netdev - [PATCH net-next 07/14] net/sched: act_pedit: Add extack message for offload failure

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Message-Id: <20220407073533.2422896-8-idosch@nvidia.com>
Date:   Thu,  7 Apr 2022 10:35:26 +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 07/14] net/sched: act_pedit: Add extack message for offload failure

For better error reporting to user space, add an extack message when
pedit 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/add
commands.

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

diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index dc12d502c4fe..e01ef7f109f4 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -504,6 +504,7 @@ static int tcf_pedit_offload_act_setup(struct tc_action *act, void *entry_data,
 				entry->id = FLOW_ACTION_ADD;
 				break;
 			default:
+				NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
 				return -EOPNOTSUPP;
 			}
 			entry->mangle.htype = tcf_pedit_htype(act, k);
-- 
2.33.1