Re: [Qemu-devel] [PATCH v3 2/4] ppc/xics: An ICS with offset 0 is assumed to be uninitialized

[David Gibson]

On Thu, Jul 07, 2016 at 11:24:16PM +0530, Nikunj A Dadhania wrote:
> From: Benjamin Herrenschmidt <address@hidden>
> 
> This will make life easier for dealing with dynamically configured
> ICSes such as PHB3
> 
> Signed-off-by: Benjamin Herrenschmidt <address@hidden>
> Reviewed-by: David Gibson <address@hidden>
> Signed-off-by: Nikunj A Dadhania <address@hidden>

This doesn't do anything without the ics list change, but it's also
harmless, so I've merged it to ppc-for-2.7.

> ---
>  include/hw/ppc/xics.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
> index 6ad3057..8c22daf 100644
> --- a/include/hw/ppc/xics.h
> +++ b/include/hw/ppc/xics.h
> @@ -150,7 +150,7 @@ struct ICSState {
>  
>  static inline bool ics_valid_irq(ICSState *ics, uint32_t nr)
>  {
> -    return (nr >= ics->offset)
> +    return (ics->offset != 0) && (nr >= ics->offset)
>          && (nr < (ics->offset + ics->nr_irqs));
>  }
>  

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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