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net: sched: act: mirred: add extack support 

This patch adds extack support for TC mirred action.

Cc: David Ahern <dsahern@gmail.com>
Signed-off-by: Alexander Aring <aring@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Aring 2018-02-15 10:55:00 -05:00 committed by David S. Miller
parent b36201455a
commit 1d4760c75d
1 changed files with 11 additions and 4 deletions
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15
net/sched/act_mirred.c
View File

@ -80,13 +80,17 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
bool exists = false;
int ret;
if (!nla)
if (!nla) {
NL_SET_ERR_MSG_MOD(extack, "Mirred requires attributes to be passed");
return -EINVAL;
ret = nla_parse_nested(tb, TCA_MIRRED_MAX, nla, mirred_policy, NULL);
}
ret = nla_parse_nested(tb, TCA_MIRRED_MAX, nla, mirred_policy, extack);
if (ret < 0)
return ret;
if (!tb[TCA_MIRRED_PARMS])
if (!tb[TCA_MIRRED_PARMS]) {
NL_SET_ERR_MSG_MOD(extack, "Missing required mirred parameters");
return -EINVAL;
}
parm = nla_data(tb[TCA_MIRRED_PARMS]);
exists = tcf_idr_check(tn, parm->index, a, bind);
@ -102,6 +106,7 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
default:
if (exists)
tcf_idr_release(*a, bind);
NL_SET_ERR_MSG_MOD(extack, "Unknown mirred option");
return -EINVAL;
}
if (parm->ifindex) {
@ -117,8 +122,10 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
}
if (!exists) {
if (!dev)
if (!dev) {
NL_SET_ERR_MSG_MOD(extack, "Specified device does not exist");
return -EINVAL;
}
ret = tcf_idr_create(tn, parm->index, est, a,
&act_mirred_ops, bind, true);
if (ret)