[MIPS] A few more pt_regs fixups.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c
index fd0932b..db80844 100644
--- a/arch/mips/sgi-ip32/ip32-reset.c
+++ b/arch/mips/sgi-ip32/ip32-reset.c
@@ -135,7 +135,7 @@
 	add_timer(&power_timer);
 }
 
-static irqreturn_t ip32_rtc_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ip32_rtc_int(int irq, void *dev_id)
 {
 	volatile unsigned char reg_c;