X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fsched%2Fsch_netem.c;h=98402f0efa47727677b8d57acfe2ecd7cb9441b2;hb=828aac2ee239dca9c1856c4856a57912e6a487c4;hp=3781e55046d076cc49e5eb80e89bca30ec3eca53;hpb=1543966a079fc7065849ae43ca4dd767c188ad55;p=linux-2.6-omap-h63xx.git

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 3781e55046d..98402f0efa4 100644
--- 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;