[PKT_SCHED]: Convert tc action functions to single skb pointers

tcf_action_exec only gets a single skb pointer and doesn't own the skb,
but passes double skb pointers (to a local variable) to the action
functions. Change to use single skb pointers everywhere.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 2ce1cb2..bd651a4 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -165,7 +165,7 @@
 	while ((a = act) != NULL) {
 repeat:
 		if (a->ops && a->ops->act) {
-			ret = a->ops->act(&skb, a, res);
+			ret = a->ops->act(skb, a, res);
 			if (TC_MUNGED & skb->tc_verd) {
 				/* copied already, allow trampling */
 				skb->tc_verd = SET_TC_OK2MUNGE(skb->tc_verd);