[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_gact.h b/include/net/tc_act/tc_gact.h
index 59f0d96..9e3f676 100644
--- a/include/net/tc_act/tc_gact.h
+++ b/include/net/tc_act/tc_gact.h
@@ -3,15 +3,15 @@
 
 #include <net/act_api.h>
 
-struct tcf_gact
-{
-        tca_gen(gact);
+struct tcf_gact {
+	struct tcf_common	common;
 #ifdef CONFIG_GACT_PROB
-        u16                 ptype;
-        u16                 pval;
-        int                 paction;
+        u16			tcfg_ptype;
+        u16			tcfg_pval;
+        int			tcfg_paction;
 #endif
-                                                                                
 };
-                                                                                
-#endif
+#define to_gact(pc) \
+	container_of(pc, struct tcf_gact, common)
+
+#endif /* __NET_TC_GACT_H */