pirq_enable_irq    29 arch/x86/pci/irq.c static int pirq_enable_irq(struct pci_dev *dev);
pirq_enable_irq    57 arch/x86/pci/irq.c int (*pcibios_enable_irq)(struct pci_dev *dev) = pirq_enable_irq;
pirq_enable_irq  1169 arch/x86/pci/irq.c 			pirq_enable_irq(dev);