X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fatm%2Fclip.c;h=6f8223ebf551546d8be39503ba4c6489adeb0348;hb=d5545fa0056ff2982f8a6419bd9a6ba2674deefd;hp=876b77f1474521b8e9a77a425cac5e7e53edb2cb;hpb=d6454706c382ab74e2ecad7803c434cc6bd30343;p=linux-2.6

diff --git a/net/atm/clip.c b/net/atm/clip.c
index 876b77f147..6f8223ebf5 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -40,14 +40,6 @@
 #include "resources.h"
 #include <net/atmclip.h>
 
-
-#if 0
-#define DPRINTK(format,args...) printk(format,##args)
-#else
-#define DPRINTK(format,args...)
-#endif
-
-
 static struct net_device *clip_devs;
 static struct atm_vcc *atmarpd;
 static struct neigh_table clip_tbl;
@@ -59,7 +51,7 @@ static int to_atmarpd(enum atmarp_ctrl_type type, int itf, __be32 ip)
 	struct atmarp_ctrl *ctrl;
 	struct sk_buff *skb;
 
-	DPRINTK("to_atmarpd(%d)\n", type);
+	pr_debug("to_atmarpd(%d)\n", type);
 	if (!atmarpd)
 		return -EUNATCH;
 	skb = alloc_skb(sizeof(struct atmarp_ctrl),GFP_ATOMIC);
@@ -79,7 +71,7 @@ static int to_atmarpd(enum atmarp_ctrl_type type, int itf, __be32 ip)
 
 static void link_vcc(struct clip_vcc *clip_vcc, struct atmarp_entry *entry)
 {
-	DPRINTK("link_vcc %p to entry %p (neigh %p)\n", clip_vcc, entry,
+	pr_debug("link_vcc %p to entry %p (neigh %p)\n", clip_vcc, entry,
 		entry->neigh);
 	clip_vcc->entry = entry;
 	clip_vcc->xoff = 0;	/* @@@ may overrun buffer by one packet */
@@ -134,7 +126,7 @@ static int neigh_check_cb(struct neighbour *n)
 		unsigned long exp = cv->last_use + cv->idle_timeout;
 
 		if (cv->idle_timeout && time_after(jiffies, exp)) {
-			DPRINTK("releasing vcc %p->%p of entry %p\n",
+			pr_debug("releasing vcc %p->%p of entry %p\n",
 				cv, cv->vcc, entry);
 			vcc_release_async(cv->vcc, -ETIMEDOUT);
 		}
@@ -146,7 +138,7 @@ static int neigh_check_cb(struct neighbour *n)
 	if (atomic_read(&n->refcnt) > 1) {
 		struct sk_buff *skb;
 
-		DPRINTK("destruction postponed with ref %d\n",
+		pr_debug("destruction postponed with ref %d\n",
 			atomic_read(&n->refcnt));
 
 		while ((skb = skb_dequeue(&n->arp_queue)) != NULL)
@@ -155,7 +147,7 @@ static int neigh_check_cb(struct neighbour *n)
 		return 0;
 	}
 
-	DPRINTK("expired neigh %p\n", n);
+	pr_debug("expired neigh %p\n", n);
 	return 1;
 }
 
@@ -171,14 +163,14 @@ static int clip_arp_rcv(struct sk_buff *skb)
 {
 	struct atm_vcc *vcc;
 
-	DPRINTK("clip_arp_rcv\n");
+	pr_debug("clip_arp_rcv\n");
 	vcc = ATM_SKB(skb)->vcc;
 	if (!vcc || !atm_charge(vcc, skb->truesize)) {
 		dev_kfree_skb_any(skb);
 		return 0;
 	}
-	DPRINTK("pushing to %p\n", vcc);
-	DPRINTK("using %p\n", CLIP_VCC(vcc)->old_push);
+	pr_debug("pushing to %p\n", vcc);
+	pr_debug("using %p\n", CLIP_VCC(vcc)->old_push);
 	CLIP_VCC(vcc)->old_push(vcc, skb);
 	return 0;
 }
@@ -196,9 +188,9 @@ static void clip_push(struct atm_vcc *vcc, struct sk_buff *skb)
 {
 	struct clip_vcc *clip_vcc = CLIP_VCC(vcc);
 
-	DPRINTK("clip push\n");
+	pr_debug("clip push\n");
 	if (!skb) {
-		DPRINTK("removing VCC %p\n", clip_vcc);
+		pr_debug("removing VCC %p\n", clip_vcc);
 		if (clip_vcc->entry)
 			unlink_clip_vcc(clip_vcc);
 		clip_vcc->old_push(vcc, NULL);	/* pass on the bad news */
@@ -247,7 +239,7 @@ static void clip_pop(struct atm_vcc *vcc, struct sk_buff *skb)
 	int old;
 	unsigned long flags;
 
-	DPRINTK("clip_pop(vcc %p)\n", vcc);
+	pr_debug("clip_pop(vcc %p)\n", vcc);
 	clip_vcc->old_pop(vcc, skb);
 	/* skb->dev == NULL in outbound ARP packets */
 	if (!dev)
@@ -263,7 +255,7 @@ static void clip_pop(struct atm_vcc *vcc, struct sk_buff *skb)
 
 static void clip_neigh_solicit(struct neighbour *neigh, struct sk_buff *skb)
 {
-	DPRINTK("clip_neigh_solicit (neigh %p, skb %p)\n", neigh, skb);
+	pr_debug("clip_neigh_solicit (neigh %p, skb %p)\n", neigh, skb);
 	to_atmarpd(act_need, PRIV(neigh->dev)->number, NEIGH2ENTRY(neigh)->ip);
 }
 
@@ -292,8 +284,8 @@ static int clip_constructor(struct neighbour *neigh)
 	struct in_device *in_dev;
 	struct neigh_parms *parms;
 
-	DPRINTK("clip_constructor (neigh %p, entry %p)\n", neigh, entry);
-	neigh->type = inet_addr_type(entry->ip);
+	pr_debug("clip_constructor (neigh %p, entry %p)\n", neigh, entry);
+	neigh->type = inet_addr_type(&init_net, entry->ip);
 	if (neigh->type != RTN_UNICAST)
 		return -EINVAL;
 
@@ -376,7 +368,7 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	int old;
 	unsigned long flags;
 
-	DPRINTK("clip_start_xmit (skb %p)\n", skb);
+	pr_debug("clip_start_xmit (skb %p)\n", skb);
 	if (!skb->dst) {
 		printk(KERN_ERR "clip_start_xmit: skb->dst == NULL\n");
 		dev_kfree_skb(skb);
@@ -412,9 +404,9 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		}
 		return 0;
 	}
-	DPRINTK("neigh %p, vccs %p\n", entry, entry->vccs);
+	pr_debug("neigh %p, vccs %p\n", entry, entry->vccs);
 	ATM_SKB(skb)->vcc = vcc = entry->vccs->vcc;
-	DPRINTK("using neighbour %p, vcc %p\n", skb->dst->neighbour, vcc);
+	pr_debug("using neighbour %p, vcc %p\n", skb->dst->neighbour, vcc);
 	if (entry->vccs->encap) {
 		void *here;
 
@@ -425,7 +417,7 @@ static int clip_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
 	ATM_SKB(skb)->atm_options = vcc->atm_options;
 	entry->vccs->last_use = jiffies;
-	DPRINTK("atm_skb(%p)->vcc(%p)->dev(%p)\n", skb, vcc, vcc->dev);
+	pr_debug("atm_skb(%p)->vcc(%p)->dev(%p)\n", skb, vcc, vcc->dev);
 	old = xchg(&entry->vccs->xoff, 1);	/* assume XOFF ... */
 	if (old) {
 		printk(KERN_WARNING "clip_start_xmit: XOFF->XOFF transition\n");
@@ -468,7 +460,7 @@ static int clip_mkip(struct atm_vcc *vcc, int timeout)
 	clip_vcc = kmalloc(sizeof(struct clip_vcc), GFP_KERNEL);
 	if (!clip_vcc)
 		return -ENOMEM;
-	DPRINTK("mkip clip_vcc %p vcc %p\n", clip_vcc, vcc);
+	pr_debug("mkip clip_vcc %p vcc %p\n", clip_vcc, vcc);
 	clip_vcc->vcc = vcc;
 	vcc->user_back = clip_vcc;
 	set_bit(ATM_VF_IS_CLIP, &vcc->flags);
@@ -538,11 +530,11 @@ static int clip_setentry(struct atm_vcc *vcc, __be32 ip)
 			printk(KERN_ERR "hiding hidden ATMARP entry\n");
 			return 0;
 		}
-		DPRINTK("setentry: remove\n");
+		pr_debug("setentry: remove\n");
 		unlink_clip_vcc(clip_vcc);
 		return 0;
 	}
-	error = ip_route_output_key(&rt, &fl);
+	error = ip_route_output_key(&init_net, &rt, &fl);
 	if (error)
 		return error;
 	neigh = __neigh_lookup(&clip_tbl, &ip, rt->u.dst.dev, 1);
@@ -552,9 +544,9 @@ static int clip_setentry(struct atm_vcc *vcc, __be32 ip)
 	entry = NEIGH2ENTRY(neigh);
 	if (entry != clip_vcc->entry) {
 		if (!clip_vcc->entry)
-			DPRINTK("setentry: add\n");
+			pr_debug("setentry: add\n");
 		else {
-			DPRINTK("setentry: update\n");
+			pr_debug("setentry: update\n");
 			unlink_clip_vcc(clip_vcc);
 		}
 		link_vcc(clip_vcc, entry);
@@ -611,7 +603,7 @@ static int clip_create(int number)
 	}
 	clip_priv->next = clip_devs;
 	clip_devs = dev;
-	DPRINTK("registered (net:%s)\n", dev->name);
+	pr_debug("registered (net:%s)\n", dev->name);
 	return number;
 }
 
@@ -620,6 +612,9 @@ static int clip_device_event(struct notifier_block *this, unsigned long event,
 {
 	struct net_device *dev = arg;
 
+	if (dev_net(dev) != &init_net)
+		return NOTIFY_DONE;
+
 	if (event == NETDEV_UNREGISTER) {
 		neigh_ifdown(&clip_tbl, dev);
 		return NOTIFY_DONE;
@@ -631,16 +626,16 @@ static int clip_device_event(struct notifier_block *this, unsigned long event,
 
 	switch (event) {
 	case NETDEV_UP:
-		DPRINTK("clip_device_event NETDEV_UP\n");
+		pr_debug("clip_device_event NETDEV_UP\n");
 		to_atmarpd(act_up, PRIV(dev)->number, 0);
 		break;
 	case NETDEV_GOING_DOWN:
-		DPRINTK("clip_device_event NETDEV_DOWN\n");
+		pr_debug("clip_device_event NETDEV_DOWN\n");
 		to_atmarpd(act_down, PRIV(dev)->number, 0);
 		break;
 	case NETDEV_CHANGE:
 	case NETDEV_CHANGEMTU:
-		DPRINTK("clip_device_event NETDEV_CHANGE*\n");
+		pr_debug("clip_device_event NETDEV_CHANGE*\n");
 		to_atmarpd(act_change, PRIV(dev)->number, 0);
 		break;
 	}
@@ -653,10 +648,6 @@ static int clip_inet_event(struct notifier_block *this, unsigned long event,
 	struct in_device *in_dev;
 
 	in_dev = ((struct in_ifaddr *)ifa)->ifa_dev;
-	if (!in_dev || !in_dev->dev) {
-		printk(KERN_WARNING "clip_inet_event: no device\n");
-		return NOTIFY_DONE;
-	}
 	/*
 	 * Transitions are of the down-change-up type, so it's sufficient to
 	 * handle the change on up.
@@ -681,14 +672,14 @@ static struct notifier_block clip_inet_notifier = {
 
 static void atmarpd_close(struct atm_vcc *vcc)
 {
-	DPRINTK("atmarpd_close\n");
+	pr_debug("atmarpd_close\n");
 
 	rtnl_lock();
 	atmarpd = NULL;
 	skb_queue_purge(&sk_atm(vcc)->sk_receive_queue);
 	rtnl_unlock();
 
-	DPRINTK("(done)\n");
+	pr_debug("(done)\n");
 	module_put(THIS_MODULE);
 }
 
@@ -908,6 +899,8 @@ static void *clip_seq_sub_iter(struct neigh_seq_state *_state,
 
 static void *clip_seq_start(struct seq_file *seq, loff_t * pos)
 {
+	struct clip_seq_state *state = seq->private;
+	state->ns.neigh_sub_iter = clip_seq_sub_iter;
 	return neigh_seq_start(seq, pos, &clip_tbl, NEIGH_SEQ_NEIGH_ONLY);
 }
 
@@ -928,7 +921,7 @@ static int clip_seq_show(struct seq_file *seq, void *v)
 	return 0;
 }
 
-static struct seq_operations arp_seq_ops = {
+static const struct seq_operations arp_seq_ops = {
 	.start	= clip_seq_start,
 	.next	= neigh_seq_next,
 	.stop	= neigh_seq_stop,
@@ -937,40 +930,21 @@ static struct seq_operations arp_seq_ops = {
 
 static int arp_seq_open(struct inode *inode, struct file *file)
 {
-	struct clip_seq_state *state;
-	struct seq_file *seq;
-	int rc = -EAGAIN;
-
-	state = kzalloc(sizeof(*state), GFP_KERNEL);
-	if (!state) {
-		rc = -ENOMEM;
-		goto out_kfree;
-	}
-	state->ns.neigh_sub_iter = clip_seq_sub_iter;
-
-	rc = seq_open(file, &arp_seq_ops);
-	if (rc)
-		goto out_kfree;
-
-	seq = file->private_data;
-	seq->private = state;
-out:
-	return rc;
-
-out_kfree:
-	kfree(state);
-	goto out;
+	return seq_open_net(inode, file, &arp_seq_ops,
+			    sizeof(struct clip_seq_state));
 }
 
 static const struct file_operations arp_seq_fops = {
 	.open		= arp_seq_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
-	.release	= seq_release_private,
+	.release	= seq_release_net,
 	.owner		= THIS_MODULE
 };
 #endif
 
+static void atm_clip_exit_noproc(void);
+
 static int __init atm_clip_init(void)
 {
 	neigh_table_init_no_netlink(&clip_tbl);
@@ -986,21 +960,23 @@ static int __init atm_clip_init(void)
 	{
 		struct proc_dir_entry *p;
 
-		p = create_proc_entry("arp", S_IRUGO, atm_proc_root);
-		if (p)
-			p->proc_fops = &arp_seq_fops;
+		p = proc_create("arp", S_IRUGO, atm_proc_root, &arp_seq_fops);
+		if (!p) {
+			printk(KERN_ERR "Unable to initialize "
+			       "/proc/net/atm/arp\n");
+			atm_clip_exit_noproc();
+			return -ENOMEM;
+		}
 	}
 #endif
 
 	return 0;
 }
 
-static void __exit atm_clip_exit(void)
+static void atm_clip_exit_noproc(void)
 {
 	struct net_device *dev, *next;
 
-	remove_proc_entry("arp", atm_proc_root);
-
 	unregister_inetaddr_notifier(&clip_inet_notifier);
 	unregister_netdevice_notifier(&clip_dev_notifier);
 
@@ -1031,6 +1007,13 @@ static void __exit atm_clip_exit(void)
 	clip_tbl_hook = NULL;
 }
 
+static void __exit atm_clip_exit(void)
+{
+	remove_proc_entry("arp", atm_proc_root);
+
+	atm_clip_exit_noproc();
+}
+
 module_init(atm_clip_init);
 module_exit(atm_clip_exit);
 MODULE_AUTHOR("Werner Almesberger");