[PKT_SCHED]: Kill pkt_act.h inlining.

This was simply making templates of functions and mostly causing a lot
of code duplication in the classifier action modules.

We solve this more cleanly by having a common "struct tcf_common" that
hash worker functions contained once in act_api.c can work with.

Callers work with real action objects that have the common struct
plus their module specific struct members.  You go from a common
object to the higher level one using a "to_foo()" macro which makes
use of container_of() to do the dirty work.

This also kills off act_generic.h which was only used by act_simple.c
and keeping it around was more work than the it's value.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/tc_act/tc_pedit.h b/include/net/tc_act/tc_pedit.h
index eb21689..e6f6e15 100644
--- a/include/net/tc_act/tc_pedit.h
+++ b/include/net/tc_act/tc_pedit.h
@@ -3,12 +3,13 @@
 
 #include <net/act_api.h>
 
-struct tcf_pedit
-{
-	tca_gen(pedit);
-	unsigned char           nkeys;
-	unsigned char           flags;
-	struct tc_pedit_key     *keys;
+struct tcf_pedit {
+	struct tcf_common	common;
+	unsigned char		tcfp_nkeys;
+	unsigned char		tcfp_flags;
+	struct tc_pedit_key	*tcfp_keys;
 };
+#define to_pedit(pc) \
+	container_of(pc, struct tcf_pedit, common)
 
-#endif
+#endif /* __NET_TC_PED_H */