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Subject[PATCH net-next v5 1/5] net: bridge: Set BR_FDB_ADDED_BY_USER early in fdb_add_entry
In preparation of the following fdb limit for dynamically learned entries,
allow fdb_create to detect that the entry was added by the user. This
way it can skip applying the limit in this case.

Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Johannes Nixdorf <jnixdorf-oss@avm.de>
---
net/bridge/br_fdb.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index e69a872bfc1d..f517ea92132c 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -1056,7 +1056,8 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source,
if (!(flags & NLM_F_CREATE))
return -ENOENT;

- fdb = fdb_create(br, source, addr, vid, 0);
+ fdb = fdb_create(br, source, addr, vid,
+ BIT(BR_FDB_ADDED_BY_USER));
if (!fdb)
return -ENOMEM;

@@ -1069,6 +1070,8 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source,
WRITE_ONCE(fdb->dst, source);
modified = true;
}
+
+ set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
}

if (fdb_to_nud(br, fdb) != state) {
@@ -1100,8 +1103,6 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source,
if (fdb_handle_notify(fdb, notify))
modified = true;

- set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
-
fdb->used = jiffies;
if (modified) {
if (refresh)
--
2.42.0

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