| From 3c0b1d78552a7377151f26f72af08fd69414892d Mon Sep 17 00:00:00 2001 |
| From: Vinicius Costa Gomes <vinicius.gomes@intel.com> |
| Date: Thu, 6 Feb 2020 13:46:09 -0800 |
| Subject: [PATCH] taprio: Use taprio_reset_tc() to reset Traffic Classes |
| configuration |
| |
| commit 7c16680a08ee1e444a67d232c679ccf5b30fad16 upstream. |
| |
| When destroying the current taprio instance, which can happen when the |
| creation of one fails, we should reset the traffic class configuration |
| back to the default state. |
| |
| netdev_reset_tc() is a better way because in addition to setting the |
| number of traffic classes to zero, it also resets the priority to |
| traffic classes mapping to the default value. |
| |
| Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") |
| Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c |
| index 49c5379696d8..2ef34b7b4874 100644 |
| --- a/net/sched/sch_taprio.c |
| +++ b/net/sched/sch_taprio.c |
| @@ -901,7 +901,7 @@ static void taprio_destroy(struct Qdisc *sch) |
| } |
| q->qdiscs = NULL; |
| |
| - netdev_set_num_tc(dev, 0); |
| + netdev_reset_tc(dev); |
| |
| if (q->oper_sched) |
| call_rcu(&q->oper_sched->rcu, taprio_free_sched_cb); |
| -- |
| 2.7.4 |
| |
