netdev - [PATCH net-next 10/14] net/sched: act_tunnel_key: Add extack message for offload failure

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Message-Id: <20220407073533.2422896-11-idosch@nvidia.com>
Date:   Thu,  7 Apr 2022 10:35:29 +0300
From:   Ido Schimmel <idosch@...dia.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        jhs@...atatu.com, xiyou.wangcong@...il.com, jiri@...nulli.us,
        petrm@...dia.com, jianbol@...dia.com, roid@...dia.com,
        vladbu@...dia.com, olteanv@...il.com, simon.horman@...igine.com,
        baowen.zheng@...igine.com, marcelo.leitner@...il.com,
        Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 10/14] net/sched: act_tunnel_key: Add extack message for offload failure

For better error reporting to user space, add an extack message when
tunnel_key action offload fails.

Currently, the failure cannot be triggered, but add a message in case
the action is extended in the future to support more than set/release
modes.

Signed-off-by: Ido Schimmel <idosch@...dia.com>
Reviewed-by: Petr Machata <petrm@...dia.com>
---
 net/sched/act_tunnel_key.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index 3c6f40478c81..856dc23cef8c 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -824,6 +824,7 @@ static int tcf_tunnel_key_offload_act_setup(struct tc_action *act,
 		} else if (is_tcf_tunnel_release(act)) {
 			entry->id = FLOW_ACTION_TUNNEL_DECAP;
 		} else {
+			NL_SET_ERR_MSG_MOD(extack, "Unsupported tunnel key mode offload");
 			return -EOPNOTSUPP;
 		}
 		*index_inc = 1;
-- 
2.33.1