netlink: make nla_nest_start() add NLA_F_NESTED flag

Even if the NLA_F_NESTED flag was introduced more than 11 years ago, most
netlink based interfaces (including recently added ones) are still not
setting it in kernel generated messages. Without the flag, message parsers
not aware of attribute semantics (e.g. wireshark dissector or libmnl's
mnl_nlmsg_fprintf()) cannot recognize nested attributes and won't display
the structure of their contents.

Unfortunately we cannot just add the flag everywhere as there may be
userspace applications which check nlattr::nla_type directly rather than
through a helper masking out the flags. Therefore the patch renames
nla_nest_start() to nla_nest_start_noflag() and introduces nla_nest_start()
as a wrapper adding NLA_F_NESTED. The calls which add NLA_F_NESTED manually
are rewritten to use nla_nest_start().

Except for changes in include/net/netlink.h, the patch was generated using
this semantic patch:

@@ expression E1, E2; @@
-nla_nest_start(E1, E2)
+nla_nest_start_noflag(E1, E2)

@@ expression E1, E2; @@
-nla_nest_start_noflag(E1, E2 | NLA_F_NESTED)
+nla_nest_start(E1, E2)

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

42 files changed, 70 insertions, 68 deletions

diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 5a87e271d35a..641ad7575f24 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -242,7 +242,7 @@ static int tcf_dump_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
 			       (unsigned long)p->tcfa_tm.lastuse))
 			continue;
 
-		nest = nla_nest_start(skb, n_i);
+		nest = nla_nest_start_noflag(skb, n_i);
 		if (!nest) {
 			index--;
 			goto nla_put_failure;
@@ -299,7 +299,7 @@ static int tcf_del_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
 	struct tc_action *p;
 	unsigned long id = 1;
 
-	nest = nla_nest_start(skb, 0);
+	nest = nla_nest_start_noflag(skb, 0);
 	if (nest == NULL)
 		goto nla_put_failure;
 	if (nla_put_string(skb, TCA_KIND, ops->kind))
@@ -776,7 +776,7 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
 	}
 	rcu_read_unlock();
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 	err = tcf_action_dump_old(skb, a, bind, ref);
@@ -800,7 +800,7 @@ int tcf_action_dump(struct sk_buff *skb, struct tc_action *actions[],
 
 	for (i = 0; i < TCA_ACT_MAX_PRIO && actions[i]; i++) {
 		a = actions[i];
-		nest = nla_nest_start(skb, a->order);
+		nest = nla_nest_start_noflag(skb, a->order);
 		if (nest == NULL)
 			goto nla_put_failure;
 		err = tcf_action_dump_1(skb, a, bind, ref);
@@ -1052,7 +1052,7 @@ static int tca_get_fill(struct sk_buff *skb, struct tc_action *actions[],
 	t->tca__pad1 = 0;
 	t->tca__pad2 = 0;
 
-	nest = nla_nest_start(skb, TCA_ACT_TAB);
+	nest = nla_nest_start_noflag(skb, TCA_ACT_TAB);
 	if (!nest)
 		goto out_nlmsg_trim;
 
@@ -1176,7 +1176,7 @@ static int tca_action_flush(struct net *net, struct nlattr *nla,
 	t->tca__pad1 = 0;
 	t->tca__pad2 = 0;
 
-	nest = nla_nest_start(skb, TCA_ACT_TAB);
+	nest = nla_nest_start_noflag(skb, TCA_ACT_TAB);
 	if (!nest) {
 		NL_SET_ERR_MSG(extack, "Failed to add new netlink message");
 		goto out_module_put;
@@ -1508,7 +1508,7 @@ static int tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb)
 	if (!count_attr)
 		goto out_module_put;
 
-	nest = nla_nest_start(skb, TCA_ACT_TAB);
+	nest = nla_nest_start_noflag(skb, TCA_ACT_TAB);
 	if (nest == NULL)
 		goto out_module_put;
 
diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c
index 31c6ffb6abe7..7a87ce2e5a76 100644
--- a/net/sched/act_ife.c
+++ b/net/sched/act_ife.c
@@ -387,7 +387,7 @@ static int dump_metalist(struct sk_buff *skb, struct tcf_ife_info *ife)
 	if (list_empty(&ife->metalist))
 		return 0;
 
-	nest = nla_nest_start(skb, TCA_IFE_METALST);
+	nest = nla_nest_start_noflag(skb, TCA_IFE_METALST);
 	if (!nest)
 		goto out_nlmsg_trim;
 
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 287793abfaf9..ce4b54fa7834 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -108,14 +108,15 @@ err_out:
 static int tcf_pedit_key_ex_dump(struct sk_buff *skb,
 				 struct tcf_pedit_key_ex *keys_ex, int n)
 {
-	struct nlattr *keys_start = nla_nest_start(skb, TCA_PEDIT_KEYS_EX);
+	struct nlattr *keys_start = nla_nest_start_noflag(skb,
+							  TCA_PEDIT_KEYS_EX);
 
 	if (!keys_start)
 		goto nla_failure;
 	for (; n > 0; n--) {
 		struct nlattr *key_start;
 
-		key_start = nla_nest_start(skb, TCA_PEDIT_KEY_EX);
+		key_start = nla_nest_start_noflag(skb, TCA_PEDIT_KEY_EX);
 		if (!key_start)
 			goto nla_failure;
 
diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index d5aaf90a3971..45c0c253c7e8 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -426,7 +426,7 @@ static int tunnel_key_geneve_opts_dump(struct sk_buff *skb,
 	u8 *src = (u8 *)(info + 1);
 	struct nlattr *start;
 
-	start = nla_nest_start(skb, TCA_TUNNEL_KEY_ENC_OPTS_GENEVE);
+	start = nla_nest_start_noflag(skb, TCA_TUNNEL_KEY_ENC_OPTS_GENEVE);
 	if (!start)
 		return -EMSGSIZE;
 
@@ -460,7 +460,7 @@ static int tunnel_key_opts_dump(struct sk_buff *skb,
 	if (!info->options_len)
 		return 0;
 
-	start = nla_nest_start(skb, TCA_TUNNEL_KEY_ENC_OPTS);
+	start = nla_nest_start_noflag(skb, TCA_TUNNEL_KEY_ENC_OPTS);
 	if (!start)
 		return -EMSGSIZE;
 
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 9115f053883f..78de717afddf 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -3111,7 +3111,7 @@ int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts)
 		 * tc data even if iproute2  was newer - jhs
 		 */
 		if (exts->type != TCA_OLD_COMPAT) {
-			nest = nla_nest_start(skb, exts->action);
+			nest = nla_nest_start_noflag(skb, exts->action);
 			if (nest == NULL)
 				goto nla_put_failure;
 
@@ -3120,7 +3120,7 @@ int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts)
 			nla_nest_end(skb, nest);
 		} else if (exts->police) {
 			struct tc_action *act = tcf_exts_first_act(exts);
-			nest = nla_nest_start(skb, exts->police);
+			nest = nla_nest_start_noflag(skb, exts->police);
 			if (nest == NULL || !act)
 				goto nla_put_failure;
 			if (tcf_action_dump_old(skb, act, 0, 0) < 0)
diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index 687b0af67878..dd5fdb62c6df 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -288,7 +288,7 @@ static int basic_dump(struct net *net, struct tcf_proto *tp, void *fh,
 
 	t->tcm_handle = f->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index b4ac58039cb1..6fd569c5a036 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -591,7 +591,7 @@ static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, void *fh,
 
 	cls_bpf_offload_update_stats(tp, prog);
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index 4c1567854f95..b680dd684282 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -176,7 +176,7 @@ static int cls_cgroup_dump(struct net *net, struct tcf_proto *tp, void *fh,
 
 	t->tcm_handle = head->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index eece1ee26930..cb29fe7d5ed3 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -629,7 +629,7 @@ static int flow_dump(struct net *net, struct tcf_proto *tp, void *fh,
 
 	t->tcm_handle = f->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 0d8968803e98..8d4f7a672f14 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -2051,7 +2051,7 @@ static int fl_dump_key_geneve_opt(struct sk_buff *skb,
 	struct nlattr *nest;
 	int opt_off = 0;
 
-	nest = nla_nest_start(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
+	nest = nla_nest_start_noflag(skb, TCA_FLOWER_KEY_ENC_OPTS_GENEVE);
 	if (!nest)
 		goto nla_put_failure;
 
@@ -2087,7 +2087,7 @@ static int fl_dump_key_options(struct sk_buff *skb, int enc_opt_type,
 	if (!enc_opts->len)
 		return 0;
 
-	nest = nla_nest_start(skb, enc_opt_type);
+	nest = nla_nest_start_noflag(skb, enc_opt_type);
 	if (!nest)
 		goto nla_put_failure;
 
@@ -2333,7 +2333,7 @@ static int fl_dump(struct net *net, struct tcf_proto *tp, void *fh,
 
 	t->tcm_handle = f->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (!nest)
 		goto nla_put_failure;
 
@@ -2384,7 +2384,7 @@ static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)
 	struct fl_flow_key *key, *mask;
 	struct nlattr *nest;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (!nest)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index ad036b00427d..3fcc1d51b9d7 100644
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -402,7 +402,7 @@ static int fw_dump(struct net *net, struct tcf_proto *tp, void *fh,
 	if (!f->res.classid && !tcf_exts_has_actions(&f->exts))
 		return skb->len;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index a13bc351a414..d54fa8e11b9e 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -303,7 +303,7 @@ static int mall_dump(struct net *net, struct tcf_proto *tp, void *fh,
 
 	t->tcm_handle = head->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (!nest)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index f006af23b64a..b3b9b151a61d 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -607,7 +607,7 @@ static int route4_dump(struct net *net, struct tcf_proto *tp, void *fh,
 
 	t->tcm_handle = f->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h
index 0719a21d9c41..fa059cf934a6 100644
--- a/net/sched/cls_rsvp.h
+++ b/net/sched/cls_rsvp.h
@@ -706,7 +706,7 @@ static int rsvp_dump(struct net *net, struct tcf_proto *tp, void *fh,
 
 	t->tcm_handle = f->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
index 24e0a62a65cc..1a2e7d5a8776 100644
--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -601,7 +601,7 @@ static int tcindex_dump(struct net *net, struct tcf_proto *tp, void *fh,
 		 tp, fh, skb, t, p, r);
 	pr_debug("p->perfect %p p->h %p\n", p->perfect, p->h);
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 48e76a3acf8a..499477058b2d 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -1294,7 +1294,7 @@ static int u32_dump(struct net *net, struct tcf_proto *tp, void *fh,
 
 	t->tcm_handle = n->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/ematch.c b/net/sched/ematch.c
index 1331a4c2d8ff..6f2d6a761dbe 100644
--- a/net/sched/ematch.c
+++ b/net/sched/ematch.c
@@ -440,14 +440,14 @@ int tcf_em_tree_dump(struct sk_buff *skb, struct tcf_ematch_tree *tree, int tlv)
 	struct nlattr *top_start;
 	struct nlattr *list_start;
 
-	top_start = nla_nest_start(skb, tlv);
+	top_start = nla_nest_start_noflag(skb, tlv);
 	if (top_start == NULL)
 		goto nla_put_failure;
 
 	if (nla_put(skb, TCA_EMATCH_TREE_HDR, sizeof(tree->hdr), &tree->hdr))
 		goto nla_put_failure;
 
-	list_start = nla_nest_start(skb, TCA_EMATCH_TREE_LIST);
+	list_start = nla_nest_start_noflag(skb, TCA_EMATCH_TREE_LIST);
 	if (list_start == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index c126b9f78d6e..6c81b22d214f 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -542,7 +542,7 @@ static int qdisc_dump_stab(struct sk_buff *skb, struct qdisc_size_table *stab)
 {
 	struct nlattr *nest;
 
-	nest = nla_nest_start(skb, TCA_STAB);
+	nest = nla_nest_start_noflag(skb, TCA_STAB);
 	if (nest == NULL)
 		goto nla_put_failure;
 	if (nla_put(skb, TCA_STAB_BASE, sizeof(stab->szopts), &stab->szopts))
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index d714d3747bcb..c36aa57eb4af 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -609,7 +609,7 @@ static int atm_tc_dump_class(struct Qdisc *sch, unsigned long cl,
 	tcm->tcm_handle = flow->common.classid;
 	tcm->tcm_info = flow->q->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index 259d97bc2abd..50db72fe44de 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -2735,7 +2735,7 @@ static int cake_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct cake_sched_data *q = qdisc_priv(sch);
 	struct nlattr *opts;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (!opts)
 		goto nla_put_failure;
 
@@ -2806,7 +2806,7 @@ nla_put_failure:
 
 static int cake_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
 {
-	struct nlattr *stats = nla_nest_start(d->skb, TCA_STATS_APP);
+	struct nlattr *stats = nla_nest_start_noflag(d->skb, TCA_STATS_APP);
 	struct cake_sched_data *q = qdisc_priv(sch);
 	struct nlattr *tstats, *ts;
 	int i;
@@ -2836,7 +2836,7 @@ static int cake_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
 #undef PUT_STAT_U32
 #undef PUT_STAT_U64
 
-	tstats = nla_nest_start(d->skb, TCA_CAKE_STATS_TIN_STATS);
+	tstats = nla_nest_start_noflag(d->skb, TCA_CAKE_STATS_TIN_STATS);
 	if (!tstats)
 		goto nla_put_failure;
 
@@ -2853,7 +2853,7 @@ static int cake_dump_stats(struct Qdisc *sch, struct gnet_dump *d)
 	for (i = 0; i < q->tin_cnt; i++) {
 		struct cake_tin_data *b = &q->tins[q->tin_order[i]];
 
-		ts = nla_nest_start(d->skb, i + 1);
+		ts = nla_nest_start_noflag(d->skb, i + 1);
 		if (!ts)
 			goto nla_put_failure;
 
@@ -2973,7 +2973,7 @@ static int cake_dump_class_stats(struct Qdisc *sch, unsigned long cl,
 	if (flow) {
 		ktime_t now = ktime_get();
 
-		stats = nla_nest_start(d->skb, TCA_STATS_APP);
+		stats = nla_nest_start_noflag(d->skb, TCA_STATS_APP);
 		if (!stats)
 			return -1;
 
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 114b9048ea7e..243bce4b888b 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1305,7 +1305,7 @@ static int cbq_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct cbq_sched_data *q = qdisc_priv(sch);
 	struct nlattr *nest;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 	if (cbq_dump_attr(skb, &q->link) < 0)
@@ -1340,7 +1340,7 @@ cbq_dump_class(struct Qdisc *sch, unsigned long arg,
 	tcm->tcm_handle = cl->common.classid;
 	tcm->tcm_info = cl->q->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 	if (cbq_dump_attr(skb, cl) < 0)
diff --git a/net/sched/sch_cbs.c b/net/sched/sch_cbs.c
index f68fd7a0e038..adffc6d68c06 100644
--- a/net/sched/sch_cbs.c
+++ b/net/sched/sch_cbs.c
@@ -449,7 +449,7 @@ static int cbs_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct tc_cbs_qopt opt = { };
 	struct nlattr *nest;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (!nest)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index eafc0d17d174..eda21dc94bde 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -452,7 +452,7 @@ static int choke_dump(struct Qdisc *sch, struct sk_buff *skb)
 		.Scell_log	= q->parms.Scell_log,
 	};
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_codel.c b/net/sched/sch_codel.c
index 17cd81f84b5d..60ac4e61ce3a 100644
--- a/net/sched/sch_codel.c
+++ b/net/sched/sch_codel.c
@@ -217,7 +217,7 @@ static int codel_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct codel_sched_data *q = qdisc_priv(sch);
 	struct nlattr *opts;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index 430df9a55ec4..022db73fd5a9 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -244,7 +244,7 @@ static int drr_dump_class(struct Qdisc *sch, unsigned long arg,
 	tcm->tcm_handle	= cl->common.classid;
 	tcm->tcm_info	= cl->qdisc->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 	if (nla_put_u32(skb, TCA_DRR_QUANTUM, cl->quantum))
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 42471464ded3..cdf744e710f1 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -432,7 +432,7 @@ static int dsmark_dump_class(struct Qdisc *sch, unsigned long cl,
 	tcm->tcm_handle = TC_H_MAKE(TC_H_MAJ(sch->handle), cl - 1);
 	tcm->tcm_info = p->q->handle;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 	if (nla_put_u8(skb, TCA_DSMARK_MASK, p->mv[cl - 1].mask) ||
@@ -451,7 +451,7 @@ static int dsmark_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct dsmark_qdisc_data *p = qdisc_priv(sch);
 	struct nlattr *opts = NULL;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 	if (nla_put_u16(skb, TCA_DSMARK_INDICES, p->indices))
diff --git a/net/sched/sch_etf.c b/net/sched/sch_etf.c
index 1150f22983df..67107caa287c 100644
--- a/net/sched/sch_etf.c
+++ b/net/sched/sch_etf.c
@@ -460,7 +460,7 @@ static int etf_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct tc_etf_qopt opt = { };
 	struct nlattr *nest;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (!nest)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index 1a662f2bb7bb..5ca370e78d3a 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -823,7 +823,7 @@ static int fq_dump(struct Qdisc *sch, struct sk_buff *skb)
 	u64 ce_threshold = q->ce_threshold;
 	struct nlattr *opts;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index cd04d40c30b6..825a933b019a 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -527,7 +527,7 @@ static int fq_codel_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct fq_codel_sched_data *q = qdisc_priv(sch);
 	struct nlattr *opts;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c
index 234afbf9115b..9bfa15e12d23 100644
--- a/net/sched/sch_gred.c
+++ b/net/sched/sch_gred.c
@@ -772,7 +772,7 @@ static int gred_dump(struct Qdisc *sch, struct sk_buff *skb)
 	if (gred_offload_dump_stats(sch))
 		goto nla_put_failure;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 	if (nla_put(skb, TCA_GRED_DPS, sizeof(sopt), &sopt))
@@ -790,7 +790,7 @@ static int gred_dump(struct Qdisc *sch, struct sk_buff *skb)
 		goto nla_put_failure;
 
 	/* Old style all-in-one dump of VQs */
-	parms = nla_nest_start(skb, TCA_GRED_PARMS);
+	parms = nla_nest_start_noflag(skb, TCA_GRED_PARMS);
 	if (parms == NULL)
 		goto nla_put_failure;
 
@@ -841,7 +841,7 @@ append_opt:
 	nla_nest_end(skb, parms);
 
 	/* Dump the VQs again, in more structured way */
-	vqs = nla_nest_start(skb, TCA_GRED_VQ_LIST);
+	vqs = nla_nest_start_noflag(skb, TCA_GRED_VQ_LIST);
 	if (!vqs)
 		goto nla_put_failure;
 
@@ -852,7 +852,7 @@ append_opt:
 		if (!q)
 			continue;
 
-		vq = nla_nest_start(skb, TCA_GRED_VQ_ENTRY);
+		vq = nla_nest_start_noflag(skb, TCA_GRED_VQ_ENTRY);
 		if (!vq)
 			goto nla_put_failure;
 
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index d2ab463f22ae..97d2fb91c39f 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1300,7 +1300,7 @@ hfsc_dump_class(struct Qdisc *sch, unsigned long arg, struct sk_buff *skb,
 	if (cl->level == 0)
 		tcm->tcm_info = cl->qdisc->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 	if (hfsc_dump_curves(skb, cl) < 0)
diff --git a/net/sched/sch_hhf.c b/net/sched/sch_hhf.c
index 9d6a47697406..43bc159c4f7c 100644
--- a/net/sched/sch_hhf.c
+++ b/net/sched/sch_hhf.c
@@ -654,7 +654,7 @@ static int hhf_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct hhf_sched_data *q = qdisc_priv(sch);
 	struct nlattr *opts;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 2f9883b196e8..64010aec5437 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1057,7 +1057,7 @@ static int htb_dump(struct Qdisc *sch, struct sk_buff *skb)
 	gopt.defcls = q->defcls;
 	gopt.debug = 0;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 	if (nla_put(skb, TCA_HTB_INIT, sizeof(gopt), &gopt) ||
@@ -1086,7 +1086,7 @@ static int htb_dump_class(struct Qdisc *sch, unsigned long arg,
 	if (!cl->level && cl->leaf.q)
 		tcm->tcm_info = cl->leaf.q->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c
index ce3f55259d0d..0bac926b46c7 100644
--- a/net/sched/sch_ingress.c
+++ b/net/sched/sch_ingress.c
@@ -106,7 +106,7 @@ static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb)
 {
 	struct nlattr *nest;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index ea0dc112b38d..7afefed72d35 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -349,7 +349,7 @@ static int dump_rates(struct mqprio_sched *priv,
 	int i;
 
 	if (priv->flags & TC_MQPRIO_F_MIN_RATE) {
-		nest = nla_nest_start(skb, TCA_MQPRIO_MIN_RATE64);
+		nest = nla_nest_start_noflag(skb, TCA_MQPRIO_MIN_RATE64);
 		if (!nest)
 			goto nla_put_failure;
 
@@ -363,7 +363,7 @@ static int dump_rates(struct mqprio_sched *priv,
 	}
 
 	if (priv->flags & TC_MQPRIO_F_MAX_RATE) {
-		nest = nla_nest_start(skb, TCA_MQPRIO_MAX_RATE64);
+		nest = nla_nest_start_noflag(skb, TCA_MQPRIO_MAX_RATE64);
 		if (!nest)
 			goto nla_put_failure;
 
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index cc9d8133afcd..0242c0d4a2d0 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -1079,7 +1079,7 @@ static int dump_loss_model(const struct netem_sched_data *q,
 {
 	struct nlattr *nest;
 
-	nest = nla_nest_start(skb, TCA_NETEM_LOSS);
+	nest = nla_nest_start_noflag(skb, TCA_NETEM_LOSS);
 	if (nest == NULL)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_pie.c b/net/sched/sch_pie.c
index 1cc0c7b74aa3..9bf41f4a2312 100644
--- a/net/sched/sch_pie.c
+++ b/net/sched/sch_pie.c
@@ -491,7 +491,7 @@ static int pie_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct pie_sched_data *q = qdisc_priv(sch);
 	struct nlattr *opts;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (!opts)
 		goto nla_put_failure;
 
diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index 1589364b54da..bab2d4026e8b 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -619,7 +619,7 @@ static int qfq_dump_class(struct Qdisc *sch, unsigned long arg,
 	tcm->tcm_handle	= cl->common.classid;
 	tcm->tcm_info	= cl->qdisc->handle;
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;
 	if (nla_put_u32(skb, TCA_QFQ_WEIGHT, cl->agg->class_weight) ||
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 4e8c0abf6194..b9f34e057e87 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -318,7 +318,7 @@ static int red_dump(struct Qdisc *sch, struct sk_buff *skb)
 	if (err)
 		goto nla_put_failure;
 
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 	if (nla_put(skb, TCA_RED_PARMS, sizeof(opt), &opt) ||
diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c
index 2419fdb75966..f54b00a431a3 100644
--- a/net/sched/sch_sfb.c
+++ b/net/sched/sch_sfb.c
@@ -580,7 +580,7 @@ static int sfb_dump(struct Qdisc *sch, struct sk_buff *skb)
 	};
 
 	sch->qstats.backlog = q->qdisc->qstats.backlog;
-	opts = nla_nest_start(skb, TCA_OPTIONS);
+	opts = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;
 	if (nla_put(skb, TCA_SFB_PARMS, sizeof(opt), &opt))
diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c
index df848a36b222..e016ee07dd1f 100644
--- a/net/sched/sch_taprio.c
+++ b/net/sched/sch_taprio.c
@@ -841,7 +841,7 @@ static int dump_entry(struct sk_buff *msg,
 {
 	struct nlattr *item;
 
-	item = nla_nest_start(msg, TCA_TAPRIO_SCHED_ENTRY);
+	item = nla_nest_start_noflag(msg, TCA_TAPRIO_SCHED_ENTRY);
 	if (!item)
 		return -ENOSPC;
 
@@ -883,7 +883,7 @@ static int taprio_dump(struct Qdisc *sch, struct sk_buff *skb)
 		opt.offset[i] = dev->tc_to_txq[i].offset;
 	}
 
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (!nest)
 		return -ENOSPC;
 
@@ -897,7 +897,8 @@ static int taprio_dump(struct Qdisc *sch, struct sk_buff *skb)
 	if (nla_put_s32(skb, TCA_TAPRIO_ATTR_SCHED_CLOCKID, q->clockid))
 		goto options_error;
 
-	entry_list = nla_nest_start(skb, TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST);
+	entry_list = nla_nest_start_noflag(skb,
+					   TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST);
 	if (!entry_list)
 		goto options_error;
 
diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index f71578dbb9e3..3ae5a29eeab3 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -448,7 +448,7 @@ static int tbf_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct tc_tbf_qopt opt;
 
 	sch->qstats.backlog = q->qdisc->qstats.backlog;
-	nest = nla_nest_start(skb, TCA_OPTIONS);
+	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
 	if (nest == NULL)
 		goto nla_put_failure;