[NET]: Make and use skb_get_queue_mapping

Make the helper for getting the field, symmetrical to
the "set" one. Return 0 if CONFIG_NETDEVICES_MULTIQUEUE=n

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 11 insertions, 2 deletions

diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c
index ed53aaab4c02..ae419736158e 100644
--- a/drivers/net/cpmac.c
+++ b/drivers/net/cpmac.c
@@ -471,7 +471,7 @@ static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
         }
 
         len = max(skb->len, ETH_ZLEN);
-        queue = skb->queue_mapping;
+        queue = skb_get_queue_mapping(skb);
 #ifdef CONFIG_NETDEVICES_MULTIQUEUE
         netif_stop_subqueue(dev, queue);
 #else
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 369f60a4797d..ecb0edef0b39 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1769,6 +1769,15 @@ static inline void skb_set_queue_mapping(struct sk_buff *skb, u16 queue_mapping)
 #endif
 }
 
+static inline u16 skb_get_queue_mapping(struct sk_buff *skb)
+{
+#ifdef CONFIG_NETDEVICES_MULTIQUEUE
+        return skb->queue_mapping;
+#else
+        return 0;
+#endif
+}
+
 static inline void skb_copy_queue_mapping(struct sk_buff *to, const struct sk_buff *from)
 {
 #ifdef CONFIG_NETDEVICES_MULTIQUEUE
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index be57cf317a7f..a9fad7162b5d 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -266,7 +266,7 @@ static int teql_master_xmit(struct sk_buff *skb, struct net_device *dev)
         int busy;
         int nores;
         int len = skb->len;
-        int subq = skb->queue_mapping;
+        int subq = skb_get_queue_mapping(skb);
         struct sk_buff *skb_res = NULL;
 
         start = master->slaves;