diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c
index 6596cd0742b9..f972fef87c98 100644
--- a/drivers/net/wan/sbni.c
+++ b/drivers/net/wan/sbni.c
@@ -856,7 +856,7 @@ prepare_to_send( struct sk_buff  *skb,  struct net_device  *dev )
 		len = SBNI_MIN_LEN;
 
 	nl->tx_buf_p	= skb;
-	nl->tx_frameno	= (len + nl->maxframe - 1) / nl->maxframe;
+	nl->tx_frameno	= DIV_ROUND_UP(len, nl->maxframe);
 	nl->framelen	= len < nl->maxframe  ?  len  :  nl->maxframe;
 
 	outb( inb( dev->base_addr + CSR0 ) | TR_REQ,  dev->base_addr + CSR0 );