From e3c50d5d25ac09efd9acbe2b2a3e365466de84ed Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 15 Jul 2008 02:58:39 -0700 Subject: [PATCH] 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: David S. Miller --- drivers/net/loopback.c | 8 ++++---- include/linux/netdevice.h | 4 +++- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c index 41b774baac4d..49f6bc036a92 100644 --- a/drivers/net/loopback.c +++ b/drivers/net/loopback.c @@ -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); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index a1c2c2204498..fdac1159253e 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -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 -- 2.39.5