xiaomi-sm8450/android_kernel_xiaomi_sm8450
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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 <xemul@openvz.org>
Acked-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelianov
2007-05-03 15:13:45 -07:00
committed by David S. Miller
parent 03fba04796
commit 7562f876cd
31 changed files with 253 additions and 198 deletions
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5
net/netrom/nr_route.c
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@@ -598,7 +598,7 @@ struct net_device *nr_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_NETROM)
if (first == NULL || strncmp(dev->name, first->name, 3) < 0)
first = dev;
@@ -618,12 +618,13 @@ struct net_device *nr_dev_get(ax25_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_NETROM && ax25cmp(addr, (ax25_address *)dev->dev_addr) == 0) {
dev_hold(dev);
goto out;
}
}
dev = NULL;
out:
read_unlock(&dev_base_lock);
return dev;