/* macros and functions exported to the protocol modules */
-#define delay_p (pi->delay?udelay(pi->delay):0)
+#define delay_p (pi->delay?udelay(pi->delay):(void)0)
#define out_p(offs,byte) outb(byte,pi->port+offs); delay_p;
#define in_p(offs) (delay_p,inb(pi->port+offs))