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| author | Nikolay Aleksandrov <nikolay@nvidia.com> | 2021-12-28 16:31:42 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-30 02:49:45 +0100 |
| commit | 168fed986b3a7ec7b98cab1fe84e2f282b9e6a8f (patch) | |
| tree | 559d70617e072067cb48073d22dd99a6b87f0339 /net | |
| parent | net: fix use-after-free in tw_timer_handler (diff) | |
| download | linux-168fed986b3a7ec7b98cab1fe84e2f282b9e6a8f.tar.xz linux-168fed986b3a7ec7b98cab1fe84e2f282b9e6a8f.zip | |
net: bridge: mcast: fix br_multicast_ctx_vlan_global_disabled helper
We need to first check if the context is a vlan one, then we need to
check the global bridge multicast vlan snooping flag, and finally the
vlan's multicast flag, otherwise we will unnecessarily enable vlan mcast
processing (e.g. querier timers).
Fixes: 7b54aaaf53cb ("net: bridge: multicast: add vlan state initialization and control")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Link: https://lore.kernel.org/r/20211228153142.536969-1-nikolay@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/br_private.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 2187a0c3fd22..e8c6ee322c71 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -1153,9 +1153,9 @@ br_multicast_port_ctx_get_global(const struct net_bridge_mcast_port *pmctx) static inline bool br_multicast_ctx_vlan_global_disabled(const struct net_bridge_mcast *brmctx) { - return br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) && - br_multicast_ctx_is_vlan(brmctx) && - !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED); + return br_multicast_ctx_is_vlan(brmctx) && + (!br_opt_get(brmctx->br, BROPT_MCAST_VLAN_SNOOPING_ENABLED) || + !(brmctx->vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED)); } static inline bool |