[PATCH 3/4] ACPI,PCI,IRQ: add PCI possible only for PCI interrupts

[Sinan Kaya]

acpi_irq_penalty_init is pre-calculating PCI_POSSIBLE penalty for
ISA interrupts at power up. Remove this from PCI dynamic penalty
path.

Signed-off-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
---
 drivers/acpi/pci_link.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index df58153..a7068a4 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -481,13 +481,15 @@ static int acpi_irq_pci_sharing_penalty(int irq)
 			(link->irq.initialized == 1))
 			penalty += PIRQ_PENALTY_PCI_USING;
 
-		/*
-		 * penalize the IRQs PCI might use, but not as severely.
-		 */
-		for (i = 0; i < link->irq.possible_count; i++)
-			if (link->irq.possible[i] == irq)
-				penalty += PIRQ_PENALTY_PCI_POSSIBLE /
-					link->irq.possible_count;
+		if (link->irq.possible[i] >= ACPI_MAX_ISA_IRQS) {
+			/*
+			 * penalize the IRQs PCI might use, but not as severely.
+			 */
+			for (i = 0; i < link->irq.possible_count; i++)
+				if (link->irq.possible[i] == irq)
+					penalty += PIRQ_PENALTY_PCI_POSSIBLE /
+						link->irq.possible_count;
+		}
 	}
 
 	return penalty;
-- 
1.9.1


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