson@xxxxxx>]

On Fri, 2006-06-16 at 10:38 +0900, Isaku Yamahata wrote:

> The below two lines follows.
> 
>         map_start = mpt_table + (__pa(start) >> PAGE_SHIFT);
>         map_end   = mpt_table + (__pa(end) >> PAGE_SHIFT);
> 
> Gcc produces warnings without volatile.

Isaku,

   I think it would be more clear to cast mpt_table as a non-volatile
than to introduce new volatile variables to avoid compiler warnings.
These has me confused as well.  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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