[S390] irq change build fixes.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/include/asm-s390/hardirq.h b/include/asm-s390/hardirq.h
index e84b7ef..c2f6a87 100644
--- a/include/asm-s390/hardirq.h
+++ b/include/asm-s390/hardirq.h
@@ -32,6 +32,6 @@
 
 #define HARDIRQ_BITS	8
 
-extern void account_ticks(struct pt_regs *);
+extern void account_ticks(void);
 
 #endif /* __ASM_HARDIRQ_H */