From: Jesper Dangaard Brouer brouer@redhat.com
[ Upstream commit b89c1e6bdc73f5775e118eb2ab778e75b262b30c ]
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: Sasha Levin sashal@kernel.org --- 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 d97c320a2dc0..569e06d2bab2 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -2018,7 +2018,7 @@ 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); @@ -2030,7 +2030,7 @@ 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) {