[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>

1 files changed, 7 insertions, 5 deletions

diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index 67bb29b44d1b..0ee6ded18f3a 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -120,16 +120,18 @@ static int recv_msg(struct sk_buff *buf, struct net_device *dev,
 
 static int enable_bearer(struct tipc_bearer *tb_ptr)
 {
-        struct net_device *dev = dev_base;
+        struct net_device *dev, *pdev;
         struct eth_bearer *eb_ptr = &eth_bearers[0];
         struct eth_bearer *stop = &eth_bearers[MAX_ETH_BEARERS];
         char *driver_name = strchr((const char *)tb_ptr->name, ':') + 1;
 
         /* Find device with specified name */
-
-        while (dev && dev->name && strncmp(dev->name, driver_name, IFNAMSIZ)) {
-                dev = dev->next;
-        }
+        dev = NULL;
+        for_each_netdev(pdev)
+                if (!strncmp(dev->name, driver_name, IFNAMSIZ)) {
+                        dev = pdev;
+                        break;
+                }
         if (!dev)
                 return -ENODEV;