bridge: skip fdb add if the port shouldn't learn
Check in fdb_add_entry() if the source port should learn, similar check is used in br_fdb_update. Note that new fdb entries which are added manually or as local ones are still permitted. This patch has been tested by running traffic via a bridge port and switching the port's state, also by manually adding/removing entries from the bridge's fdb. Signed-off-by: NWilson Kok <wkok@cumulusnetworks.com> Signed-off-by: NNikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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