Adding upstream version 6.1.82.upstream/6.1.82upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 706 deletions

diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
deleted file mode 100644
index 4a981ca90..000000000
--- a/net/sched/sch_atm.c
+++ /dev/null
@@ -1,706 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* net/sched/sch_atm.c - ATM VC selection "queueing discipline" */
-
-/* Written 1998-2000 by Werner Almesberger, EPFL ICA */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/skbuff.h>
-#include <linux/atmdev.h>
-#include <linux/atmclip.h>
-#include <linux/rtnetlink.h>
-#include <linux/file.h>		/* for fput */
-#include <net/netlink.h>
-#include <net/pkt_sched.h>
-#include <net/pkt_cls.h>
-
-/*
- * The ATM queuing discipline provides a framework for invoking classifiers
- * (aka "filters"), which in turn select classes of this queuing discipline.
- * Each class maps the flow(s) it is handling to a given VC. Multiple classes
- * may share the same VC.
- *
- * When creating a class, VCs are specified by passing the number of the open
- * socket descriptor by which the calling process references the VC. The kernel
- * keeps the VC open at least until all classes using it are removed.
- *
- * In this file, most functions are named atm_tc_* to avoid confusion with all
- * the atm_* in net/atm. This naming convention differs from what's used in the
- * rest of net/sched.
- *
- * Known bugs:
- *  - sometimes messes up the IP stack
- *  - any manipulations besides the few operations described in the README, are
- *    untested and likely to crash the system
- *  - should lock the flow while there is data in the queue (?)
- */
-
-#define VCC2FLOW(vcc) ((struct atm_flow_data *) ((vcc)->user_back))
-
-struct atm_flow_data {
-	struct Qdisc_class_common common;
-	struct Qdisc		*q;	/* FIFO, TBF, etc. */
-	struct tcf_proto __rcu	*filter_list;
-	struct tcf_block	*block;
-	struct atm_vcc		*vcc;	/* VCC; NULL if VCC is closed */
-	void			(*old_pop)(struct atm_vcc *vcc,
-					   struct sk_buff *skb); /* chaining */
-	struct atm_qdisc_data	*parent;	/* parent qdisc */
-	struct socket		*sock;		/* for closing */
-	int			ref;		/* reference count */
-	struct gnet_stats_basic_sync	bstats;
-	struct gnet_stats_queue	qstats;
-	struct list_head	list;
-	struct atm_flow_data	*excess;	/* flow for excess traffic;
-						   NULL to set CLP instead */
-	int			hdr_len;
-	unsigned char		hdr[];		/* header data; MUST BE LAST */
-};
-
-struct atm_qdisc_data {
-	struct atm_flow_data	link;		/* unclassified skbs go here */
-	struct list_head	flows;		/* NB: "link" is also on this
-						   list */
-	struct tasklet_struct	task;		/* dequeue tasklet */
-};
-
-/* ------------------------- Class/flow operations ------------------------- */
-
-static inline struct atm_flow_data *lookup_flow(struct Qdisc *sch, u32 classid)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow;
-
-	list_for_each_entry(flow, &p->flows, list) {
-		if (flow->common.classid == classid)
-			return flow;
-	}
-	return NULL;
-}
-
-static int atm_tc_graft(struct Qdisc *sch, unsigned long arg,
-			struct Qdisc *new, struct Qdisc **old,
-			struct netlink_ext_ack *extack)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow = (struct atm_flow_data *)arg;
-
-	pr_debug("atm_tc_graft(sch %p,[qdisc %p],flow %p,new %p,old %p)\n",
-		sch, p, flow, new, old);
-	if (list_empty(&flow->list))
-		return -EINVAL;
-	if (!new)
-		new = &noop_qdisc;
-	*old = flow->q;
-	flow->q = new;
-	if (*old)
-		qdisc_reset(*old);
-	return 0;
-}
-
-static struct Qdisc *atm_tc_leaf(struct Qdisc *sch, unsigned long cl)
-{
-	struct atm_flow_data *flow = (struct atm_flow_data *)cl;
-
-	pr_debug("atm_tc_leaf(sch %p,flow %p)\n", sch, flow);
-	return flow ? flow->q : NULL;
-}
-
-static unsigned long atm_tc_find(struct Qdisc *sch, u32 classid)
-{
-	struct atm_qdisc_data *p __maybe_unused = qdisc_priv(sch);
-	struct atm_flow_data *flow;
-
-	pr_debug("%s(sch %p,[qdisc %p],classid %x)\n", __func__, sch, p, classid);
-	flow = lookup_flow(sch, classid);
-	pr_debug("%s: flow %p\n", __func__, flow);
-	return (unsigned long)flow;
-}
-
-static unsigned long atm_tc_bind_filter(struct Qdisc *sch,
-					unsigned long parent, u32 classid)
-{
-	struct atm_qdisc_data *p __maybe_unused = qdisc_priv(sch);
-	struct atm_flow_data *flow;
-
-	pr_debug("%s(sch %p,[qdisc %p],classid %x)\n", __func__, sch, p, classid);
-	flow = lookup_flow(sch, classid);
-	if (flow)
-		flow->ref++;
-	pr_debug("%s: flow %p\n", __func__, flow);
-	return (unsigned long)flow;
-}
-
-/*
- * atm_tc_put handles all destructions, including the ones that are explicitly
- * requested (atm_tc_destroy, etc.). The assumption here is that we never drop
- * anything that still seems to be in use.
- */
-static void atm_tc_put(struct Qdisc *sch, unsigned long cl)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow = (struct atm_flow_data *)cl;
-
-	pr_debug("atm_tc_put(sch %p,[qdisc %p],flow %p)\n", sch, p, flow);
-	if (--flow->ref)
-		return;
-	pr_debug("atm_tc_put: destroying\n");
-	list_del_init(&flow->list);
-	pr_debug("atm_tc_put: qdisc %p\n", flow->q);
-	qdisc_put(flow->q);
-	tcf_block_put(flow->block);
-	if (flow->sock) {
-		pr_debug("atm_tc_put: f_count %ld\n",
-			file_count(flow->sock->file));
-		flow->vcc->pop = flow->old_pop;
-		sockfd_put(flow->sock);
-	}
-	if (flow->excess)
-		atm_tc_put(sch, (unsigned long)flow->excess);
-	if (flow != &p->link)
-		kfree(flow);
-	/*
-	 * If flow == &p->link, the qdisc no longer works at this point and
-	 * needs to be removed. (By the caller of atm_tc_put.)
-	 */
-}
-
-static void sch_atm_pop(struct atm_vcc *vcc, struct sk_buff *skb)
-{
-	struct atm_qdisc_data *p = VCC2FLOW(vcc)->parent;
-
-	pr_debug("sch_atm_pop(vcc %p,skb %p,[qdisc %p])\n", vcc, skb, p);
-	VCC2FLOW(vcc)->old_pop(vcc, skb);
-	tasklet_schedule(&p->task);
-}
-
-static const u8 llc_oui_ip[] = {
-	0xaa,			/* DSAP: non-ISO */
-	0xaa,			/* SSAP: non-ISO */
-	0x03,			/* Ctrl: Unnumbered Information Command PDU */
-	0x00,			/* OUI: EtherType */
-	0x00, 0x00,
-	0x08, 0x00
-};				/* Ethertype IP (0800) */
-
-static const struct nla_policy atm_policy[TCA_ATM_MAX + 1] = {
-	[TCA_ATM_FD]		= { .type = NLA_U32 },
-	[TCA_ATM_EXCESS]	= { .type = NLA_U32 },
-};
-
-static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent,
-			 struct nlattr **tca, unsigned long *arg,
-			 struct netlink_ext_ack *extack)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow = (struct atm_flow_data *)*arg;
-	struct atm_flow_data *excess = NULL;
-	struct nlattr *opt = tca[TCA_OPTIONS];
-	struct nlattr *tb[TCA_ATM_MAX + 1];
-	struct socket *sock;
-	int fd, error, hdr_len;
-	void *hdr;
-
-	pr_debug("atm_tc_change(sch %p,[qdisc %p],classid %x,parent %x,"
-		"flow %p,opt %p)\n", sch, p, classid, parent, flow, opt);
-	/*
-	 * The concept of parents doesn't apply for this qdisc.
-	 */
-	if (parent && parent != TC_H_ROOT && parent != sch->handle)
-		return -EINVAL;
-	/*
-	 * ATM classes cannot be changed. In order to change properties of the
-	 * ATM connection, that socket needs to be modified directly (via the
-	 * native ATM API. In order to send a flow to a different VC, the old
-	 * class needs to be removed and a new one added. (This may be changed
-	 * later.)
-	 */
-	if (flow)
-		return -EBUSY;
-	if (opt == NULL)
-		return -EINVAL;
-
-	error = nla_parse_nested_deprecated(tb, TCA_ATM_MAX, opt, atm_policy,
-					    NULL);
-	if (error < 0)
-		return error;
-
-	if (!tb[TCA_ATM_FD])
-		return -EINVAL;
-	fd = nla_get_u32(tb[TCA_ATM_FD]);
-	pr_debug("atm_tc_change: fd %d\n", fd);
-	if (tb[TCA_ATM_HDR]) {
-		hdr_len = nla_len(tb[TCA_ATM_HDR]);
-		hdr = nla_data(tb[TCA_ATM_HDR]);
-	} else {
-		hdr_len = RFC1483LLC_LEN;
-		hdr = NULL;	/* default LLC/SNAP for IP */
-	}
-	if (!tb[TCA_ATM_EXCESS])
-		excess = NULL;
-	else {
-		excess = (struct atm_flow_data *)
-			atm_tc_find(sch, nla_get_u32(tb[TCA_ATM_EXCESS]));
-		if (!excess)
-			return -ENOENT;
-	}
-	pr_debug("atm_tc_change: type %d, payload %d, hdr_len %d\n",
-		 opt->nla_type, nla_len(opt), hdr_len);
-	sock = sockfd_lookup(fd, &error);
-	if (!sock)
-		return error;	/* f_count++ */
-	pr_debug("atm_tc_change: f_count %ld\n", file_count(sock->file));
-	if (sock->ops->family != PF_ATMSVC && sock->ops->family != PF_ATMPVC) {
-		error = -EPROTOTYPE;
-		goto err_out;
-	}
-	/* @@@ should check if the socket is really operational or we'll crash
-	   on vcc->send */
-	if (classid) {
-		if (TC_H_MAJ(classid ^ sch->handle)) {
-			pr_debug("atm_tc_change: classid mismatch\n");
-			error = -EINVAL;
-			goto err_out;
-		}
-	} else {
-		int i;
-		unsigned long cl;
-
-		for (i = 1; i < 0x8000; i++) {
-			classid = TC_H_MAKE(sch->handle, 0x8000 | i);
-			cl = atm_tc_find(sch, classid);
-			if (!cl)
-				break;
-		}
-	}
-	pr_debug("atm_tc_change: new id %x\n", classid);
-	flow = kzalloc(sizeof(struct atm_flow_data) + hdr_len, GFP_KERNEL);
-	pr_debug("atm_tc_change: flow %p\n", flow);
-	if (!flow) {
-		error = -ENOBUFS;
-		goto err_out;
-	}
-
-	error = tcf_block_get(&flow->block, &flow->filter_list, sch,
-			      extack);
-	if (error) {
-		kfree(flow);
-		goto err_out;
-	}
-
-	flow->q = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops, classid,
-				    extack);
-	if (!flow->q)
-		flow->q = &noop_qdisc;
-	pr_debug("atm_tc_change: qdisc %p\n", flow->q);
-	flow->sock = sock;
-	flow->vcc = ATM_SD(sock);	/* speedup */
-	flow->vcc->user_back = flow;
-	pr_debug("atm_tc_change: vcc %p\n", flow->vcc);
-	flow->old_pop = flow->vcc->pop;
-	flow->parent = p;
-	flow->vcc->pop = sch_atm_pop;
-	flow->common.classid = classid;
-	flow->ref = 1;
-	flow->excess = excess;
-	list_add(&flow->list, &p->link.list);
-	flow->hdr_len = hdr_len;
-	if (hdr)
-		memcpy(flow->hdr, hdr, hdr_len);
-	else
-		memcpy(flow->hdr, llc_oui_ip, sizeof(llc_oui_ip));
-	*arg = (unsigned long)flow;
-	return 0;
-err_out:
-	sockfd_put(sock);
-	return error;
-}
-
-static int atm_tc_delete(struct Qdisc *sch, unsigned long arg,
-			 struct netlink_ext_ack *extack)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow = (struct atm_flow_data *)arg;
-
-	pr_debug("atm_tc_delete(sch %p,[qdisc %p],flow %p)\n", sch, p, flow);
-	if (list_empty(&flow->list))
-		return -EINVAL;
-	if (rcu_access_pointer(flow->filter_list) || flow == &p->link)
-		return -EBUSY;
-	/*
-	 * Reference count must be 2: one for "keepalive" (set at class
-	 * creation), and one for the reference held when calling delete.
-	 */
-	if (flow->ref < 2) {
-		pr_err("atm_tc_delete: flow->ref == %d\n", flow->ref);
-		return -EINVAL;
-	}
-	if (flow->ref > 2)
-		return -EBUSY;	/* catch references via excess, etc. */
-	atm_tc_put(sch, arg);
-	return 0;
-}
-
-static void atm_tc_walk(struct Qdisc *sch, struct qdisc_walker *walker)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow;
-
-	pr_debug("atm_tc_walk(sch %p,[qdisc %p],walker %p)\n", sch, p, walker);
-	if (walker->stop)
-		return;
-	list_for_each_entry(flow, &p->flows, list) {
-		if (!tc_qdisc_stats_dump(sch, (unsigned long)flow, walker))
-			break;
-	}
-}
-
-static struct tcf_block *atm_tc_tcf_block(struct Qdisc *sch, unsigned long cl,
-					  struct netlink_ext_ack *extack)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow = (struct atm_flow_data *)cl;
-
-	pr_debug("atm_tc_find_tcf(sch %p,[qdisc %p],flow %p)\n", sch, p, flow);
-	return flow ? flow->block : p->link.block;
-}
-
-/* --------------------------- Qdisc operations ---------------------------- */
-
-static int atm_tc_enqueue(struct sk_buff *skb, struct Qdisc *sch,
-			  struct sk_buff **to_free)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow;
-	struct tcf_result res;
-	int result;
-	int ret = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
-
-	pr_debug("atm_tc_enqueue(skb %p,sch %p,[qdisc %p])\n", skb, sch, p);
-	result = TC_ACT_OK;	/* be nice to gcc */
-	flow = NULL;
-	if (TC_H_MAJ(skb->priority) != sch->handle ||
-	    !(flow = (struct atm_flow_data *)atm_tc_find(sch, skb->priority))) {
-		struct tcf_proto *fl;
-
-		list_for_each_entry(flow, &p->flows, list) {
-			fl = rcu_dereference_bh(flow->filter_list);
-			if (fl) {
-				result = tcf_classify(skb, NULL, fl, &res, true);
-				if (result < 0)
-					continue;
-				if (result == TC_ACT_SHOT)
-					goto done;
-
-				flow = (struct atm_flow_data *)res.class;
-				if (!flow)
-					flow = lookup_flow(sch, res.classid);
-				goto drop;
-			}
-		}
-		flow = NULL;
-done:
-		;
-	}
-	if (!flow) {
-		flow = &p->link;
-	} else {
-		if (flow->vcc)
-			ATM_SKB(skb)->atm_options = flow->vcc->atm_options;
-		/*@@@ looks good ... but it's not supposed to work :-) */
-#ifdef CONFIG_NET_CLS_ACT
-		switch (result) {
-		case TC_ACT_QUEUED:
-		case TC_ACT_STOLEN:
-		case TC_ACT_TRAP:
-			__qdisc_drop(skb, to_free);
-			return NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
-		case TC_ACT_SHOT:
-			__qdisc_drop(skb, to_free);
-			goto drop;
-		case TC_ACT_RECLASSIFY:
-			if (flow->excess)
-				flow = flow->excess;
-			else
-				ATM_SKB(skb)->atm_options |= ATM_ATMOPT_CLP;
-			break;
-		}
-#endif
-	}
-
-	ret = qdisc_enqueue(skb, flow->q, to_free);
-	if (ret != NET_XMIT_SUCCESS) {
-drop: __maybe_unused
-		if (net_xmit_drop_count(ret)) {
-			qdisc_qstats_drop(sch);
-			if (flow)
-				flow->qstats.drops++;
-		}
-		return ret;
-	}
-	/*
-	 * Okay, this may seem weird. We pretend we've dropped the packet if
-	 * it goes via ATM. The reason for this is that the outer qdisc
-	 * expects to be able to q->dequeue the packet later on if we return
-	 * success at this place. Also, sch->q.qdisc needs to reflect whether
-	 * there is a packet egligible for dequeuing or not. Note that the
-	 * statistics of the outer qdisc are necessarily wrong because of all
-	 * this. There's currently no correct solution for this.
-	 */
-	if (flow == &p->link) {
-		sch->q.qlen++;
-		return NET_XMIT_SUCCESS;
-	}
-	tasklet_schedule(&p->task);
-	return NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
-}
-
-/*
- * Dequeue packets and send them over ATM. Note that we quite deliberately
- * avoid checking net_device's flow control here, simply because sch_atm
- * uses its own channels, which have nothing to do with any CLIP/LANE/or
- * non-ATM interfaces.
- */
-
-static void sch_atm_dequeue(struct tasklet_struct *t)
-{
-	struct atm_qdisc_data *p = from_tasklet(p, t, task);
-	struct Qdisc *sch = qdisc_from_priv(p);
-	struct atm_flow_data *flow;
-	struct sk_buff *skb;
-
-	pr_debug("sch_atm_dequeue(sch %p,[qdisc %p])\n", sch, p);
-	list_for_each_entry(flow, &p->flows, list) {
-		if (flow == &p->link)
-			continue;
-		/*
-		 * If traffic is properly shaped, this won't generate nasty
-		 * little bursts. Otherwise, it may ... (but that's okay)
-		 */
-		while ((skb = flow->q->ops->peek(flow->q))) {
-			if (!atm_may_send(flow->vcc, skb->truesize))
-				break;
-
-			skb = qdisc_dequeue_peeked(flow->q);
-			if (unlikely(!skb))
-				break;
-
-			qdisc_bstats_update(sch, skb);
-			bstats_update(&flow->bstats, skb);
-			pr_debug("atm_tc_dequeue: sending on class %p\n", flow);
-			/* remove any LL header somebody else has attached */
-			skb_pull(skb, skb_network_offset(skb));
-			if (skb_headroom(skb) < flow->hdr_len) {
-				struct sk_buff *new;
-
-				new = skb_realloc_headroom(skb, flow->hdr_len);
-				dev_kfree_skb(skb);
-				if (!new)
-					continue;
-				skb = new;
-			}
-			pr_debug("sch_atm_dequeue: ip %p, data %p\n",
-				 skb_network_header(skb), skb->data);
-			ATM_SKB(skb)->vcc = flow->vcc;
-			memcpy(skb_push(skb, flow->hdr_len), flow->hdr,
-			       flow->hdr_len);
-			refcount_add(skb->truesize,
-				   &sk_atm(flow->vcc)->sk_wmem_alloc);
-			/* atm.atm_options are already set by atm_tc_enqueue */
-			flow->vcc->send(flow->vcc, skb);
-		}
-	}
-}
-
-static struct sk_buff *atm_tc_dequeue(struct Qdisc *sch)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct sk_buff *skb;
-
-	pr_debug("atm_tc_dequeue(sch %p,[qdisc %p])\n", sch, p);
-	tasklet_schedule(&p->task);
-	skb = qdisc_dequeue_peeked(p->link.q);
-	if (skb)
-		sch->q.qlen--;
-	return skb;
-}
-
-static struct sk_buff *atm_tc_peek(struct Qdisc *sch)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-
-	pr_debug("atm_tc_peek(sch %p,[qdisc %p])\n", sch, p);
-
-	return p->link.q->ops->peek(p->link.q);
-}
-
-static int atm_tc_init(struct Qdisc *sch, struct nlattr *opt,
-		       struct netlink_ext_ack *extack)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	int err;
-
-	pr_debug("atm_tc_init(sch %p,[qdisc %p],opt %p)\n", sch, p, opt);
-	INIT_LIST_HEAD(&p->flows);
-	INIT_LIST_HEAD(&p->link.list);
-	gnet_stats_basic_sync_init(&p->link.bstats);
-	list_add(&p->link.list, &p->flows);
-	p->link.q = qdisc_create_dflt(sch->dev_queue,
-				      &pfifo_qdisc_ops, sch->handle, extack);
-	if (!p->link.q)
-		p->link.q = &noop_qdisc;
-	pr_debug("atm_tc_init: link (%p) qdisc %p\n", &p->link, p->link.q);
-	p->link.vcc = NULL;
-	p->link.sock = NULL;
-	p->link.common.classid = sch->handle;
-	p->link.ref = 1;
-
-	err = tcf_block_get(&p->link.block, &p->link.filter_list, sch,
-			    extack);
-	if (err)
-		return err;
-
-	tasklet_setup(&p->task, sch_atm_dequeue);
-	return 0;
-}
-
-static void atm_tc_reset(struct Qdisc *sch)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow;
-
-	pr_debug("atm_tc_reset(sch %p,[qdisc %p])\n", sch, p);
-	list_for_each_entry(flow, &p->flows, list)
-		qdisc_reset(flow->q);
-}
-
-static void atm_tc_destroy(struct Qdisc *sch)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow, *tmp;
-
-	pr_debug("atm_tc_destroy(sch %p,[qdisc %p])\n", sch, p);
-	list_for_each_entry(flow, &p->flows, list) {
-		tcf_block_put(flow->block);
-		flow->block = NULL;
-	}
-
-	list_for_each_entry_safe(flow, tmp, &p->flows, list) {
-		if (flow->ref > 1)
-			pr_err("atm_destroy: %p->ref = %d\n", flow, flow->ref);
-		atm_tc_put(sch, (unsigned long)flow);
-	}
-	tasklet_kill(&p->task);
-}
-
-static int atm_tc_dump_class(struct Qdisc *sch, unsigned long cl,
-			     struct sk_buff *skb, struct tcmsg *tcm)
-{
-	struct atm_qdisc_data *p = qdisc_priv(sch);
-	struct atm_flow_data *flow = (struct atm_flow_data *)cl;
-	struct nlattr *nest;
-
-	pr_debug("atm_tc_dump_class(sch %p,[qdisc %p],flow %p,skb %p,tcm %p)\n",
-		sch, p, flow, skb, tcm);
-	if (list_empty(&flow->list))
-		return -EINVAL;
-	tcm->tcm_handle = flow->common.classid;
-	tcm->tcm_info = flow->q->handle;
-
-	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);
-	if (nest == NULL)
-		goto nla_put_failure;
-
-	if (nla_put(skb, TCA_ATM_HDR, flow->hdr_len, flow->hdr))
-		goto nla_put_failure;
-	if (flow->vcc) {
-		struct sockaddr_atmpvc pvc;
-		int state;
-
-		memset(&pvc, 0, sizeof(pvc));
-		pvc.sap_family = AF_ATMPVC;
-		pvc.sap_addr.itf = flow->vcc->dev ? flow->vcc->dev->number : -1;
-		pvc.sap_addr.vpi = flow->vcc->vpi;
-		pvc.sap_addr.vci = flow->vcc->vci;
-		if (nla_put(skb, TCA_ATM_ADDR, sizeof(pvc), &pvc))
-			goto nla_put_failure;
-		state = ATM_VF2VS(flow->vcc->flags);
-		if (nla_put_u32(skb, TCA_ATM_STATE, state))
-			goto nla_put_failure;
-	}
-	if (flow->excess) {
-		if (nla_put_u32(skb, TCA_ATM_EXCESS, flow->common.classid))
-			goto nla_put_failure;
-	} else {
-		if (nla_put_u32(skb, TCA_ATM_EXCESS, 0))
-			goto nla_put_failure;
-	}
-	return nla_nest_end(skb, nest);
-
-nla_put_failure:
-	nla_nest_cancel(skb, nest);
-	return -1;
-}
-static int
-atm_tc_dump_class_stats(struct Qdisc *sch, unsigned long arg,
-			struct gnet_dump *d)
-{
-	struct atm_flow_data *flow = (struct atm_flow_data *)arg;
-
-	if (gnet_stats_copy_basic(d, NULL, &flow->bstats, true) < 0 ||
-	    gnet_stats_copy_queue(d, NULL, &flow->qstats, flow->q->q.qlen) < 0)
-		return -1;
-
-	return 0;
-}
-
-static int atm_tc_dump(struct Qdisc *sch, struct sk_buff *skb)
-{
-	return 0;
-}
-
-static const struct Qdisc_class_ops atm_class_ops = {
-	.graft		= atm_tc_graft,
-	.leaf		= atm_tc_leaf,
-	.find		= atm_tc_find,
-	.change		= atm_tc_change,
-	.delete		= atm_tc_delete,
-	.walk		= atm_tc_walk,
-	.tcf_block	= atm_tc_tcf_block,
-	.bind_tcf	= atm_tc_bind_filter,
-	.unbind_tcf	= atm_tc_put,
-	.dump		= atm_tc_dump_class,
-	.dump_stats	= atm_tc_dump_class_stats,
-};
-
-static struct Qdisc_ops atm_qdisc_ops __read_mostly = {
-	.cl_ops		= &atm_class_ops,
-	.id		= "atm",
-	.priv_size	= sizeof(struct atm_qdisc_data),
-	.enqueue	= atm_tc_enqueue,
-	.dequeue	= atm_tc_dequeue,
-	.peek		= atm_tc_peek,
-	.init		= atm_tc_init,
-	.reset		= atm_tc_reset,
-	.destroy	= atm_tc_destroy,
-	.dump		= atm_tc_dump,
-	.owner		= THIS_MODULE,
-};
-
-static int __init atm_init(void)
-{
-	return register_qdisc(&atm_qdisc_ops);
-}
-
-static void __exit atm_exit(void)
-{
-	unregister_qdisc(&atm_qdisc_ops);
-}
-
-module_init(atm_init)
-module_exit(atm_exit)
-MODULE_LICENSE("GPL");