[NET]: Rework dev_base via list_head (v3)
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>
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 1a6aeac..01fbdd3 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -194,15 +194,15 @@
sl = sl_tail = NULL;
read_lock(&dev_base_lock);
- for (ifp = dev_base; ifp; dev_put(ifp), ifp = ifp->next) {
+ for_each_netdev(ifp) {
dev_hold(ifp);
if (!is_aoe_netif(ifp))
- continue;
+ goto cont;
skb = new_skb(sizeof *h + sizeof *ch);
if (skb == NULL) {
printk(KERN_INFO "aoe: skb alloc failure\n");
- continue;
+ goto cont;
}
skb_put(skb, sizeof *h + sizeof *ch);
skb->dev = ifp;
@@ -221,6 +221,8 @@
skb->next = sl;
sl = skb;
+cont:
+ dev_put(ifp);
}
read_unlock(&dev_base_lock);
diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index 2a299a0..ef32a5c 100644
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -1971,8 +1971,7 @@
sizeof(zero_address))) {
struct net_device *dev;
read_lock_bh(&dev_base_lock);
- dev = dev_base;
- while (dev) {
+ for_each_netdev(dev) {
if (dev->type == strip_info->dev->type &&
!memcmp(dev->dev_addr,
&strip_info->true_dev_addr,
@@ -1983,7 +1982,6 @@
read_unlock_bh(&dev_base_lock);
return (dev);
}
- dev = dev->next;
}
read_unlock_bh(&dev_base_lock);
}
diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c
index 3df82fe..98be288 100644
--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -365,7 +365,7 @@
* for reading should be OK */
read_lock(&dev_base_lock);
rcu_read_lock();
- for (dev = dev_base; dev; dev = dev->next) {
+ for_each_netdev(dev) {
struct net_device_stats *stats;
struct in_device *in_dev = __in_dev_get_rcu(dev);
if (!in_dev || !in_dev->ifa_list)
