提交 e3c50d5d 编写于 作者: D David S. Miller

netdev: netdev_priv() can now be sane again.

The private area of a netdev is now at a fixed offset once more.

Unfortunately, some assumptions that netdev_priv() == netdev->priv
crept back into the tree.  In particular this happened in the
loopback driver.  Make it use netdev->ml_priv.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 6b0fb126
......@@ -153,7 +153,7 @@ static int loopback_xmit(struct sk_buff *skb, struct net_device *dev)
dev->last_rx = jiffies;
/* it's OK to use per_cpu_ptr() because BHs are off */
pcpu_lstats = netdev_priv(dev);
pcpu_lstats = dev->ml_priv;
lb_stats = per_cpu_ptr(pcpu_lstats, smp_processor_id());
lb_stats->bytes += skb->len;
lb_stats->packets++;
......@@ -171,7 +171,7 @@ static struct net_device_stats *get_stats(struct net_device *dev)
unsigned long packets = 0;
int i;
pcpu_lstats = netdev_priv(dev);
pcpu_lstats = dev->ml_priv;
for_each_possible_cpu(i) {
const struct pcpu_lstats *lb_stats;
......@@ -207,13 +207,13 @@ static int loopback_dev_init(struct net_device *dev)
if (!lstats)
return -ENOMEM;
dev->priv = lstats;
dev->ml_priv = lstats;
return 0;
}
static void loopback_dev_free(struct net_device *dev)
{
struct pcpu_lstats *lstats = netdev_priv(dev);
struct pcpu_lstats *lstats = dev->ml_priv;
free_percpu(lstats);
free_netdev(dev);
......
......@@ -808,7 +808,9 @@ void dev_net_set(struct net_device *dev, struct net *net)
*/
static inline void *netdev_priv(const struct net_device *dev)
{
return dev->priv;
return (char *)dev + ((sizeof(struct net_device)
+ NETDEV_ALIGN_CONST)
& ~NETDEV_ALIGN_CONST);
}
/* Set the sysfs physical device reference for the network logical device
......
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