SCHED: netem: Correct documentation comment in code.

[linux-2.6-omap-h63xx.git] / net / sched / sch_netem.c

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 3781e55046d076cc49e5eb80e89bca30ec3eca53..98402f0efa47727677b8d57acfe2ecd7cb9441b2 100644 (file)
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -46,9 +46,6 @@
         layering other disciplines.  It does not need to do bandwidth
         control either since that can be handled by using token
         bucket or other rate control.
-
-        The simulator is limited by the Linux timer resolution
-        and will create packet bursts on the HZ boundary (1ms).
 */
 
 struct netem_sched_data {
@@ -388,6 +385,20 @@ static const struct nla_policy netem_policy[TCA_NETEM_MAX + 1] = {
        [TCA_NETEM_CORRUPT]     = { .len = sizeof(struct tc_netem_corrupt) },
 };
 
+static int parse_attr(struct nlattr *tb[], int maxtype, struct nlattr *nla,
+                     const struct nla_policy *policy, int len)
+{
+       int nested_len = nla_len(nla) - NLA_ALIGN(len);
+
+       if (nested_len < 0)
+               return -EINVAL;
+       if (nested_len >= nla_attr_size(0))
+               return nla_parse(tb, maxtype, nla_data(nla) + NLA_ALIGN(len),
+                                nested_len, policy);
+       memset(tb, 0, sizeof(struct nlattr *) * (maxtype + 1));
+       return 0;
+}
+
 /* Parse netlink message to set options */
 static int netem_change(struct Qdisc *sch, struct nlattr *opt)
 {
@@ -399,8 +410,8 @@ static int netem_change(struct Qdisc *sch, struct nlattr *opt)
        if (opt == NULL)
                return -EINVAL;
 
-       ret = nla_parse_nested_compat(tb, TCA_NETEM_MAX, opt, netem_policy,
-                                     qopt, sizeof(*qopt));
+       qopt = nla_data(opt);
+       ret = parse_attr(tb, TCA_NETEM_MAX, opt, netem_policy, sizeof(*qopt));
        if (ret < 0)
                return ret;