Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [ATM]: fix broken uses of NIPQUAD in net/atm
  [SCTP]: sctp_unpack_cookie() fix
  [SCTP]: Fix unintentional change to SCTP_ASSERT when !SCTP_DEBUG
  [NET]: Prevent multiple qdisc runs
  [CONNECTOR]: Initialize subsystem earlier.
  [NETFILTER]: xt_sctp: fix endless loop caused by 0 chunk length

drivers/connector/connector.c

@@ -308,6 +308,9 @@ int cn_add_callback(struct cb_id *id, char *name, void (*callback)(void *))
 	int err;
 	struct cn_dev *dev = &cdev;
 
+	if (!cn_already_initialized)
+		return -EAGAIN;
+
 	err = cn_queue_add_callback(dev->cbdev, name, id, callback);
 	if (err)
 		return err;
@@ -435,7 +438,7 @@ static void cn_callback(void *data)
 	mutex_unlock(&notify_lock);
 }
 
-static int __init cn_init(void)
+static int __devinit cn_init(void)
 {
 	struct cn_dev *dev = &cdev;
 	int err;
@@ -457,20 +460,21 @@ static int __init cn_init(void)
 		return -EINVAL;
 	}
 	
+	cn_already_initialized = 1;
+
 	err = cn_add_callback(&dev->id, "connector", &cn_callback);
 	if (err) {
+		cn_already_initialized = 0;
 		cn_queue_free_dev(dev->cbdev);
 		if (dev->nls->sk_socket)
 			sock_release(dev->nls->sk_socket);
 		return -EINVAL;
 	}
 
-	cn_already_initialized = 1;
-
 	return 0;
 }
 
-static void __exit cn_fini(void)
+static void __devexit cn_fini(void)
 {
 	struct cn_dev *dev = &cdev;
 
@@ -482,7 +486,7 @@ static void __exit cn_fini(void)
 		sock_release(dev->nls->sk_socket);
 }
 
-module_init(cn_init);
+subsys_initcall(cn_init);
 module_exit(cn_fini);
 
 EXPORT_SYMBOL_GPL(cn_add_callback);

include/linux/netdevice.h

@@ -232,6 +232,7 @@ enum netdev_state_t
 	__LINK_STATE_RX_SCHED,
 	__LINK_STATE_LINKWATCH_PENDING,
 	__LINK_STATE_DORMANT,
+	__LINK_STATE_QDISC_RUNNING,
 };
 
 

include/net/pkt_sched.h

@@ -218,12 +218,13 @@ extern struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
 		struct rtattr *tab);
 extern void qdisc_put_rtab(struct qdisc_rate_table *tab);
 
-extern int qdisc_restart(struct net_device *dev);
+extern void __qdisc_run(struct net_device *dev);
 
 static inline void qdisc_run(struct net_device *dev)
 {
-	while (!netif_queue_stopped(dev) && qdisc_restart(dev) < 0)
-		/* NOTHING */;
+	if (!netif_queue_stopped(dev) &&
+	    !test_and_set_bit(__LINK_STATE_QDISC_RUNNING, &dev->state))
+		__qdisc_run(dev);
 }
 
 extern int tc_classify(struct sk_buff *skb, struct tcf_proto *tp,

include/net/sctp/sctp.h

@@ -254,7 +254,7 @@ extern int sctp_debug_flag;
 #define SCTP_DEBUG_PRINTK_IPADDR(whatever...)
 #define SCTP_ENABLE_DEBUG
 #define SCTP_DISABLE_DEBUG
-#define SCTP_ASSERT(expr, str, func) BUG_ON(!(expr))
+#define SCTP_ASSERT(expr, str, func)
 
 #endif /* SCTP_DEBUG */
 

net/atm/mpc.c

@@ -229,20 +229,15 @@ int atm_mpoa_delete_qos(struct atm_mpoa_qos *entry)
 /* this is buggered - we need locking for qos_head */
 void atm_mpoa_disp_qos(struct seq_file *m)
 {
-	unsigned char *ip;
-	char ipaddr[16];
 	struct atm_mpoa_qos *qos;
 
 	qos = qos_head;
 	seq_printf(m, "QoS entries for shortcuts:\n");
 	seq_printf(m, "IP address\n  TX:max_pcr pcr     min_pcr max_cdv max_sdu\n  RX:max_pcr pcr     min_pcr max_cdv max_sdu\n");
 
-	ipaddr[sizeof(ipaddr)-1] = '\0';
 	while (qos != NULL) {
-		ip = (unsigned char *)&qos->ipaddr;
-		sprintf(ipaddr, "%u.%u.%u.%u", NIPQUAD(ip));
 		seq_printf(m, "%u.%u.%u.%u\n     %-7d %-7d %-7d %-7d %-7d\n     %-7d %-7d %-7d %-7d %-7d\n",
-				NIPQUAD(ipaddr),
+				NIPQUAD(qos->ipaddr),
 				qos->qos.txtp.max_pcr, qos->qos.txtp.pcr, qos->qos.txtp.min_pcr, qos->qos.txtp.max_cdv, qos->qos.txtp.max_sdu,
 				qos->qos.rxtp.max_pcr, qos->qos.rxtp.pcr, qos->qos.rxtp.min_pcr, qos->qos.rxtp.max_cdv, qos->qos.rxtp.max_sdu);
 		qos = qos->next;
@@ -1083,7 +1078,6 @@ static void MPOA_trigger_rcvd(struct k_message *msg, struct mpoa_client *mpc)
 static void check_qos_and_open_shortcut(struct k_message *msg, struct mpoa_client *client, in_cache_entry *entry)
 {
 	uint32_t dst_ip = msg->content.in_info.in_dst_ip;
-	unsigned char *ip __attribute__ ((unused)) = (unsigned char *)&dst_ip;
 	struct atm_mpoa_qos *qos = atm_mpoa_search_qos(dst_ip);
 	eg_cache_entry *eg_entry = client->eg_ops->get_by_src_ip(dst_ip, client);
 
@@ -1097,7 +1091,7 @@ static void check_qos_and_open_shortcut(struct k_message *msg, struct mpoa_clien
 				    entry->shortcut = eg_entry->shortcut;
 		}
 	 	if(entry->shortcut){
-			dprintk("mpoa: (%s) using egress SVC to reach %u.%u.%u.%u\n",client->dev->name, NIPQUAD(ip));
+			dprintk("mpoa: (%s) using egress SVC to reach %u.%u.%u.%u\n",client->dev->name, NIPQUAD(dst_ip));
 			client->eg_ops->put(eg_entry);
 			return;
 		}
@@ -1123,8 +1117,7 @@ static void MPOA_res_reply_rcvd(struct k_message *msg, struct mpoa_client *mpc)
 
 	uint32_t dst_ip = msg->content.in_info.in_dst_ip;
 	in_cache_entry *entry = mpc->in_ops->get(dst_ip, mpc);
-	ip = (unsigned char *)&dst_ip;
-	dprintk("mpoa: (%s) MPOA_res_reply_rcvd: ip %u.%u.%u.%u\n", mpc->dev->name, NIPQUAD(ip));
+	dprintk("mpoa: (%s) MPOA_res_reply_rcvd: ip %u.%u.%u.%u\n", mpc->dev->name, NIPQUAD(dst_ip));
 	ddprintk("mpoa: (%s) MPOA_res_reply_rcvd() entry = %p", mpc->dev->name, entry);
 	if(entry == NULL){
 		printk("\nmpoa: (%s) ARGH, received res. reply for an entry that doesn't exist.\n", mpc->dev->name);

net/atm/mpoa_caches.c

@@ -223,7 +223,6 @@ static void in_cache_remove_entry(in_cache_entry *entry,
    but an easy one... */
 static void clear_count_and_expired(struct mpoa_client *client)
 {
-	unsigned char *ip;
 	in_cache_entry *entry, *next_entry;
 	struct timeval now;
 
@@ -236,8 +235,7 @@ static void clear_count_and_expired(struct mpoa_client *client)
 		next_entry = entry->next;
 		if((now.tv_sec - entry->tv.tv_sec)
 		   > entry->ctrl_info.holding_time){
-			ip = (unsigned char*)&entry->ctrl_info.in_dst_ip;
-			dprintk("mpoa: mpoa_caches.c: holding time expired, ip = %u.%u.%u.%u\n", NIPQUAD(ip));
+			dprintk("mpoa: mpoa_caches.c: holding time expired, ip = %u.%u.%u.%u\n", NIPQUAD(entry->ctrl_info.in_dst_ip));
 			client->in_ops->remove_entry(entry, client);
 		}
 		entry = next_entry;
@@ -455,7 +453,6 @@ static void eg_cache_remove_entry(eg_cache_entry *entry,
 
 static eg_cache_entry *eg_cache_add_entry(struct k_message *msg, struct mpoa_client *client)
 {
-	unsigned char *ip;
 	eg_cache_entry *entry = kmalloc(sizeof(eg_cache_entry), GFP_KERNEL);
 
 	if (entry == NULL) {
@@ -463,8 +460,7 @@ static eg_cache_entry *eg_cache_add_entry(struct k_message *msg, struct mpoa_cli
 		return NULL;
 	}
 
-	ip = (unsigned char *)&msg->content.eg_info.eg_dst_ip;
-	dprintk("mpoa: mpoa_caches.c: adding an egress entry, ip = %u.%u.%u.%u, this should be our IP\n", NIPQUAD(ip));
+	dprintk("mpoa: mpoa_caches.c: adding an egress entry, ip = %u.%u.%u.%u, this should be our IP\n", NIPQUAD(msg->content.eg_info.eg_dst_ip));
 	memset(entry, 0, sizeof(eg_cache_entry));
 
 	atomic_set(&entry->use, 1);
@@ -481,8 +477,8 @@ static eg_cache_entry *eg_cache_add_entry(struct k_message *msg, struct mpoa_cli
 	do_gettimeofday(&(entry->tv));
 	entry->entry_state = EGRESS_RESOLVED;
 	dprintk("mpoa: mpoa_caches.c: new_eg_cache_entry cache_id %lu\n", ntohl(entry->ctrl_info.cache_id));
-	ip = (unsigned char *)&entry->ctrl_info.mps_ip;
-	dprintk("mpoa: mpoa_caches.c: mps_ip = %u.%u.%u.%u\n", NIPQUAD(ip));
+	dprintk("mpoa: mpoa_caches.c: mps_ip = %u.%u.%u.%u\n",
+		NIPQUAD(entry->ctrl_info.mps_ip));
 	atomic_inc(&entry->use);
 
 	write_unlock_irq(&client->egress_lock);

net/netfilter/xt_sctp.c

@@ -62,7 +62,7 @@ match_packet(const struct sk_buff *skb,
 
 	do {
 		sch = skb_header_pointer(skb, offset, sizeof(_sch), &_sch);
-		if (sch == NULL) {
+		if (sch == NULL || sch->length == 0) {
 			duprintf("Dropping invalid SCTP packet.\n");
 			*hotdrop = 1;
 			return 0;

net/sched/sch_generic.c

@@ -90,7 +90,7 @@ void qdisc_unlock_tree(struct net_device *dev)
    NOTE: Called under dev->queue_lock with locally disabled BH.
 */
 
-int qdisc_restart(struct net_device *dev)
+static inline int qdisc_restart(struct net_device *dev)
 {
 	struct Qdisc *q = dev->qdisc;
 	struct sk_buff *skb;
@@ -179,6 +179,14 @@ requeue:
 	return q->q.qlen;
 }
 
+void __qdisc_run(struct net_device *dev)
+{
+	while (qdisc_restart(dev) < 0 && !netif_queue_stopped(dev))
+		/* NOTHING */;
+
+	clear_bit(__LINK_STATE_QDISC_RUNNING, &dev->state);
+}
+
 static void dev_watchdog(unsigned long arg)
 {
 	struct net_device *dev = (struct net_device *)arg;
@@ -620,6 +628,5 @@ EXPORT_SYMBOL(qdisc_create_dflt);
 EXPORT_SYMBOL(qdisc_alloc);
 EXPORT_SYMBOL(qdisc_destroy);
 EXPORT_SYMBOL(qdisc_reset);
-EXPORT_SYMBOL(qdisc_restart);
 EXPORT_SYMBOL(qdisc_lock_tree);
 EXPORT_SYMBOL(qdisc_unlock_tree);

net/sctp/sm_make_chunk.c

@@ -1402,14 +1402,14 @@ struct sctp_association *sctp_unpack_cookie(
 	sg.length = bodysize;
 	key = (char *)ep->secret_key[ep->current_key];
 
-	memset(digest, 0x00, sizeof(digest));
+	memset(digest, 0x00, SCTP_SIGNATURE_SIZE);
 	sctp_crypto_hmac(sctp_sk(ep->base.sk)->hmac, key, &keylen, &sg,
 			 1, digest);
 
 	if (memcmp(digest, cookie->signature, SCTP_SIGNATURE_SIZE)) {
 		/* Try the previous key. */
 		key = (char *)ep->secret_key[ep->last_key];
-		memset(digest, 0x00, sizeof(digest));
+		memset(digest, 0x00, SCTP_SIGNATURE_SIZE);
 		sctp_crypto_hmac(sctp_sk(ep->base.sk)->hmac, key, &keylen,
 				 &sg, 1, digest);