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bonding: Allow setting max_bonds to zero

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Permit bonding to function rationally if max_bonds is set to
zero.  This will load the module, but create no master devices (which can
be created via sysfs).

	Requires some change to bond_create_sysfs; currently, the
netdev sysfs directory is determined from the first bonding device created,
but this is no longer possible.  Instead, an interface from net/core is
created to create and destroy files in net_class.

	Based on a patch submitted by Phil Oester <kernel@linuxaces.com>.
Modified by Jay Vosburgh to fix the sysfs issue mentioned above and to
update the documentation.

Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Jay Vosburgh
2008-06-13 18:12:04 -07:00
committed by Jeff Garzik
parent b59f9f74c4
commit b8a9787edd
5 changed files with 24 additions and 23 deletions
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13
net/core/net-sysfs.c
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@ -468,6 +468,19 @@ int netdev_register_kobject(struct net_device *net)
return device_add(dev);
}
int netdev_class_create_file(struct class_attribute *class_attr)
{
return class_create_file(&net_class, class_attr);
}
void netdev_class_remove_file(struct class_attribute *class_attr)
{
class_remove_file(&net_class, class_attr);
}
EXPORT_SYMBOL(netdev_class_create_file);
EXPORT_SYMBOL(netdev_class_remove_file);
void netdev_initialize_kobject(struct net_device *net)
{
struct device *device = &(net->dev);