[NET_SCHED]: Use nla_policy for attribute validation in actions

[powerpc.git] / net / sched / act_mirred.c

diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 6cb5e30..1aff005 100644 (file)
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -54,6 +54,10 @@ static inline int tcf_mirred_release(struct tcf_mirred *m, int bind)
        return 0;
 }
 
+static const struct nla_policy mirred_policy[TCA_MIRRED_MAX + 1] = {
+       [TCA_MIRRED_PARMS]      = { .len = sizeof(struct tc_mirred) },
+};
+
 static int tcf_mirred_init(struct nlattr *nla, struct nlattr *est,
                           struct tc_action *a, int ovr, int bind)
 {
@@ -68,12 +72,11 @@ static int tcf_mirred_init(struct nlattr *nla, struct nlattr *est,
        if (nla == NULL)
                return -EINVAL;
 
-       err = nla_parse_nested(tb, TCA_MIRRED_MAX, nla, NULL);
+       err = nla_parse_nested(tb, TCA_MIRRED_MAX, nla, mirred_policy);
        if (err < 0)
                return err;
 
-       if (tb[TCA_MIRRED_PARMS] == NULL ||
-           nla_len(tb[TCA_MIRRED_PARMS]) < sizeof(*parm))
+       if (tb[TCA_MIRRED_PARMS] == NULL)
                return -EINVAL;
        parm = nla_data(tb[TCA_MIRRED_PARMS]);