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net: bridge: allow SW learn to take over HW fdb entries

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Allow to take over an entry which was previously learned via HW when it
shows up from a SW port. This is analogous to how HW takes over SW learned
entries already.

Suggested-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov 2017-03-23 12:27:12 +02:00 committed by David S. Miller
parent 9a32562bec
commit 7e26bf45e4
1 changed files with 3 additions and 0 deletions
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3
net/bridge/br_fdb.c
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@ -594,6 +594,9 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
fdb->updated = now; fdb->updated = now;
if (unlikely(added_by_user)) if (unlikely(added_by_user))
fdb->added_by_user = 1; fdb->added_by_user = 1;
/* Take over HW learned entry */
if (unlikely(fdb->added_by_external_learn))
fdb->added_by_external_learn = 0;
if (unlikely(fdb_modified)) if (unlikely(fdb_modified))
fdb_notify(br, fdb, RTM_NEWNEIGH); fdb_notify(br, fdb, RTM_NEWNEIGH);
} }