Re: hardware VLAN acceleration

David S. Miller (davem@redhat.com)
Thu, 28 Feb 2002 15:20:03 -0800 (PST)


From: "Leech, Christopher" <christopher.leech@intel.com>
Date: Thu, 28 Feb 2002 15:17:54 -0800


> The group is still valid, groups are never destroyed by the VLAN layer
> once they are created.

Unless the 802.1q code is built as a module. It looks to me like if you
unregistered the virtual interface and unload the 802.1q module, if another
tagged packet is received tg3 will still call vlan_hwaccel_rx and deref
tp->vlgrp which now points to who knows what.

Any time VLAN groups exist, the VLAN module should not be unloadable.

This is a hokey area of how the VLAN layer works and I intend
to fix it.
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