[dpdk-stable] [PATCH] net/mvpp2: fix declare unsupported vlan offload features

[<danat@marvell.com>]

From: Meir Levi <mlevi4@marvell.com>

vlan_strip and vlan_extend features need to return "unsupported"
error value.

Fixes: ff0b8b10dc4 ("net/mvpp2: support VLAN offload")
Cc: stable@dpdk.org

Signed-off-by: Meir Levi <mlevi4@marvell.com>
Reviewed-by: Liron Himi <lironh@marvell.com>
---
 drivers/net/mvpp2/mrvl_ethdev.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mvpp2/mrvl_ethdev.c b/drivers/net/mvpp2/mrvl_ethdev.c
index 1802695a0e..078aefbb8d 100644
--- a/drivers/net/mvpp2/mrvl_ethdev.c
+++ b/drivers/net/mvpp2/mrvl_ethdev.c
@@ -1873,8 +1873,10 @@ static int mrvl_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 	uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
 	int ret;
 
-	if (mask & ETH_VLAN_STRIP_MASK)
+	if (mask & ETH_VLAN_STRIP_MASK) {
 		MRVL_LOG(ERR, "VLAN stripping is not supported\n");
+		return -ENOTSUP;
+	}
 
 	if (mask & ETH_VLAN_FILTER_MASK) {
 		if (rx_offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
@@ -1886,8 +1888,10 @@ static int mrvl_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 			return ret;
 	}
 
-	if (mask & ETH_VLAN_EXTEND_MASK)
+	if (mask & ETH_VLAN_EXTEND_MASK) {
 		MRVL_LOG(ERR, "Extend VLAN not supported\n");
+		return -ENOTSUP;
+	}
 
 	return 0;
 }
-- 
2.17.1