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Groups > linux.kernel > #1495604

[PATCH V2 2/3] ACPI, PCI IRQ: add PCI_USING penalty for ISA interrupts

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The change introduced in commit 103544d86976 ("ACPI,PCI,IRQ: reduce
resource requirements") removed PCI_USING penalty from
acpi_pci_link_allocate function as there is no longer a fixed size penalty
array for both PCI and IRQ interrupts.

We need to add the PCI_USING penalty for ISA interrupts too if the link is
in use and matches our ISA IRQ number.

Tested-by: Jonathan Liu <net147@gmail.com>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/acpi/pci_link.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index f3792f4..06c2a11 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -620,6 +620,10 @@ static int acpi_pci_link_allocate(struct acpi_pci_link *link)
 			    acpi_device_bid(link->device));
 		return -ENODEV;
 	} else {
+		if (link->irq.active < ACPI_MAX_IRQS)
+			acpi_irq_penalty[link->irq.active] +=
+				PIRQ_PENALTY_PCI_USING;
+
 		printk(KERN_WARNING PREFIX "%s [%s] enabled at IRQ %d\n",
 		       acpi_device_name(link->device),
 		       acpi_device_bid(link->device), link->irq.active);
-- 
1.9.1

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[PATCH V2 2/3] ACPI, PCI IRQ: add PCI_USING penalty for ISA interrupts Sinan Kaya <okaya@codeaurora.org> - 2016-10-04 23:20 +0200
  Re: [PATCH V2 2/3] ACPI, PCI IRQ: add PCI_USING penalty for ISA  interrupts Bjorn Helgaas <helgaas@kernel.org> - 2016-10-12 21:10 +0200

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