net_sched: move tc_action into tcf_common
struct tc_action is confusing, currently we use it for two purposes:
1) Pass in arguments and carry out results from helper functions
2) A generic representation for tc actions
The first one is error-prone, since we need to make sure we don't
miss anything. This patch aims to get rid of this use, by moving
tc_action into tcf_common, so that they are allocated together
in hashtable and can be cast'ed easily.
And together with the following patch, we could really make
tc_action a generic representation for all tc actions and each
type of action can inherit from it.
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/tc_act/tc_bpf.h b/include/net/tc_act/tc_bpf.h
index 958d69c..80a4d6f 100644
--- a/include/net/tc_act/tc_bpf.h
+++ b/include/net/tc_act/tc_bpf.h
@@ -23,7 +23,6 @@
struct sock_filter *bpf_ops;
const char *bpf_name;
};
-#define to_bpf(a) \
- container_of(a->priv, struct tcf_bpf, common)
+#define to_bpf(a) ((struct tcf_bpf *)a)
#endif /* __NET_TC_BPF_H */