net: sched: introduce tcf_block_q and tcf_block_dev helpers

These helpers allows to get a q and netdev pointers
for given block easily.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index e6c9e1e4d71154af554d2db5672639439f630af5..7bed674ba29a732f9b8cd221e8d7b7662cb883f8 100644 (file)
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -24,6 +24,17 @@ void tcf_chain_put(struct tcf_chain *chain);
 int tcf_block_get(struct tcf_block **p_block,
                  struct tcf_proto __rcu **p_filter_chain, struct Qdisc *q);
 void tcf_block_put(struct tcf_block *block);
+
+static inline struct Qdisc *tcf_block_q(struct tcf_block *block)
+{
+       return block->q;
+}
+
+static inline struct net_device *tcf_block_dev(struct tcf_block *block)
+{
+       return tcf_block_q(block)->dev_queue->dev;
+}
+
 int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
                 struct tcf_result *res, bool compat_mode);
 
@@ -39,6 +50,16 @@ static inline void tcf_block_put(struct tcf_block *block)
 {
 }
 
+static inline struct Qdisc *tcf_block_q(struct tcf_block *block)
+{
+       return NULL;
+}
+
+static inline struct net_device *tcf_block_dev(struct tcf_block *block)
+{
+       return NULL;
+}
+
 static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
                               struct tcf_result *res, bool compat_mode)
 {