[PATCH 4.4 078/143] enic: fix checksum validation for IPv6

From: Greg Kroah-Hartman
Date: Mon Feb 18 2019 - 09:23:48 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Govindarajulu Varadarajan <gvaradar@xxxxxxxxx>

[ Upstream commit 7596175e99b3d4bce28022193efd954c201a782a ]

In case of IPv6 pkts, ipv4_csum_ok is 0. Because of this, driver does
not set skb->ip_summed. So IPv6 rx checksum is not offloaded.

Signed-off-by: Govindarajulu Varadarajan <gvaradar@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/cisco/enic/enic_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1180,7 +1180,7 @@ static void enic_rq_indicate_buf(struct
* CHECSUM_UNNECESSARY.
*/
if ((netdev->features & NETIF_F_RXCSUM) && tcp_udp_csum_ok &&
- ipv4_csum_ok)
+ (ipv4_csum_ok || ipv6))
skb->ip_summed = CHECKSUM_UNNECESSARY;

if (vlan_stripped)