Re: [PATCH 20/28] ia64/xen: domU xen machine vector without dma api.

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

yamahata@xxxxxxxxxxxxx wrote:
> diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
> index 78f28d8..9c17a46 100644
> --- a/arch/ia64/kernel/acpi.c
> +++ b/arch/ia64/kernel/acpi.c
> @@ -118,6 +118,10 @@ acpi_get_sysname(void)
>  		return "hpzx1";
>  	} else if (!strcmp(hdr->oem_id, "SGI")) {
>  		return "sn2";
> +#ifdef CONFIG_XEN
> +	} else if (is_running_on_xen() && !strcmp(hdr->oem_id, "XEN")) {
> +		return "xen";
> +#endif
>  	}

Is the #ifdef necessary?  Couldn't you make is_running_on_xen() just 
evaluate to 0 in the non-Xen case?

   J
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