Commit b4076d17 authored Jul 30, 2009 by Stephen Hemminger Committed by David S. Miller Jul 30, 2009

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>

parent 573dd788

net/8021q/vlan.c

+0 −6

Original line number	Original line	Diff line number	Diff line
	@@ -225,12 +225,6 @@ int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id)
	return -EOPNOTSUPP;		return -EOPNOTSUPP;
	}		}

	/* The real device must be up and operating in order to
	* assosciate a VLAN device with it.
	*/
	if (!(real_dev->flags & IFF_UP))
	return -ENETDOWN;

	if (__find_vlan_dev(real_dev, vlan_id) != NULL)		if (__find_vlan_dev(real_dev, vlan_id) != NULL)
	return -EEXIST;		return -EEXIST;