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| author | Pavel Emelianov <xemul@openvz.org> | 2007-05-03 15:13:45 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-05-03 15:13:45 -0700 |
| commit | 7562f876cd93800f2f8c89445f2a563590b24e09 (patch) | |
| tree | 78a34c011af275efa0d55ba59c3bd49b771dd533 /include/linux/netdevice.h | |
| parent | 03fba0479600114f32d29eee74ca3eaa364606bf (diff) | |
| download | blackbird-obmc-linux-7562f876cd93800f2f8c89445f2a563590b24e09.tar.gz blackbird-obmc-linux-7562f876cd93800f2f8c89445f2a563590b24e09.zip | |
[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>
Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 4428f1c3c13c..30446222b396 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -304,7 +304,7 @@ struct net_device unsigned long state; - struct net_device *next; + struct list_head dev_list; /* The device initialization function. Called only once. */ int (*init)(struct net_device *dev); @@ -575,9 +575,31 @@ struct packet_type { #include <linux/notifier.h> extern struct net_device loopback_dev; /* The loopback */ -extern struct net_device *dev_base; /* All devices */ +extern struct list_head dev_base_head; /* All devices */ extern rwlock_t dev_base_lock; /* Device list lock */ +#define for_each_netdev(d) \ + list_for_each_entry(d, &dev_base_head, dev_list) +#define for_each_netdev_safe(d, n) \ + list_for_each_entry_safe(d, n, &dev_base_head, dev_list) +#define for_each_netdev_continue(d) \ + list_for_each_entry_continue(d, &dev_base_head, dev_list) +#define net_device_entry(lh) list_entry(lh, struct net_device, dev_list) + +static inline struct net_device *next_net_device(struct net_device *dev) +{ + struct list_head *lh; + + lh = dev->dev_list.next; + return lh == &dev_base_head ? NULL : net_device_entry(lh); +} + +static inline struct net_device *first_net_device(void) +{ + return list_empty(&dev_base_head) ? NULL : + net_device_entry(dev_base_head.next); +} + extern int netdev_boot_setup_check(struct net_device *dev); extern unsigned long netdev_boot_base(const char *prefix, int unit); extern struct net_device *dev_getbyhwaddr(unsigned short type, char *hwaddr); |
