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[NET]: Rework dev_base via list_head (v3)

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Cleanup of dev_base list use, with the aim to simplify making device
list per-namespace. In almost every occasion, use of dev_base variable
and dev->next pointer could be easily replaced by for_each_netdev
loop. A few most complicated places were converted to using
first_netdev()/next_netdev().

Signed-off-by: Pavel Emelianov <[email protected]>
Acked-by: Kirill Korotaev <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Pavel Emelianov 2007-05-03 15:13:45 -07:00 • committed by David S. Miller
commit 7562f876cd
31 changed files with 249 additions and 194 deletions
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8
net/rose/rose_route.c
View file

@ -596,7 +596,7 @@ struct net_device *rose_dev_first(void)
struct net_device *dev, *first = NULL;
read_lock(&dev_base_lock);
for (dev = dev_base; dev != NULL; dev = dev->next) {
for_each_netdev(dev) {
if ((dev->flags & IFF_UP) && dev->type == ARPHRD_ROSE)
if (first == NULL || strncmp(dev->name, first->name, 3) < 0)
first = dev;
@ -614,12 +614,13 @@ struct net_device *rose_dev_get(rose_address *addr)
struct net_device *dev;
read_lock(&dev_base_lock);
for (dev = dev_base; dev != NULL; dev = dev->next) {
for_each_netdev(dev) {
if ((dev->flags & IFF_UP) && dev->type == ARPHRD_ROSE && rosecmp(addr, (rose_address *)dev->dev_addr) == 0) {
dev_hold(dev);
goto out;
}
}
dev = NULL;
out:
read_unlock(&dev_base_lock);
return dev;
@ -630,10 +631,11 @@ static int rose_dev_exists(rose_address *addr)
struct net_device *dev;
read_lock(&dev_base_lock);
for (dev = dev_base; dev != NULL; dev = dev->next) {
for_each_netdev(dev) {
if ((dev->flags & IFF_UP) && dev->type == ARPHRD_ROSE && rosecmp(addr, (rose_address *)dev->dev_addr) == 0)
goto out;
}
dev = NULL;
out:
read_unlock(&dev_base_lock);
return dev != NULL;