net: sched: ematch: obtain net pointer from blocks

Instead of using tp->q, use block to get the net pointer.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/ematch.c b/net/sched/ematch.c
index 03b677b..1331a4c 100644
--- a/net/sched/ematch.c
+++ b/net/sched/ematch.c
@@ -178,7 +178,7 @@ static int tcf_em_validate(struct tcf_proto *tp,
 	struct tcf_ematch_hdr *em_hdr = nla_data(nla);
 	int data_len = nla_len(nla) - sizeof(*em_hdr);
 	void *data = (void *) em_hdr + sizeof(*em_hdr);
-	struct net *net = dev_net(qdisc_dev(tp->q));
+	struct net *net = tp->chain->block->net;
 
 	if (!TCF_EM_REL_VALID(em_hdr->flags))
 		goto errout;