diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c
index 46d1efc..687ec4a 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -1583,7 +1583,7 @@
 	dui = (struct deferred_unmap_info *)skb->head;
 	p = dui->addr;
 
-	if (skb->tail - skb->transport_header)
+	if (skb_tail_pointer(skb) - skb_transport_header(skb))
 		pci_unmap_single(dui->pdev, *p++, skb_tail_pointer(skb) -
 				 skb_transport_header(skb), PCI_DMA_TODEVICE);
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index 2bfbb20..ac311f5 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -1294,7 +1294,7 @@
 
 	flits = skb_transport_offset(skb) / 8U;   /* headers */
 	cnt = skb_shinfo(skb)->nr_frags;
-	if (skb->tail != skb->transport_header)
+	if (skb_tail_pointer(skb) != skb_transport_header(skb))
 		cnt++;
 	return flits + sgl_len(cnt);
 }