Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

drivers/net/Kconfig

@@ -2032,6 +2032,15 @@ config TIGON3
 	  To compile this driver as a module, choose M here: the module
 	  will be called tg3.  This is recommended.
 
+config BNX2
+	tristate "Broadcom NetXtremeII support"
+	depends on PCI
+	help
+	  This driver supports Broadcom NetXtremeII gigabit Ethernet cards.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called bnx2.  This is recommended.
+
 config GIANFAR
 	tristate "Gianfar Ethernet"
 	depends on 85xx || 83xx

drivers/net/Makefile

@@ -51,6 +51,7 @@ obj-$(CONFIG_NS83820) += ns83820.o
 obj-$(CONFIG_STNIC) += stnic.o 8390.o
 obj-$(CONFIG_FEALNX) += fealnx.o
 obj-$(CONFIG_TIGON3) += tg3.o
+obj-$(CONFIG_BNX2) += bnx2.o
 obj-$(CONFIG_TC35815) += tc35815.o
 obj-$(CONFIG_SK98LIN) += sk98lin/
 obj-$(CONFIG_SKFP) += skfp/

drivers/net/bonding/bond_main.c

@@ -3037,7 +3037,7 @@ static void bond_activebackup_arp_mon(struct net_device *bond_dev)
 			bond_set_slave_inactive_flags(bond->current_arp_slave);
 
 			/* search for next candidate */
-			bond_for_each_slave_from(bond, slave, i, bond->current_arp_slave) {
+			bond_for_each_slave_from(bond, slave, i, bond->current_arp_slave->next) {
 				if (IS_UP(slave->dev)) {
 					slave->link = BOND_LINK_BACK;
 					bond_set_slave_active_flags(slave);

include/linux/if_tr.h

@@ -36,8 +36,8 @@ struct trh_hdr {
 	__u8  fc;			/* frame control field */
 	__u8  daddr[TR_ALEN];		/* destination address */
 	__u8  saddr[TR_ALEN];		/* source address */
-	__u16 rcf;			/* route control field */
-	__u16 rseg[8];			/* routing registers */
+	__be16 rcf;			/* route control field */
+	__be16 rseg[8];			/* routing registers */
 };
 
 #ifdef __KERNEL__
@@ -55,7 +55,7 @@ struct trllc {
 	__u8  ssap;			/* source SAP */
 	__u8  llc;			/* LLC control field */
 	__u8  protid[3];		/* protocol id */
-	__u16 ethertype;		/* ether type field */
+	__be16 ethertype;		/* ether type field */
 };
 
 /* Token-Ring statistics collection data. */

include/linux/mii.h

@@ -65,9 +65,13 @@
 #define ADVERTISE_SLCT          0x001f  /* Selector bits               */
 #define ADVERTISE_CSMA          0x0001  /* Only selector supported     */
 #define ADVERTISE_10HALF        0x0020  /* Try for 10mbps half-duplex  */
+#define ADVERTISE_1000XFULL     0x0020  /* Try for 1000BASE-X full-duplex */
 #define ADVERTISE_10FULL        0x0040  /* Try for 10mbps full-duplex  */
+#define ADVERTISE_1000XHALF     0x0040  /* Try for 1000BASE-X half-duplex */
 #define ADVERTISE_100HALF       0x0080  /* Try for 100mbps half-duplex */
+#define ADVERTISE_1000XPAUSE    0x0080  /* Try for 1000BASE-X pause    */
 #define ADVERTISE_100FULL       0x0100  /* Try for 100mbps full-duplex */
+#define ADVERTISE_1000XPSE_ASYM 0x0100  /* Try for 1000BASE-X asym pause */
 #define ADVERTISE_100BASE4      0x0200  /* Try for 100mbps 4k packets  */
 #define ADVERTISE_PAUSE_CAP     0x0400  /* Try for pause               */
 #define ADVERTISE_PAUSE_ASYM    0x0800  /* Try for asymetric pause     */
@@ -84,9 +88,13 @@
 /* Link partner ability register. */
 #define LPA_SLCT                0x001f  /* Same as advertise selector  */
 #define LPA_10HALF              0x0020  /* Can do 10mbps half-duplex   */
+#define LPA_1000XFULL           0x0020  /* Can do 1000BASE-X full-duplex */
 #define LPA_10FULL              0x0040  /* Can do 10mbps full-duplex   */
+#define LPA_1000XHALF           0x0040  /* Can do 1000BASE-X half-duplex */
 #define LPA_100HALF             0x0080  /* Can do 100mbps half-duplex  */
+#define LPA_1000XPAUSE          0x0080  /* Can do 1000BASE-X pause     */
 #define LPA_100FULL             0x0100  /* Can do 100mbps full-duplex  */
+#define LPA_1000XPAUSE_ASYM     0x0100  /* Can do 1000BASE-X pause asym*/
 #define LPA_100BASE4            0x0200  /* Can do 100mbps 4k packets   */
 #define LPA_PAUSE_CAP           0x0400  /* Can pause                   */
 #define LPA_PAUSE_ASYM          0x0800  /* Can pause asymetrically     */

include/linux/pci_ids.h

@@ -2071,6 +2071,7 @@
 #define PCI_DEVICE_ID_TIGON3_5703	0x1647
 #define PCI_DEVICE_ID_TIGON3_5704	0x1648
 #define PCI_DEVICE_ID_TIGON3_5704S_2	0x1649
+#define PCI_DEVICE_ID_NX2_5706		0x164a
 #define PCI_DEVICE_ID_TIGON3_5702FE	0x164d
 #define PCI_DEVICE_ID_TIGON3_5705	0x1653
 #define PCI_DEVICE_ID_TIGON3_5705_2	0x1654
@@ -2090,6 +2091,7 @@
 #define PCI_DEVICE_ID_TIGON3_5702X	0x16a6
 #define PCI_DEVICE_ID_TIGON3_5703X	0x16a7
 #define PCI_DEVICE_ID_TIGON3_5704S	0x16a8
+#define PCI_DEVICE_ID_NX2_5706S		0x16aa
 #define PCI_DEVICE_ID_TIGON3_5702A3	0x16c6
 #define PCI_DEVICE_ID_TIGON3_5703A3	0x16c7
 #define PCI_DEVICE_ID_TIGON3_5781	0x16dd

include/linux/pkt_sched.h

@@ -427,6 +427,7 @@ enum
 	TCA_NETEM_UNSPEC,
 	TCA_NETEM_CORR,
 	TCA_NETEM_DELAY_DIST,
+	TCA_NETEM_REORDER,
 	__TCA_NETEM_MAX,
 };
 
@@ -437,7 +438,7 @@ struct tc_netem_qopt
 	__u32	latency;	/* added delay (us) */
 	__u32   limit;		/* fifo limit (packets) */
 	__u32	loss;		/* random packet loss (0=none ~0=100%) */
-	__u32	gap;		/* re-ordering gap (0 for delay all) */
+	__u32	gap;		/* re-ordering gap (0 for none) */
 	__u32   duplicate;	/* random packet dup  (0=none ~0=100%) */
 	__u32	jitter;		/* random jitter in latency (us) */
 };
@@ -449,6 +450,12 @@ struct tc_netem_corr
 	__u32	dup_corr;	/* duplicate correlation  */
 };
 
+struct tc_netem_reorder
+{
+	__u32	probability;
+	__u32	correlation;
+};
+
 #define NETEM_DIST_SCALE	8192
 
 #endif

include/net/xfrm.h

@@ -515,6 +515,8 @@ struct xfrm_dst
 	struct dst_entry *route;
 	u32 route_mtu_cached;
 	u32 child_mtu_cached;
+	u32 route_cookie;
+	u32 path_cookie;
 };
 
 static inline void xfrm_dst_destroy(struct xfrm_dst *xdst)

net/802/tr.c

@@ -47,12 +47,12 @@ static void rif_check_expire(unsigned long dummy);
  *	Each RIF entry we learn is kept this way
  */
  
-struct rif_cache_s {	
+struct rif_cache {
 	unsigned char addr[TR_ALEN];
 	int iface;
-	__u16 rcf;
-	__u16 rseg[8];
-	struct rif_cache_s *next;
+	__be16 rcf;
+	__be16 rseg[8];
+	struct rif_cache *next;
 	unsigned long last_used;
 	unsigned char local_ring;
 };
@@ -64,7 +64,7 @@ struct rif_cache_s {
  *	up a lot.
  */
  
-static struct rif_cache_s *rif_table[RIF_TABLE_SIZE];
+static struct rif_cache *rif_table[RIF_TABLE_SIZE];
 
 static DEFINE_SPINLOCK(rif_lock);
 
@@ -249,7 +249,7 @@ void tr_source_route(struct sk_buff *skb,struct trh_hdr *trh,struct net_device *
 {
 	int slack;
 	unsigned int hash;
-	struct rif_cache_s *entry;
+	struct rif_cache *entry;
 	unsigned char *olddata;
 	static const unsigned char mcast_func_addr[] 
 		= {0xC0,0x00,0x00,0x04,0x00,0x00};
@@ -337,7 +337,7 @@ printk("source routing for %02X:%02X:%02X:%02X:%02X:%02X\n",trh->daddr[0],
 static void tr_add_rif_info(struct trh_hdr *trh, struct net_device *dev)
 {
 	unsigned int hash, rii_p = 0;
-	struct rif_cache_s *entry;
+	struct rif_cache *entry;
 
 
 	spin_lock_bh(&rif_lock);
@@ -373,7 +373,7 @@ printk("adding rif_entry: addr:%02X:%02X:%02X:%02X:%02X:%02X rcf:%04X\n",
 		 *	FIXME: We ought to keep some kind of cache size
 		 *	limiting and adjust the timers to suit.
 		 */
-		entry=kmalloc(sizeof(struct rif_cache_s),GFP_ATOMIC);
+		entry=kmalloc(sizeof(struct rif_cache),GFP_ATOMIC);
 
 		if(!entry) 
 		{
@@ -435,7 +435,7 @@ static void rif_check_expire(unsigned long dummy)
 	spin_lock_bh(&rif_lock);
 	
 	for(i =0; i < RIF_TABLE_SIZE; i++) {
-		struct rif_cache_s *entry, **pentry;
+		struct rif_cache *entry, **pentry;
 		
 		pentry = rif_table+i;
 		while((entry=*pentry) != NULL) {
@@ -467,10 +467,10 @@ static void rif_check_expire(unsigned long dummy)
  
 #ifdef CONFIG_PROC_FS
 
-static struct rif_cache_s *rif_get_idx(loff_t pos)
+static struct rif_cache *rif_get_idx(loff_t pos)
 {
 	int i;
-	struct rif_cache_s *entry;
+	struct rif_cache *entry;
 	loff_t off = 0;
 
 	for(i = 0; i < RIF_TABLE_SIZE; i++) 
@@ -493,7 +493,7 @@ static void *rif_seq_start(struct seq_file *seq, loff_t *pos)
 static void *rif_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	int i;
-	struct rif_cache_s *ent = v;
+	struct rif_cache *ent = v;
 
 	++*pos;
 
@@ -522,7 +522,7 @@ static void rif_seq_stop(struct seq_file *seq, void *v)
 static int rif_seq_show(struct seq_file *seq, void *v)
 {
 	int j, rcf_len, segment, brdgnmb;
-	struct rif_cache_s *entry = v;
+	struct rif_cache *entry = v;
 
 	if (v == SEQ_START_TOKEN)
 		seq_puts(seq,

net/ipv6/xfrm6_policy.c

@@ -113,6 +113,8 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
 
 		xdst = (struct xfrm_dst *)dst1;
 		xdst->route = &rt->u.dst;
+		if (rt->rt6i_node)
+			xdst->route_cookie = rt->rt6i_node->fn_sernum;
 
 		dst1->next = dst_prev;
 		dst_prev = dst1;
@@ -137,6 +139,8 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int
 
 	dst_prev->child = &rt->u.dst;
 	dst->path = &rt->u.dst;
+	if (rt->rt6i_node)
+		((struct xfrm_dst *)dst)->path_cookie = rt->rt6i_node->fn_sernum;
 
 	*dst_p = dst;
 	dst = dst_prev;

net/sched/sch_netem.c

@@ -53,7 +53,6 @@
 
 struct netem_sched_data {
 	struct Qdisc	*qdisc;
-	struct sk_buff_head delayed;
 	struct timer_list timer;
 
 	u32 latency;
@@ -63,11 +62,12 @@ struct netem_sched_data {
 	u32 gap;
 	u32 jitter;
 	u32 duplicate;
+	u32 reorder;
 
 	struct crndstate {
 		unsigned long last;
 		unsigned long rho;
-	} delay_cor, loss_cor, dup_cor;
+	} delay_cor, loss_cor, dup_cor, reorder_cor;
 
 	struct disttable {
 		u32  size;
@@ -137,122 +137,68 @@ static long tabledist(unsigned long mu, long sigma,
 	return  x / NETEM_DIST_SCALE + (sigma / NETEM_DIST_SCALE) * t + mu;
 }
 
-/* Put skb in the private delayed queue. */
-static int netem_delay(struct Qdisc *sch, struct sk_buff *skb)
-{
-	struct netem_sched_data *q = qdisc_priv(sch);
-	psched_tdiff_t td;
-	psched_time_t now;
-	
-	PSCHED_GET_TIME(now);
-	td = tabledist(q->latency, q->jitter, &q->delay_cor, q->delay_dist);
-	
-	/* Always queue at tail to keep packets in order */
-	if (likely(q->delayed.qlen < q->limit)) {
-		struct netem_skb_cb *cb = (struct netem_skb_cb *)skb->cb;
-	
-		PSCHED_TADD2(now, td, cb->time_to_send);
-
-		pr_debug("netem_delay: skb=%p now=%llu tosend=%llu\n", skb, 
-			 now, cb->time_to_send);
-	
-		__skb_queue_tail(&q->delayed, skb);
-		return NET_XMIT_SUCCESS;
-	}
-
-	pr_debug("netem_delay: queue over limit %d\n", q->limit);
-	sch->qstats.overlimits++;
-	kfree_skb(skb);
-	return NET_XMIT_DROP;
-}
-
 /*
- *  Move a packet that is ready to send from the delay holding
- *  list to the underlying qdisc.
+ * Insert one skb into qdisc.
+ * Note: parent depends on return value to account for queue length.
+ * 	NET_XMIT_DROP: queue length didn't change.
+ *      NET_XMIT_SUCCESS: one skb was queued.
  */
-static int netem_run(struct Qdisc *sch)
-{
-	struct netem_sched_data *q = qdisc_priv(sch);
-	struct sk_buff *skb;
-	psched_time_t now;
-
-	PSCHED_GET_TIME(now);
-
-	skb = skb_peek(&q->delayed);
-	if (skb) {
-		const struct netem_skb_cb *cb
-			= (const struct netem_skb_cb *)skb->cb;
-		long delay 
-			= PSCHED_US2JIFFIE(PSCHED_TDIFF(cb->time_to_send, now));
-		pr_debug("netem_run: skb=%p delay=%ld\n", skb, delay);
-
-		/* if more time remaining? */
-		if (delay > 0) {
-			mod_timer(&q->timer, jiffies + delay);
-			return 1;
-		}
-
-		__skb_unlink(skb, &q->delayed);
-		
-		if (q->qdisc->enqueue(skb, q->qdisc)) {
-			sch->q.qlen--;
-			sch->qstats.drops++;
-		} 
-	}
-
-	return 0;
-}
-
 static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
 	struct netem_sched_data *q = qdisc_priv(sch);
+	struct netem_skb_cb *cb = (struct netem_skb_cb *)skb->cb;
+	struct sk_buff *skb2;
 	int ret;
+	int count = 1;
 
 	pr_debug("netem_enqueue skb=%p\n", skb);
 
+	/* Random duplication */
+	if (q->duplicate && q->duplicate >= get_crandom(&q->dup_cor))
+		++count;
+
 	/* Random packet drop 0 => none, ~0 => all */
-	if (q->loss && q->loss >= get_crandom(&q->loss_cor)) {
-		pr_debug("netem_enqueue: random loss\n");
+	if (q->loss && q->loss >= get_crandom(&q->loss_cor))
+		--count;
+
+	if (count == 0) {
 		sch->qstats.drops++;
 		kfree_skb(skb);
-		return 0;	/* lie about loss so TCP doesn't know */
+		return NET_XMIT_DROP;
 	}
 
-	/* Random duplication */
-	if (q->duplicate && q->duplicate >= get_crandom(&q->dup_cor)) {
-		struct sk_buff *skb2;
-
-		skb2 = skb_clone(skb, GFP_ATOMIC);
-		if (skb2 && netem_delay(sch, skb2) == NET_XMIT_SUCCESS) {
-			struct Qdisc *qp;
-
-			/* Since one packet can generate two packets in the
-			 * queue, the parent's qlen accounting gets confused,
-			 * so fix it.
+	/*
+	 * If we need to duplicate packet, then re-insert at top of the
+	 * qdisc tree, since parent queuer expects that only one
+	 * skb will be queued.
 	 */
-			qp = qdisc_lookup(sch->dev, TC_H_MAJ(sch->parent));
-			if (qp)
-				qp->q.qlen++;
+	if (count > 1 && (skb2 = skb_clone(skb, GFP_ATOMIC)) != NULL) {
+		struct Qdisc *rootq = sch->dev->qdisc;
+		u32 dupsave = q->duplicate; /* prevent duplicating a dup... */
+		q->duplicate = 0;
 
-			sch->q.qlen++;
-			sch->bstats.bytes += skb2->len;
-			sch->bstats.packets++;
-		} else
-			sch->qstats.drops++;
+		rootq->enqueue(skb2, rootq);
+		q->duplicate = dupsave;
 	}
 
-	/* If doing simple delay then gap == 0 so all packets
-	 * go into the delayed holding queue
-	 * otherwise if doing out of order only "1 out of gap"
-	 * packets will be delayed.
-	 */
-	if (q->counter < q->gap) {
+	if (q->gap == 0 		/* not doing reordering */
+	    || q->counter < q->gap 	/* inside last reordering gap */
+	    || q->reorder < get_crandom(&q->reorder_cor)) {
+		psched_time_t now;
+		PSCHED_GET_TIME(now);
+		PSCHED_TADD2(now, tabledist(q->latency, q->jitter, 
+					    &q->delay_cor, q->delay_dist),
+			     cb->time_to_send);
 		++q->counter;
 		ret = q->qdisc->enqueue(skb, q->qdisc);
 	} else {
+		/* 
+		 * Do re-ordering by putting one out of N packets at the front
+		 * of the queue.
+		 */
+		PSCHED_GET_TIME(cb->time_to_send);
 		q->counter = 0;
-		ret = netem_delay(sch, skb);
-		netem_run(sch);
+		ret = q->qdisc->ops->requeue(skb, q->qdisc);
 	}
 
 	if (likely(ret == NET_XMIT_SUCCESS)) {
@@ -296,22 +242,33 @@ static struct sk_buff *netem_dequeue(struct Qdisc *sch)
 {
 	struct netem_sched_data *q = qdisc_priv(sch);
 	struct sk_buff *skb;
-	int pending;
-
-	pending = netem_run(sch);
 
 	skb = q->qdisc->dequeue(q->qdisc);
 	if (skb) {
+		const struct netem_skb_cb *cb
+			= (const struct netem_skb_cb *)skb->cb;
+		psched_time_t now;
+		long delay;
+
+		/* if more time remaining? */
+		PSCHED_GET_TIME(now);
+		delay = PSCHED_US2JIFFIE(PSCHED_TDIFF(cb->time_to_send, now));
+		pr_debug("netem_run: skb=%p delay=%ld\n", skb, delay);
+		if (delay <= 0) {
 			pr_debug("netem_dequeue: return skb=%p\n", skb);
 			sch->q.qlen--;
 			sch->flags &= ~TCQ_F_THROTTLED;
+			return skb;
 		}
-	else if (pending) {
-		pr_debug("netem_dequeue: throttling\n");
+
+		mod_timer(&q->timer, jiffies + delay);
 		sch->flags |= TCQ_F_THROTTLED;
+
+		if (q->qdisc->ops->requeue(skb, q->qdisc) != 0)
+			sch->qstats.drops++;
 	}
 
-	return skb;
+	return NULL;
 }
 
 static void netem_watchdog(unsigned long arg)
@@ -328,8 +285,6 @@ static void netem_reset(struct Qdisc *sch)
 	struct netem_sched_data *q = qdisc_priv(sch);
 
 	qdisc_reset(q->qdisc);
-	skb_queue_purge(&q->delayed);
-
 	sch->q.qlen = 0;
 	sch->flags &= ~TCQ_F_THROTTLED;
 	del_timer_sync(&q->timer);
@@ -397,6 +352,19 @@ static int get_correlation(struct Qdisc *sch, const struct rtattr *attr)
 	return 0;
 }
 
+static int get_reorder(struct Qdisc *sch, const struct rtattr *attr)
+{
+	struct netem_sched_data *q = qdisc_priv(sch);
+	const struct tc_netem_reorder *r = RTA_DATA(attr);
+
+	if (RTA_PAYLOAD(attr) != sizeof(*r))
+		return -EINVAL;
+
+	q->reorder = r->probability;
+	init_crandom(&q->reorder_cor, r->correlation);
+	return 0;
+}
+
 static int netem_change(struct Qdisc *sch, struct rtattr *opt)
 {
 	struct netem_sched_data *q = qdisc_priv(sch);
@@ -417,9 +385,15 @@ static int netem_change(struct Qdisc *sch, struct rtattr *opt)
 	q->jitter = qopt->jitter;
 	q->limit = qopt->limit;
 	q->gap = qopt->gap;
+	q->counter = 0;
 	q->loss = qopt->loss;
 	q->duplicate = qopt->duplicate;
 
+	/* for compatiablity with earlier versions.
+	 * if gap is set, need to assume 100% probablity
+	 */
+	q->reorder = ~0;
+
 	/* Handle nested options after initial queue options.
 	 * Should have put all options in nested format but too late now.
 	 */ 
@@ -441,6 +415,11 @@ static int netem_change(struct Qdisc *sch, struct rtattr *opt)
 			if (ret)
 				return ret;
 		}
+		if (tb[TCA_NETEM_REORDER-1]) {
+			ret = get_reorder(sch, tb[TCA_NETEM_REORDER-1]);
+			if (ret)
+				return ret;
+		}
 	}
 
 
@@ -455,11 +434,9 @@ static int netem_init(struct Qdisc *sch, struct rtattr *opt)
 	if (!opt)
 		return -EINVAL;
 
-	skb_queue_head_init(&q->delayed);
 	init_timer(&q->timer);
 	q->timer.function = netem_watchdog;
 	q->timer.data = (unsigned long) sch;
-	q->counter = 0;
 
 	q->qdisc = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops);
 	if (!q->qdisc) {
@@ -491,6 +468,7 @@ static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
 	struct rtattr *rta = (struct rtattr *) b;
 	struct tc_netem_qopt qopt;
 	struct tc_netem_corr cor;
+	struct tc_netem_reorder reorder;
 
 	qopt.latency = q->latency;
 	qopt.jitter = q->jitter;
@@ -504,6 +482,11 @@ static int netem_dump(struct Qdisc *sch, struct sk_buff *skb)
 	cor.loss_corr = q->loss_cor.rho;
 	cor.dup_corr = q->dup_cor.rho;
 	RTA_PUT(skb, TCA_NETEM_CORR, sizeof(cor), &cor);
+
+	reorder.probability = q->reorder;
+	reorder.correlation = q->reorder_cor.rho;
+	RTA_PUT(skb, TCA_NETEM_REORDER, sizeof(reorder), &reorder);
+
 	rta->rta_len = skb->tail - b;
 
 	return skb->len;

net/xfrm/xfrm_policy.c

@@ -1136,7 +1136,7 @@ int xfrm_bundle_ok(struct xfrm_dst *first, struct flowi *fl, int family)
 	struct xfrm_dst *last;
 	u32 mtu;
 
-	if (!dst_check(dst->path, 0) ||
+	if (!dst_check(dst->path, ((struct xfrm_dst *)dst)->path_cookie) ||
 	    (dst->dev && !netif_running(dst->dev)))
 		return 0;
 
@@ -1156,7 +1156,7 @@ int xfrm_bundle_ok(struct xfrm_dst *first, struct flowi *fl, int family)
 			xdst->child_mtu_cached = mtu;
 		}
 
-		if (!dst_check(xdst->route, 0))
+		if (!dst_check(xdst->route, xdst->route_cookie))
 			return 0;
 		mtu = dst_mtu(xdst->route);
 		if (xdst->route_mtu_cached != mtu) {