Re: [PATCH 1/1] - Altix: more ACPI PRT support

[Andrew Morton <akpm@osdl.org>]

On Fri, 02 Feb 2007 14:54:12 -0600
John Keller <jpk@sgi.com> wrote:

> The SN Altix platform does not conform to the 
> IOSAPIC IRQ routing model. Add code in acpi_unregister_gsi()
> to check if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM) and
> return.
> 
> Signed-off-by: John Keller <jpk@sgi.com>
> ---
> 
> Due to an oversight, this code was not added previously when
> similar code was added to acpi_register_gsi().
> 
> http://marc.theaimsgroup.com/?l=linux-acpi&m=116680983430121&w=2
> 
>  arch/ia64/kernel/acpi.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> 
> Index: linux-2.6/arch/ia64/kernel/acpi.c
> ===================================================================
> --- linux-2.6.orig/arch/ia64/kernel/acpi.c	2007-02-02 14:44:31.000000000 -0600
> +++ linux-2.6/arch/ia64/kernel/acpi.c	2007-02-02 14:47:44.658143727 -0600
> @@ -609,6 +609,9 @@ EXPORT_SYMBOL(acpi_register_gsi);
>  
>  void acpi_unregister_gsi(u32 gsi)
>  {
> +	if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM)
> +		return;
> +
>  	iosapic_unregister_intr(gsi);
>  }

Given that the December 22 patch appears to be in mainline, and that this
patch is simple, I shall cheerily bypass maintainers and send it in for
2.6.20.