From: Jakub Kicinski <jakub.kicinski@netronome.com>
Date: Thu, 25 Jan 2018 14:00:46 -0800
Subject: cxgb4: use tc_cls_can_offload_and_chain0()
Patch-mainline: v4.16-rc1
Git-commit: 2a84bbafc0310cba96dcac172cd87c4f46c5b1e3
References: bsc#1104279 FATE#325938

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>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c |    8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2928,9 +2928,6 @@ static int cxgb_set_tx_maxrate(struct ne
 static int cxgb_setup_tc_flower(struct net_device *dev,
 				struct tc_cls_flower_offload *cls_flower)
 {
-	if (cls_flower->common.chain_index)
-		return -EOPNOTSUPP;
-
 	switch (cls_flower->command) {
 	case TC_CLSFLOWER_REPLACE:
 		return cxgb4_tc_flower_replace(dev, cls_flower);
@@ -2946,9 +2943,6 @@ static int cxgb_setup_tc_flower(struct n
 static int cxgb_setup_tc_cls_u32(struct net_device *dev,
 				 struct tc_cls_u32_offload *cls_u32)
 {
-	if (cls_u32->common.chain_index)
-		return -EOPNOTSUPP;
-
 	switch (cls_u32->command) {
 	case TC_CLSU32_NEW_KNODE:
 	case TC_CLSU32_REPLACE_KNODE:
@@ -2974,7 +2968,7 @@ static int cxgb_setup_tc_block_cb(enum t
 		return -EINVAL;
 	}
 
-	if (!tc_can_offload(dev))
+	if (!tc_cls_can_offload_and_chain0(dev, type_data))
 		return -EOPNOTSUPP;
 
 	switch (type) {