This is a note to let you know that I've just added the patch titled
flow_offload: return EOPNOTSUPP for the unsupported mpls action type
to the 5.4-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:
flow_offload-return-eopnotsupp-for-the-unsupported-m.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 5717b1edd0f865b6c6b08c4be968b1c393e3026b
Author: Baowen Zheng <baowen.zheng@xxxxxxxxxxxx>
Date: Mon Dec 13 15:46:04 2021 +0100
flow_offload: return EOPNOTSUPP for the unsupported mpls action type
[ Upstream commit 166b6a46b78bf8b9559a6620c3032f9fe492e082 ]
We need to return EOPNOTSUPP for the unsupported mpls action type when
setup the flow action.
In the original implement, we will return 0 for the unsupported mpls
action type, actually we do not setup it and the following actions
to the flow action entry.
Fixes: 9838b20a7fb2 ("net: sched: take rtnl lock in tc_setup_flow_action()")
Signed-off-by: Baowen Zheng <baowen.zheng@xxxxxxxxxxxx>
Signed-off-by: Simon Horman <simon.horman@xxxxxxxxxxxx>
Acked-by: Jamal Hadi Salim <jhs@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 61aa63cc170b4..a4c61205462ac 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -3562,6 +3562,7 @@ int tc_setup_flow_action(struct flow_action *flow_action,
entry->mpls_mangle.ttl = tcf_mpls_ttl(act);
break;
default:
+ err = -EOPNOTSUPP;
goto err_out_locked;
}
} else if (is_tcf_skbedit_ptype(act)) {
