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authorDavid S. Miller <davem@davemloft.net>2009-03-04 23:46:25 -0800
committerDavid S. Miller <davem@davemloft.net>2009-03-04 23:46:25 -0800
commit9d40bbda599def1e1d155d7f7dca14fe8744bd2b (patch)
treed246fbaec294830ecab0bb4b3b38d925abb5ffd8 /net/8021q/vlan_dev.c
parent54acd0efab072cb70e87206329d561b297f93bbb (diff)
downloadop-kernel-dev-9d40bbda599def1e1d155d7f7dca14fe8744bd2b.zip
op-kernel-dev-9d40bbda599def1e1d155d7f7dca14fe8744bd2b.tar.gz
vlan: Fix vlan-in-vlan crashes.
As analyzed by Patrick McHardy, vlan needs to reset it's netdev_ops pointer in it's ->init() function but this leaves the compat method pointers stale. Add a netdev_resync_ops() and call it from the vlan code. Any other driver which changes ->netdev_ops after register_netdevice() will need to call this new function after doing so too. With help from Patrick McHardy. Tested-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q/vlan_dev.c')
-rw-r--r--net/8021q/vlan_dev.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 4a19acd..1b34135 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -553,7 +553,7 @@ static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa)
int err = 0;
if (netif_device_present(real_dev) && ops->ndo_neigh_setup)
- err = ops->ndo_neigh_setup(dev, pa);
+ err = ops->ndo_neigh_setup(real_dev, pa);
return err;
}
@@ -639,6 +639,7 @@ static int vlan_dev_init(struct net_device *dev)
dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
dev->netdev_ops = &vlan_netdev_ops;
}
+ netdev_resync_ops(dev);
if (is_vlan_dev(real_dev))
subclass = 1;
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