[LLC]: allow applications to get copy of kernel datagrams
It is legal for an application to bind to a SAP that is also being used by the kernel. This happens if the bridge module binds to the STP SAP, and the user wants to have a daemon for STP as well. It is possible to have kernel doing STP on one bridge, but let application do RSTP on another bridge. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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