diff --git a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
index 11090ab4bf59a38f2b78074fd8b7a9e10467656d..cf8287487157fb6ad3029c0f395e6b05ecc800dd 100644
--- a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
+++ b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
@@ -105,8 +105,10 @@ cpld_pic_get_irq(int offset, u8 ignore, u8 __iomem *statusp,
 }
 
 static void
-cpld_pic_cascade(unsigned int irq, struct irq_desc *desc)
+cpld_pic_cascade(unsigned int __irq, struct irq_desc *desc)
 {
+	unsigned int irq;
+
 	irq = cpld_pic_get_irq(0, PCI_IGNORE, &cpld_regs->pci_status,
 		&cpld_regs->pci_mask);
 	if (irq != NO_IRQ) {