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authorWANG Cong <xiyou.wangcong@gmail.com>2013-12-15 20:15:05 -0800
committerDavid S. Miller <davem@davemloft.net>2013-12-18 12:52:07 -0500
commit33be627159913b094bb578e83e9a7fdc66c10208 (patch)
tree387945e9391082d0b78890b176111a53b8897bf3 /include/net/pkt_cls.h
parentd84231d3a2b20bea26327d9b83c8bd8ba55dc68c (diff)
downloadblackbird-op-linux-33be627159913b094bb578e83e9a7fdc66c10208.tar.gz
blackbird-op-linux-33be627159913b094bb578e83e9a7fdc66c10208.zip
net_sched: act: use standard struct list_head
Currently actions are chained by a singly linked list, therefore it is a bit hard to add and remove a specific entry. Convert it to struct list_head so that in the latter patch we can remove an action without finding its head. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/pkt_cls.h')
-rw-r--r--include/net/pkt_cls.h16
1 files changed, 12 insertions, 4 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 2ebef77a2f9a..34fe693ddf9a 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -62,7 +62,8 @@ tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r)
struct tcf_exts {
#ifdef CONFIG_NET_CLS_ACT
- struct tc_action *action;
+ __u32 type; /* for backward compat(TCA_OLD_COMPAT) */
+ struct list_head actions;
#endif
};
@@ -74,6 +75,13 @@ struct tcf_ext_map {
int police;
};
+static inline void tcf_exts_init(struct tcf_exts *exts)
+{
+#ifdef CONFIG_NET_CLS_ACT
+ INIT_LIST_HEAD(&exts->actions);
+#endif
+}
+
/**
* tcf_exts_is_predicative - check if a predicative extension is present
* @exts: tc filter extensions handle
@@ -85,7 +93,7 @@ static inline int
tcf_exts_is_predicative(struct tcf_exts *exts)
{
#ifdef CONFIG_NET_CLS_ACT
- return !!exts->action;
+ return !list_empty(&exts->actions);
#else
return 0;
#endif
@@ -120,8 +128,8 @@ tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts,
struct tcf_result *res)
{
#ifdef CONFIG_NET_CLS_ACT
- if (exts->action)
- return tcf_action_exec(skb, exts->action, res);
+ if (!list_empty(&exts->actions))
+ return tcf_action_exec(skb, &exts->actions, res);
#endif
return 0;
}
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