net: sched: extend TCA_ACT space with TCA_ACT_FLAGS

Extend TCA_ACT space with nla_bitfield32 flags. Add
TCA_ACT_FLAGS_NO_PERCPU_STATS as the only allowed flag. Parse the flags in
tcf_action_init_1() and pass resulting value as additional argument to
a_o->init().

Signed-off-by: Vlad Buslov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
diff --git a/net/sched/act_connmark.c b/net/sched/act_connmark.c
index 2b43cac..2e0ec6f 100644
--- a/net/sched/act_connmark.c
+++ b/net/sched/act_connmark.c
@@ -94,7 +94,7 @@ static const struct nla_policy connmark_policy[TCA_CONNMARK_MAX + 1] = {
 static int tcf_connmark_init(struct net *net, struct nlattr *nla,
 			     struct nlattr *est, struct tc_action **a,
 			     int ovr, int bind, bool rtnl_held,
-			     struct tcf_proto *tp,
+			     struct tcf_proto *tp, u32 flags,
 			     struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, connmark_net_id);