IB/ipath: Simplify code using ARRAY_SIZE() macro

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/ipath/ipath_iba7220.c

@@ -2228,8 +2228,8 @@ static void ipath_autoneg_send(struct ipath_devdata *dd, int which)
 		0xffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
 		0x40000001, 0x1388, 0x15e, /* rest 0's */
 		};
-	dcnt = sizeof(madpayload_start)/sizeof(madpayload_start[0]);
-	hcnt = sizeof(hdr)/sizeof(hdr[0]);
+	dcnt = ARRAY_SIZE(madpayload_start);
+	hcnt = ARRAY_SIZE(hdr);
 	if (!swapped) {
 		/* for maintainability, do it at runtime */
 		for (i = 0; i < hcnt; i++) {