[Xen-devel] [PATCH 10/10] xen/pci: Use 'acpi_gsi_to_irq' value unconditionally.

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

In the past we would only use the function's value if the
returned value was not equal to 'acpi_sci_override_gsi'. Meaning
that the INT_SRV_OVR values for global and source irq were different.
But it is OK to use the function's value even when the global
and source irq are the same.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 arch/x86/pci/xen.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index f07c419..1017c7b 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -407,10 +407,9 @@ static __init void xen_setup_acpi_sci(void)
         * the ACPI interpreter and keels over since IRQ 9 has not been
         * setup as we had setup IRQ 20 for it).
         */
-       /* Check whether the GSI != IRQ */
        if (acpi_gsi_to_irq(gsi, &irq) == 0) {
-               if (irq >= 0 && irq != gsi)
-                       /* Bugger, we MUST have that IRQ. */
+               /* Use the provided value if it's valid. */
+               if (irq >= 0)
                        gsi_override = irq;
        }
 
-- 
1.7.4.1


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