netdev - [RFC PATCH v3 net-next 02/15] net: bridge: allow br_fdb_replay to be called for the bridge device

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Date:   Sun, 27 Jun 2021 17:10:00 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     netdev@...r.kernel.org
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Jiri Pirko <jiri@...nulli.us>,
        Ido Schimmel <idosch@...sch.org>,
        Tobias Waldekranz <tobias@...dekranz.com>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <nikolay@...dia.com>,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: [RFC PATCH v3 net-next 02/15] net: bridge: allow br_fdb_replay to be called for the bridge device

From: Vladimir Oltean <vladimir.oltean@....com>

When a port joins a bridge which already has local FDB entries pointing
to the bridge device itself, we would like to offload those, so allow
the "dev" argument to be equal to the bridge too. The code already does
what we need in that case.

Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 net/bridge/br_fdb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 0296d737a519..5a92bec02bbc 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -754,7 +754,8 @@ int br_fdb_replay(const struct net_device *br_dev, const struct net_device *dev,
 	unsigned long action;
 	int err = 0;
 
-	if (!netif_is_bridge_master(br_dev) || !netif_is_bridge_port(dev))
+	if (!netif_is_bridge_master(br_dev) ||
+	    (!netif_is_bridge_port(dev) && !netif_is_bridge_master(dev)))
 		return -EINVAL;
 
 	br = netdev_priv(br_dev);
-- 
2.25.1