[MIPS] Complete fixes after removal of pt_regs argument to int handlers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
index f859db0..c38e1f3 100644
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -76,7 +76,7 @@
 	__raw_writeq((((u64)action) << 48), mailbox_set_regs[cpu]);
 }
 
-void sb1250_mailbox_interrupt(struct pt_regs *regs)
+void sb1250_mailbox_interrupt(void)
 {
 	int cpu = smp_processor_id();
 	unsigned int action;