This is a note to let you know that I've just added the patch titled
net: sched: fix static key imbalance in case of ingress/clsact_init error
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-sched-fix-static-key-imbalance-in-case-of-ingress-clsact_init-error.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Sun Dec 31 11:12:48 CET 2017
From: Jiri Pirko <jiri@xxxxxxxxxxxx>
Date: Fri, 15 Dec 2017 12:40:13 +0100
Subject: net: sched: fix static key imbalance in case of ingress/clsact_init error
From: Jiri Pirko <jiri@xxxxxxxxxxxx>
[ Upstream commit b59e6979a86384e68b0ab6ffeab11f0034fba82d ]
Move static key increments to the beginning of the init function
so they pair 1:1 with decrements in ingress/clsact_destroy,
which is called in case ingress/clsact_init fails.
Fixes: 6529eaba33f0 ("net: sched: introduce tcf block infractructure")
Signed-off-by: Jiri Pirko <jiri@xxxxxxxxxxxx>
Acked-by: Cong Wang <xiyou.wangcong@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/sched/sch_ingress.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
--- a/net/sched/sch_ingress.c
+++ b/net/sched/sch_ingress.c
@@ -59,11 +59,12 @@ static int ingress_init(struct Qdisc *sc
struct net_device *dev = qdisc_dev(sch);
int err;
+ net_inc_ingress_queue();
+
err = tcf_block_get(&q->block, &dev->ingress_cl_list);
if (err)
return err;
- net_inc_ingress_queue();
sch->flags |= TCQ_F_CPUSTATS;
return 0;
@@ -153,6 +154,9 @@ static int clsact_init(struct Qdisc *sch
struct net_device *dev = qdisc_dev(sch);
int err;
+ net_inc_ingress_queue();
+ net_inc_egress_queue();
+
err = tcf_block_get(&q->ingress_block, &dev->ingress_cl_list);
if (err)
return err;
@@ -161,9 +165,6 @@ static int clsact_init(struct Qdisc *sch
if (err)
return err;
- net_inc_ingress_queue();
- net_inc_egress_queue();
-
sch->flags |= TCQ_F_CPUSTATS;
return 0;
Patches currently in stable-queue which might be from jiri@xxxxxxxxxxxx are
queue-4.14/net-sched-fix-static-key-imbalance-in-case-of-ingress-clsact_init-error.patch
queue-4.14/mlxsw-spectrum-disable-mac-learning-for-ovs-port.patch