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bridge: Allow clearing of pvid and untagged bitmap

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Currently, it is possible to modify the vlan filter
configuration to add pvid or untagged support.
For example:
  bridge vlan add vid 10 dev eth0
  bridge vlan add vid 10 dev eth0 untagged pvid

The second statement will modify vlan 10 to
include untagged and pvid configuration.
However, it is currently impossible to go backwards
  bridge vlan add vid 10 dev eth0 untagged pvid
  bridge vlan add vid 10 dev eth0

Here nothing happens.  This patch correct this so
that any modifiers not supplied are removed from
the configuration.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich 2014-09-12 16:26:17 -04:00 committed by David S. Miller
parent 20adfa1a81
commit 635126b7ca
1 changed files with 4 additions and 0 deletions
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4
net/bridge/br_vlan.c
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@ -27,9 +27,13 @@ static void __vlan_add_flags(struct net_port_vlans *v, u16 vid, u16 flags)
{
if (flags & BRIDGE_VLAN_INFO_PVID)
__vlan_add_pvid(v, vid);
else
__vlan_delete_pvid(v, vid);
if (flags & BRIDGE_VLAN_INFO_UNTAGGED)
set_bit(vid, v->untagged_bitmap);
else
clear_bit(vid, v->untagged_bitmap);
}
static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)