bridge's default hash_max was 512 which is rather conservative, now that
we're using the generic rhashtable API which autoshrinks let's increase
it to 4096 and move it to a define in br_private.h.
Signed-off-by: Nikolay Aleksandrov <nikolay@xxxxxxxxxxxxxxxxxxx>
---
v2, v3: no change
net/bridge/br_multicast.c | 2 +-
net/bridge/br_private.h | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 804ee15c45c1..879cd2315769 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1741,7 +1741,7 @@ static void br_ip6_multicast_query_expired(struct timer_list *t)
void br_multicast_init(struct net_bridge *br)
{
- br->hash_max = 512;
+ br->hash_max = BR_MULTICAST_DEFAULT_HASH_MAX;
br->multicast_router = MDB_RTR_TYPE_TEMP_QUERY;
br->multicast_last_member_count = 2;
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index ba50fa437a94..5719b4d3e466 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -31,6 +31,8 @@
#define BR_PORT_BITS 10
#define BR_MAX_PORTS (1<<BR_PORT_BITS)
+#define BR_MULTICAST_DEFAULT_HASH_MAX 4096
+
#define BR_VERSION "2.3"
/* Control of forwarding link local multicast */
--
2.17.2
