/*
- * Linux NET3: Multicast List maintenance.
+ * Linux NET3: Multicast List maintenance.
*
* Authors:
- * Tim Kordas <tjk@nostromo.eeap.cwru.edu>
+ * Tim Kordas <tjk@nostromo.eeap.cwru.edu>
* Richard Underwood <richard@wuzz.demon.co.uk>
*
* Stir fried together from the IP multicast and CAP patches above
- * Alan Cox <Alan.Cox@linux.org>
+ * Alan Cox <Alan.Cox@linux.org>
*
* Fixes:
* Alan Cox : Update the device on a real delete
* 2 of the License, or (at your option) any later version.
*/
-#include <linux/config.h>
-#include <linux/module.h>
+#include <linux/module.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/socket.h>
/*
- * Device multicast list maintenance.
+ * Device multicast list maintenance.
*
- * This is used both by IP and by the user level maintenance functions.
- * Unlike BSD we maintain a usage count on a given multicast address so
- * that a casual user application can add/delete multicasts used by
+ * This is used both by IP and by the user level maintenance functions.
+ * Unlike BSD we maintain a usage count on a given multicast address so
+ * that a casual user application can add/delete multicasts used by
* protocols without doing damage to the protocols when it deletes the
* entries. It also helps IP as it tracks overlapping maps.
*
* Device mc lists are changed by bh at least if IPv6 is enabled,
* so that it must be bh protected.
*
- * We block accesses to device mc filters with dev->xmit_lock.
+ * We block accesses to device mc filters with netif_tx_lock.
*/
/*
* Update the multicast list into the physical NIC controller.
*/
-
+
static void __dev_mc_upload(struct net_device *dev)
{
/* Don't do anything till we up the interface
void dev_mc_upload(struct net_device *dev)
{
- spin_lock_bh(&dev->xmit_lock);
+ netif_tx_lock_bh(dev);
__dev_mc_upload(dev);
- spin_unlock_bh(&dev->xmit_lock);
+ netif_tx_unlock_bh(dev);
}
/*
* Delete a device level multicast
*/
-
+
int dev_mc_delete(struct net_device *dev, void *addr, int alen, int glbl)
{
int err = 0;
struct dev_mc_list *dmi, **dmip;
- spin_lock_bh(&dev->xmit_lock);
+ netif_tx_lock_bh(dev);
for (dmip = &dev->mc_list; (dmi = *dmip) != NULL; dmip = &dmi->next) {
/*
* loaded filter is now wrong. Fix it
*/
__dev_mc_upload(dev);
-
- spin_unlock_bh(&dev->xmit_lock);
+
+ netif_tx_unlock_bh(dev);
return 0;
}
}
err = -ENOENT;
done:
- spin_unlock_bh(&dev->xmit_lock);
+ netif_tx_unlock_bh(dev);
return err;
}
/*
* Add a device level multicast
*/
-
+
int dev_mc_add(struct net_device *dev, void *addr, int alen, int glbl)
{
int err = 0;
dmi1 = kmalloc(sizeof(*dmi), GFP_ATOMIC);
- spin_lock_bh(&dev->xmit_lock);
+ netif_tx_lock_bh(dev);
for (dmi = dev->mc_list; dmi != NULL; dmi = dmi->next) {
if (memcmp(dmi->dmi_addr, addr, dmi->dmi_addrlen) == 0 &&
dmi->dmi_addrlen == alen) {
}
if ((dmi = dmi1) == NULL) {
- spin_unlock_bh(&dev->xmit_lock);
+ netif_tx_unlock_bh(dev);
return -ENOMEM;
}
memcpy(dmi->dmi_addr, addr, alen);
dev->mc_count++;
__dev_mc_upload(dev);
-
- spin_unlock_bh(&dev->xmit_lock);
+
+ netif_tx_unlock_bh(dev);
return 0;
done:
- spin_unlock_bh(&dev->xmit_lock);
+ netif_tx_unlock_bh(dev);
kfree(dmi1);
return err;
}
void dev_mc_discard(struct net_device *dev)
{
- spin_lock_bh(&dev->xmit_lock);
-
+ netif_tx_lock_bh(dev);
+
while (dev->mc_list != NULL) {
struct dev_mc_list *tmp = dev->mc_list;
dev->mc_list = tmp->next;
}
dev->mc_count = 0;
- spin_unlock_bh(&dev->xmit_lock);
+ netif_tx_unlock_bh(dev);
}
#ifdef CONFIG_PROC_FS
read_lock(&dev_base_lock);
for (dev = dev_base; dev; dev = dev->next) {
- if (off++ == *pos)
+ if (off++ == *pos)
return dev;
}
return NULL;
struct dev_mc_list *m;
struct net_device *dev = v;
- spin_lock_bh(&dev->xmit_lock);
+ netif_tx_lock_bh(dev);
for (m = dev->mc_list; m; m = m->next) {
int i;
seq_putc(seq, '\n');
}
- spin_unlock_bh(&dev->xmit_lock);
+ netif_tx_unlock_bh(dev);
return 0;
}
return seq_open(file, &dev_mc_seq_ops);
}
-static struct file_operations dev_mc_seq_fops = {
+static const struct file_operations dev_mc_seq_fops = {
.owner = THIS_MODULE,
.open = dev_mc_seq_open,
.read = seq_read,