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Subject[PATCH 1/1] - Altix: more ACPI PRT support
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);
}

-
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