diff options
| -rw-r--r-- | net/bridge/br_fdb.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 7500c84fc675..284b3662d234 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -587,8 +587,10 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, fdb->dst = source; fdb_modified = true; /* Take over HW learned entry */ - test_and_clear_bit(BR_FDB_ADDED_BY_EXT_LEARN, - &fdb->flags); + if (unlikely(test_bit(BR_FDB_ADDED_BY_EXT_LEARN, + &fdb->flags))) + clear_bit(BR_FDB_ADDED_BY_EXT_LEARN, + &fdb->flags); } if (now != fdb->updated) fdb->updated = now; |