From: Jiri Pirko <jiri@mellanox.com>
Date: Fri, 4 Aug 2017 14:29:09 +0200
Subject: net: sched: cls_basic: no need to call tcf_exts_change for newly
 allocated struct
Patch-mainline: v4.14-rc1
Git-commit: ff1f8ca0805ab03c31e14a9356aa2ac81d65c338
References: bsc#1109837

As the f struct was allocated right before basic_set_parms call, no need
to use tcf_exts_change to do atomic change, and we can just fill-up
the unused exts struct directly by tcf_exts_validate.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 net/sched/cls_basic.c |   13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -129,31 +129,22 @@ static int basic_set_parms(struct net *n
 			   struct nlattr *est, bool ovr)
 {
 	int err;
-	struct tcf_exts e;
 
-	err = tcf_exts_init(&e, TCA_BASIC_ACT, TCA_BASIC_POLICE);
+	err = tcf_exts_validate(net, tp, tb, est, &f->exts, ovr);
 	if (err < 0)
 		return err;
-	err = tcf_exts_validate(net, tp, tb, est, &e, ovr);
-	if (err < 0)
-		goto errout;
 
 	err = tcf_em_tree_validate(tp, tb[TCA_BASIC_EMATCHES], &f->ematches);
 	if (err < 0)
-		goto errout;
+		return err;
 
 	if (tb[TCA_BASIC_CLASSID]) {
 		f->res.classid = nla_get_u32(tb[TCA_BASIC_CLASSID]);
 		tcf_bind_filter(tp, &f->res, base);
 	}
 
-	tcf_exts_change(tp, &f->exts, &e);
 	f->tp = tp;
-
 	return 0;
-errout:
-	tcf_exts_destroy(&e);
-	return err;
 }
 
 static int basic_change(struct net *net, struct sk_buff *in_skb,