[NET]: all net/ cleanup with ARRAY_SIZE

Signed-off-by: Denis Cheng <crquan@gmail.com>

net/atm/proc.c

@@ -176,7 +176,7 @@ static void pvc_info(struct seq_file *seq, struct atm_vcc *vcc)
 
 	seq_printf(seq, "%3d %3d %5d %-3s %7d %-5s %7d %-6s",
 	    vcc->dev->number,vcc->vpi,vcc->vci,
-	    vcc->qos.aal >= sizeof(aal_name)/sizeof(aal_name[0]) ? "err" :
+	    vcc->qos.aal >= ARRAY_SIZE(aal_name) ? "err" :
 	    aal_name[vcc->qos.aal],vcc->qos.rxtp.min_pcr,
 	    class_name[vcc->qos.rxtp.traffic_class],vcc->qos.txtp.min_pcr,
 	    class_name[vcc->qos.txtp.traffic_class]);

net/decnet/dn_dev.c

@@ -150,7 +150,7 @@ static struct dn_dev_parms dn_dev_list[] =  {
 }
 };
 
-#define DN_DEV_LIST_SIZE (sizeof(dn_dev_list)/sizeof(struct dn_dev_parms))
+#define DN_DEV_LIST_SIZE ARRAY_SIZE(dn_dev_list)
 
 #define DN_DEV_PARMS_OFFSET(x) ((int) ((char *) &((struct dn_dev_parms *)0)->x))