Re: [PATCH 1/2] PCI Hotplug: acpiphp wants a 64-bit _SUN

From: Ville Syrjälä
Date: Thu Dec 11 2008 - 14:55:57 EST


On Thu, Dec 11, 2008 at 11:16:44AM -0700, Alex Chiang wrote:
> From: Justin Chen <justin.chen@xxxxxx>
>
> Certain HP machines require the full 64 bits of _SUN as allowed
> by the ACPI spec. Without this change, we get name collisions in
> the lower 32 bits of the _SUN returned by firmware.
>
> Signed-off-by: Justin Chen <justin.chen@xxxxxx>
> Signed-off-by: Alex Chiang <achiang@xxxxxx>
> ---
> diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
> index f9e244d..9bcb6cb 100644
> --- a/drivers/pci/hotplug/acpiphp.h
> +++ b/drivers/pci/hotplug/acpiphp.h
> @@ -113,7 +113,7 @@ struct acpiphp_slot {
>
> u8 device; /* pci device# */
>
> - u32 sun; /* ACPI _SUN (slot unique number) */
> + unsigned long long sun; /* ACPI _SUN (slot unique number) */

Why not make it u64 if that's what ACPI says it should be?

--
Ville Syrjälä
syrjala@xxxxxx
http://www.sci.fi/~syrjala/
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