From: Jesper Dangaard Brouer <brouer@redhat.com>
Date: Thu, 23 Apr 2020 16:57:50 +0200
Subject: dpaa2-eth: fix return codes used in ndo_setup_tc
Git-commit: b89c1e6bdc73f5775e118eb2ab778e75b262b30c
Patch-mainline: v5.8-rc1
References: jsc#SLE-12251
Drivers ndo_setup_tc call should return -EOPNOTSUPP, when it cannot
support the qdisc type. Other return values will result in failing the
qdisc setup. This lead to qdisc noop getting assigned, which will
drop all TX packets on the interface.
Fixes: ab1e6de2bd49 ("dpaa2-eth: Add mqprio support")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index 9d4061bba0b8..d271c016229d 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -2021,7 +2021,7 @@ static int dpaa2_eth_setup_tc(struct net_device *net_dev,
int i;
if (type != TC_SETUP_QDISC_MQPRIO)
- return -EINVAL;
+ return -EOPNOTSUPP;
mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
num_queues = dpaa2_eth_queue_count(priv);
@@ -2033,7 +2033,7 @@ static int dpaa2_eth_setup_tc(struct net_device *net_dev,
if (num_tc > dpaa2_eth_tc_count(priv)) {
netdev_err(net_dev, "Max %d traffic classes supported\n",
dpaa2_eth_tc_count(priv));
- return -EINVAL;
+ return -EOPNOTSUPP;
}
if (!num_tc) {
--
2.26.2