From: Feras Daoud <ferasda@mellanox.com>
Subject: net/mlx5e: IPoIB, Fix RX checksum statistics update
Patch-mainline: v5.1-rc1
Git-commit: 3d6f3cdf9bfe92c430674308db0f1c8655f2c11d
References: git-fixes

Update the RX checksum only if the feature is enabled.

Fixes: 9d6bd752c63c ("net/mlx5e: IPoIB, RX handler")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Denis Kirjanov <dkirjanov@suse.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -1265,8 +1265,14 @@ static inline void mlx5i_complete_rx_cqe
 
 	skb->protocol = *((__be16 *)(skb->data));
 
-	skb->ip_summed = CHECKSUM_COMPLETE;
-	skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
+	if (netdev->features & NETIF_F_RXCSUM) {
+		skb->ip_summed = CHECKSUM_COMPLETE;
+		skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
+		stats->csum_complete++;
+	} else {
+		skb->ip_summed = CHECKSUM_NONE;
+		stats->csum_none++;
+	}
 
 	if (unlikely(mlx5e_rx_hw_stamp(tstamp)))
 		skb_hwtstamps(skb)->hwtstamp =
@@ -1285,7 +1291,6 @@ static inline void mlx5i_complete_rx_cqe
 
 	skb->dev = netdev;
 
-	stats->csum_complete++;
 	stats->packets++;
 	stats->bytes += cqe_bcnt;
 }