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net: Statically initialize init_net.dev_base_head

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This change eliminates an initialization-order hazard most
recently seen when netprio_cgroup is built into the kernel.

With thanks to Eric Dumazet for catching a bug.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rustad, Mark D
2012-07-18 09:06:07 +00:00
committed by David S. Miller
parent 2ab1c24bbd
commit 734b65417b
2 changed files with 5 additions and 2 deletions
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3
net/core/dev.c
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@@ -6283,7 +6283,8 @@ static struct hlist_head *netdev_create_hash(void)
/* Initialize per network namespace state */
static int __net_init netdev_init(struct net *net)
{
INIT_LIST_HEAD(&net->dev_base_head);
if (net != &init_net)
INIT_LIST_HEAD(&net->dev_base_head);
net->dev_name_head = netdev_create_hash();
if (net->dev_name_head == NULL)