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net/sched: act_vlan: Add extack message for offload failure 

For better error reporting to user space, add an extack message when
vlan 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 the current
set of modes.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2022-04-07 10:35:30 +03:00 committed by David S. Miller
parent ee367d44b9
commit f8fab31694
1 changed files with 1 additions and 0 deletions
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1
net/sched/act_vlan.c
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@ -399,6 +399,7 @@ static int tcf_vlan_offload_act_setup(struct tc_action *act, void *entry_data,
tcf_vlan_push_eth(entry->vlan_push_eth.src, entry->vlan_push_eth.dst, act);
break;
default:
NL_SET_ERR_MSG_MOD(extack, "Unsupported vlan action mode offload");
return -EOPNOTSUPP;
}
*index_inc = 1;