[POWERPC] ARCH=ppc pt_regs fixes

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/ppc/syslib/open_pic2.c b/arch/ppc/syslib/open_pic2.c
index e1ff971..d585207 100644
--- a/arch/ppc/syslib/open_pic2.c
+++ b/arch/ppc/syslib/open_pic2.c
@@ -529,7 +529,7 @@
 }
 
 int
-openpic2_get_irq(struct pt_regs *regs)
+openpic2_get_irq(void)
 {
 	int irq = openpic2_irq();