[PATCH net-next 5/6] net: mvneta: Verify hardware checksum only when offload checksum feature is set

[Gregory CLEMENT]

From: Yelena Krivosheev <yelena@xxxxxxxxxxx>

If the checksum offload feature is not set, then there is no point to
check the status of the hardware.

[gregory: extract from a larger patch]
Signed-off-by: Yelena Krivosheev <yelena@xxxxxxxxxxx>
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxx>
---
 drivers/net/ethernet/marvell/mvneta.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 12739fb60732..8fc4be238083 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1716,11 +1716,13 @@ static void mvneta_rx_error(struct mvneta_port *pp,
 static void mvneta_rx_csum(struct mvneta_port *pp, u32 status,
 			   struct sk_buff *skb)
 {
-	if ((status & MVNETA_RXD_L3_IP4) &&
-	    (status & MVNETA_RXD_L4_CSUM_OK)) {
-		skb->csum = 0;
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-		return;
+	if (pp->dev->features & NETIF_F_RXCSUM) {
+		if ((status & MVNETA_RXD_L3_IP4) &&
+		    (status & MVNETA_RXD_L4_CSUM_OK)) {
+			skb->csum = 0;
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+			return;
+		}
 	}
 
 	skb->ip_summed = CHECKSUM_NONE;
-- 
2.17.1