diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index edc9a6ac5169328b3690672b47a699df8dc2d588..9affd7c198bd2350cadf5d96be70e00369e0976c 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -4931,11 +4931,15 @@ static int igb_tso(struct igb_ring *tx_ring,
 
 	/* initialize outer IP header fields */
 	if (ip.v4->version == 4) {
+		unsigned char *csum_start = skb_checksum_start(skb);
+		unsigned char *trans_start = ip.hdr + (ip.v4->ihl * 4);
+
 		/* IP header will have to cancel out any data that
 		 * is not a part of the outer IP header
 		 */
-		ip.v4->check = csum_fold(csum_add(lco_csum(skb),
-						  csum_unfold(l4.tcp->check)));
+		ip.v4->check = csum_fold(csum_partial(trans_start,
+						      csum_start - trans_start,
+						      0));
 		type_tucmd |= E1000_ADVTXD_TUCMD_IPV4;
 
 		ip.v4->tot_len = 0;
diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 12bb877df86091f92716f1225e17a6b66bc1a4b4..7dff7f6239cd770766607102ae532c2ed9129ff2 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -1965,11 +1965,15 @@ static int igbvf_tso(struct igbvf_ring *tx_ring,
 
 	/* initialize outer IP header fields */
 	if (ip.v4->version == 4) {
+		unsigned char *csum_start = skb_checksum_start(skb);
+		unsigned char *trans_start = ip.hdr + (ip.v4->ihl * 4);
+
 		/* IP header will have to cancel out any data that
 		 * is not a part of the outer IP header
 		 */
-		ip.v4->check = csum_fold(csum_add(lco_csum(skb),
-						  csum_unfold(l4.tcp->check)));
+		ip.v4->check = csum_fold(csum_partial(trans_start,
+						      csum_start - trans_start,
+						      0));
 		type_tucmd |= E1000_ADVTXD_TUCMD_IPV4;
 
 		ip.v4->tot_len = 0;