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| author | Nikolay Aleksandrov <nikolay@cumulusnetworks.com> | 2017-02-13 14:59:10 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-14 12:41:03 -0500 |
| commit | 410b3d48f5111a28bb8d4c3d3dc5984c1baf7fc9 (patch) | |
| tree | bc656691dc1484ec5dbe7942535b3a63f75d265e /net/bridge/br_private.h | |
| parent | bfd0aeac52f74bfb44c0974131e44abb33a13e78 (diff) | |
| download | linux-410b3d48f5111a28bb8d4c3d3dc5984c1baf7fc9.tar.gz linux-410b3d48f5111a28bb8d4c3d3dc5984c1baf7fc9.tar.xz | |
bridge: fdb: add proper lock checks in searching functions
In order to avoid new errors add checks to br_fdb_find and fdb_find_rcu
functions. The first requires hash_lock, the second obviously RCU.
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_private.h')
| -rw-r--r-- | net/bridge/br_private.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 61368186edea..2288fca7756c 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -531,6 +531,15 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, const unsigned char *addr, u16 vid); +static inline bool br_hash_lock_held(struct net_bridge *br) +{ +#ifdef CONFIG_LOCKDEP + return lockdep_is_held(&br->hash_lock); +#else + return true; +#endif +} + /* br_forward.c */ enum br_pkt_type { BR_PKT_UNICAST, |