[PPC] minor irq handler cleanups

- whitespace cleanups

- remove pointless prototype (uses always follow func implementation)

- 'irq' argument is used here purely as a local variable.  rename
  argument to 'dummy' and define 'irq' as local to make this plain.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/ppc/8xx_io/fec.c b/arch/ppc/8xx_io/fec.c
index 11b0aa6..d7b7ba9 100644
--- a/arch/ppc/8xx_io/fec.c
+++ b/arch/ppc/8xx_io/fec.c
@@ -199,7 +199,6 @@
 #ifdef	CONFIG_USE_MDIO
 static void fec_enet_mii(struct net_device *dev);
 #endif	/* CONFIG_USE_MDIO */
-static irqreturn_t fec_enet_interrupt(int irq, void * dev_id);
 #ifdef CONFIG_FEC_PACKETHOOK
 static void  fec_enet_tx(struct net_device *dev, __u32 regval);
 static void  fec_enet_rx(struct net_device *dev, __u32 regval);
@@ -472,7 +471,7 @@
  * This is called from the MPC core interrupt.
  */
 static	irqreturn_t
-fec_enet_interrupt(int irq, void * dev_id)
+fec_enet_interrupt(int irq, void *dev_id)
 {
 	struct	net_device *dev = dev_id;
 	volatile fec_t	*fecp;
diff --git a/arch/ppc/platforms/sbc82xx.c b/arch/ppc/platforms/sbc82xx.c
index cc0935c..0df6aac 100644
--- a/arch/ppc/platforms/sbc82xx.c
+++ b/arch/ppc/platforms/sbc82xx.c
@@ -121,8 +121,10 @@
 	.end = sbc82xx_i8259_end_irq,
 };
 
-static irqreturn_t sbc82xx_i8259_demux(int irq, void *dev_id)
+static irqreturn_t sbc82xx_i8259_demux(int dummy, void *dev_id)
 {
+	int irq;
+
 	spin_lock(&sbc82xx_i8259_lock);
 
 	sbc82xx_i8259_map[0] = 0x0c;	/* OCW3: Read IR register on RD# pulse */