pkt_sched: sch_hfsc: sch_htb: Add non-work-conserving warning handler.

Patrick McHardy <kaber@trash.net> suggested:
> How about making this flag and the warning message (in a out-of-line
> function) globally available? Other qdiscs (f.i. HFSC) can't deal with
> inner non-work-conserving qdiscs as well.

This patch uses qdisc->flags field of "suspected" child qdisc.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index f8c47429044a..3d78a4d22460 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -42,9 +42,10 @@ struct Qdisc
         int                     (*enqueue)(struct sk_buff *skb, struct Qdisc *dev);
         struct sk_buff *        (*dequeue)(struct Qdisc *dev);
         unsigned                flags;
-#define TCQ_F_BUILTIN   1
-#define TCQ_F_THROTTLED 2
-#define TCQ_F_INGRESS   4
+#define TCQ_F_BUILTIN           1
+#define TCQ_F_THROTTLED         2
+#define TCQ_F_INGRESS           4
+#define TCQ_F_WARN_NONWC        (1 << 16)
         int                     padded;
         struct Qdisc_ops        *ops;
         struct qdisc_size_table *stab;