ACPI,PCI,IRQ: remove redundant code in acpi_irq_penalty_init()

acpi_irq_get_penalty is now calculating the penalty on the fly now.
No need to maintain global list of penalties or calculate them
at the init time. Removing duplicate code in acpi_irq_penalty_init.

Signed-off-by: Sinan Kaya <[email protected]>
Acked-by: Bjorn Helgaas <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: Sinan Kaya

arch/x86/pci/acpi.c

@@ -396,7 +396,6 @@ int __init pci_acpi_init(void)
 		return -ENODEV;
 
 	printk(KERN_INFO "PCI: Using ACPI for IRQ routing\n");
-	acpi_irq_penalty_init();
 	pcibios_enable_irq = acpi_pci_irq_enable;
 	pcibios_disable_irq = acpi_pci_irq_disable;
 	x86_init.pci.init_irq = x86_init_noop;

drivers/acpi/pci_link.c

@@ -520,42 +520,6 @@ static int acpi_irq_get_penalty(int irq)
 	return penalty;
 }
 
-int __init acpi_irq_penalty_init(void)
-{
-	struct acpi_pci_link *link;
-	int i;
-
-	/*
-	 * Update penalties to facilitate IRQ balancing.
-	 */
-	list_for_each_entry(link, &acpi_link_list, list) {
-
-		/*
-		 * reflect the possible and active irqs in the penalty table --
-		 * useful for breaking ties.
-		 */
-		if (link->irq.possible_count) {
-			int penalty =
-			    PIRQ_PENALTY_PCI_POSSIBLE /
-			    link->irq.possible_count;
-
-			for (i = 0; i < link->irq.possible_count; i++) {
-				if (link->irq.possible[i] < ACPI_MAX_ISA_IRQS)
-					acpi_isa_irq_penalty[link->irq.
-							 possible[i]] +=
-					    penalty;
-			}
-
-		} else if (link->irq.active &&
-				(link->irq.active < ACPI_MAX_ISA_IRQS)) {
-			acpi_isa_irq_penalty[link->irq.active] +=
-			    PIRQ_PENALTY_PCI_POSSIBLE;
-		}
-	}
-
-	return 0;
-}
-
 static int acpi_irq_balance = -1;	/* 0: static, 1: balance */
 
 static int acpi_pci_link_allocate(struct acpi_pci_link *link)

include/acpi/acpi_drivers.h

@@ -78,7 +78,6 @@
 
 /* ACPI PCI Interrupt Link (pci_link.c) */
 
-int acpi_irq_penalty_init(void);
 int acpi_pci_link_allocate_irq(acpi_handle handle, int index, int *triggering,
 			       int *polarity, char **name);
 int acpi_pci_link_free_irq(acpi_handle handle);