tree 975c7e0972b5a4510ffb84bd52160ddefa20811b
parent b09fe70ef520e011ba4a64f4b93f948a8f14717b
author Yonglong Liu <liuyonglong@huawei.com> 1583997063 +0800
committer David S. Miller <davem@davemloft.net> 1584038306 -0700

net: hns3: fix "tc qdisc del" failed issue

The HNS3 driver supports to configure TC numbers and TC to priority
map via "tc" tool. But when delete the rule, will fail, because
the HNS3 driver needs at least one TC, but the "tc" tool sets TC
number to zero when delete.

This patch makes sure that the TC number is at least one.

Fixes: 30d240dfa2e8 ("net: hns3: Add mqprio hardware offload support in hns3 driver")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>