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From: Jakub Kicinski <jakub.kicinski@netronome.com>
Date: Thu, 25 Jan 2018 14:00:50 -0800
Subject: i40e: use tc_cls_can_offload_and_chain0()
Patch-mainline: v4.16-rc1
Git-commit: a0d8637f0f59c4028b73ef1f319eca4f8b5beb53
References: bsc#1111981 FATE#326312

Make use of tc_cls_can_offload_and_chain0() to set extack msg in case
ethtool tc offload flag is not set or chain unsupported.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c |    8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7437,11 +7437,6 @@ static int i40e_setup_tc_cls_flower(stru
 {
 	struct i40e_vsi *vsi = np->vsi;
 
-	if (!tc_can_offload(vsi->netdev))
-		return -EOPNOTSUPP;
-	if (cls_flower->common.chain_index)
-		return -EOPNOTSUPP;
-
 	switch (cls_flower->command) {
 	case TC_CLSFLOWER_REPLACE:
 		return i40e_configure_clsflower(vsi, cls_flower);
@@ -7459,6 +7454,9 @@ static int i40e_setup_tc_block_cb(enum t
 {
 	struct i40e_netdev_priv *np = cb_priv;
 
+	if (!tc_cls_can_offload_and_chain0(np->vsi->netdev, type_data))
+		return -EOPNOTSUPP;
+
 	switch (type) {
 	case TC_SETUP_CLSFLOWER:
 		return i40e_setup_tc_cls_flower(np, type_data);