2.6.25-stable review patch. If anyone has any objections, please let us know. ------------------ From: Thomas Graf [ No upstream commit, this is fixing code no longer in 2.6.27 ] nla_parse_nested_compat() was used to parse two different message formats in the netem and prio qdisc, when it was "fixed" to work with netem, it broke the multi queue support in the prio qdisc. Since the prio qdisc code in question is already removed in the development tree, this patch only fixes the regression in the stable tree. Based on original patch from Alexander H Duyck Signed-off-by: Thomas Graf Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- net/sched/sch_prio.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) --- a/net/sched/sch_prio.c +++ b/net/sched/sch_prio.c @@ -228,14 +228,20 @@ static int prio_tune(struct Qdisc *sch, { struct prio_sched_data *q = qdisc_priv(sch); struct tc_prio_qopt *qopt; - struct nlattr *tb[TCA_PRIO_MAX + 1]; + struct nlattr *tb[TCA_PRIO_MAX + 1] = {0}; int err; int i; - err = nla_parse_nested_compat(tb, TCA_PRIO_MAX, opt, NULL, qopt, - sizeof(*qopt)); - if (err < 0) - return err; + qopt = nla_data(opt); + if (nla_len(opt) < sizeof(*qopt)) + return -1; + + if (nla_len(opt) >= sizeof(*qopt) + sizeof(struct nlattr)) { + err = nla_parse_nested(tb, TCA_PRIO_MAX, + (struct nlattr *) (qopt + 1), NULL); + if (err < 0) + return err; + } q->bands = qopt->bands; /* If we're multiqueue, make sure the number of incoming bands -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/