[PATCH] fix net/sched compile error

[Brian Haley <brian.haley@hp.com>]

Fix compile error in net/sched/cls_flower.c

     net/sched/cls_flower.c: In function ‘fl_set_key’:
     net/sched/cls_flower.c:240:3: error: implicit declaration of function 
‘tcf_change_indev’ [-Werror=implicit-function-declaration]
        err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]);

Introduced in 77b9900ef53ae047e36a37d13a2aa33bb2d60641

Signed-off-by: Brian Haley <brian.haley@hp.com>

diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 9bc654c..8c8f34e 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -234,15 +234,15 @@ static void fl_set_key_val(struct nlattr **tb,
  static int fl_set_key(struct net *net, struct nlattr **tb,
  		      struct fl_flow_key *key, struct fl_flow_key *mask)
  {
-	int err;
-
+#ifdef CONFIG_NET_CLS_IND
  	if (tb[TCA_FLOWER_INDEV]) {
-		err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]);
+		int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]);
  		if (err < 0)
  			return err;
  		key->indev_ifindex = err;
  		mask->indev_ifindex = 0xffffffff;
  	}
+#endif

  	fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
  		       mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,