net_sched: Add accessor function for packet length for qdiscs

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 6 deletions

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index f396dff335a3..8229520e088a 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -306,6 +306,11 @@ static inline bool qdisc_tx_is_noop(const struct net_device *dev)
         return true;
 }
 
+static inline unsigned int qdisc_pkt_len(struct sk_buff *skb)
+{
+        return skb->len;
+}
+
 static inline int qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
         return sch->enqueue(skb, sch);
@@ -320,8 +325,8 @@ static inline int __qdisc_enqueue_tail(struct sk_buff *skb, struct Qdisc *sch,
                                        struct sk_buff_head *list)
 {
         __skb_queue_tail(list, skb);
-        sch->qstats.backlog += skb->len;
-        sch->bstats.bytes += skb->len;
+        sch->qstats.backlog += qdisc_pkt_len(skb);
+        sch->bstats.bytes += qdisc_pkt_len(skb);
         sch->bstats.packets++;
 
         return NET_XMIT_SUCCESS;
@@ -338,7 +343,7 @@ static inline struct sk_buff *__qdisc_dequeue_head(struct Qdisc *sch,
         struct sk_buff *skb = __skb_dequeue(list);
 
         if (likely(skb != NULL))
-                sch->qstats.backlog -= skb->len;
+                sch->qstats.backlog -= qdisc_pkt_len(skb);
 
         return skb;
 }
@@ -354,7 +359,7 @@ static inline struct sk_buff *__qdisc_dequeue_tail(struct Qdisc *sch,
         struct sk_buff *skb = __skb_dequeue_tail(list);
 
         if (likely(skb != NULL))
-                sch->qstats.backlog -= skb->len;
+                sch->qstats.backlog -= qdisc_pkt_len(skb);
 
         return skb;
 }
@@ -368,7 +373,7 @@ static inline int __qdisc_requeue(struct sk_buff *skb, struct Qdisc *sch,
                                   struct sk_buff_head *list)
 {
         __skb_queue_head(list, skb);
-        sch->qstats.backlog += skb->len;
+        sch->qstats.backlog += qdisc_pkt_len(skb);
         sch->qstats.requeues++;
 
         return NET_XMIT_SUCCESS;
@@ -401,7 +406,7 @@ static inline unsigned int __qdisc_queue_drop(struct Qdisc *sch,
         struct sk_buff *skb = __qdisc_dequeue_tail(sch, list);
 
         if (likely(skb != NULL)) {
-                unsigned int len = skb->len;
+                unsigned int len = qdisc_pkt_len(skb);
                 kfree_skb(skb);
                 return len;
         }