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vlan: allow creating vlan when real device is not up
There is no reason for the arbitrary restriction that device must be up to create a vlan. This patch was added to Vyatta kernel to resolve startup ordering issues where vlan's are created but real device was disabled. Note: the vlan already correctly inherits the operstate from real device; so if vlan is created and real device is marked down, the vlan is marked down. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -225,12 +225,6 @@ int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id)
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return -EOPNOTSUPP;
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}
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/* The real device must be up and operating in order to
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* assosciate a VLAN device with it.
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*/
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if (!(real_dev->flags & IFF_UP))
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return -ENETDOWN;
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if (__find_vlan_dev(real_dev, vlan_id) != NULL)
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return -EEXIST;
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