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net: sched: introduce helpers to work with filter chains

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Introduce struct tcf_chain object and set of helpers around it. Wraps up
insertion, deletion and search in the filter chain.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2017-05-17 11:07:59 +02:00
committed by David S. Miller
parent 7961973a00
commit 2190d1d094
2 changed files with 113 additions and 42 deletions
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7
include/net/sch_generic.h
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@ -248,10 +248,15 @@ struct qdisc_skb_cb {
unsigned char data[QDISC_CB_PRIV_LEN];
};
struct tcf_block {
struct tcf_chain {
struct tcf_proto __rcu *filter_chain;
struct tcf_proto __rcu **p_filter_chain;
};
struct tcf_block {
struct tcf_chain *chain;
};
static inline void qdisc_cb_private_validate(const struct sk_buff *skb, int sz)
{
struct qdisc_skb_cb *qcb;