[NET_SCHED]: Convert packet schedulers from rtnetlink to new netlink API

Convert packet schedulers to use the netlink API. Unfortunately a gradual
conversion is not possible without breaking compilation in the middle or
adding lots of casts, so this patch converts them all in one step. The
patch has been mostly generated automatically with some minor edits to
at least allow seperate conversion of classifiers and actions.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c
index 7ab9060..57abe82 100644
--- a/net/core/gen_estimator.c
+++ b/net/core/gen_estimator.c
@@ -159,13 +159,13 @@
 int gen_new_estimator(struct gnet_stats_basic *bstats,
 		      struct gnet_stats_rate_est *rate_est,
 		      spinlock_t *stats_lock,
-		      struct rtattr *opt)
+		      struct nlattr *opt)
 {
 	struct gen_estimator *est;
-	struct gnet_estimator *parm = RTA_DATA(opt);
+	struct gnet_estimator *parm = nla_data(opt);
 	int idx;
 
-	if (RTA_PAYLOAD(opt) < sizeof(*parm))
+	if (nla_len(opt) < sizeof(*parm))
 		return -EINVAL;
 
 	if (parm->interval < -2 || parm->interval > 3)
@@ -254,7 +254,7 @@
  */
 int gen_replace_estimator(struct gnet_stats_basic *bstats,
 			  struct gnet_stats_rate_est *rate_est,
-			  spinlock_t *stats_lock, struct rtattr *opt)
+			  spinlock_t *stats_lock, struct nlattr *opt)
 {
 	gen_kill_estimator(bstats, rate_est);
 	return gen_new_estimator(bstats, rate_est, stats_lock, opt);