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net: bridge: Set BR_FDB_ADDED_BY_USER early in fdb_add_entry

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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>
Link: https://lore.kernel.org/r/20231016-fdb_limit-v5-1-32cddff87758@avm.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Johannes Nixdorf 2023-10-16 15:27:20 +02:00 committed by Jakub Kicinski
parent 56a7bb12c7
commit cbf51acbc5
1 changed files with 4 additions and 3 deletions
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7
net/bridge/br_fdb.c
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@ -1075,7 +1075,8 @@ 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;
@ -1088,6 +1089,8 @@ 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) {
@ -1119,8 +1122,6 @@ 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)