Commit c6451cda authored Jul 19, 2021 by Vladimir Oltean Committed by David S. Miller Jul 20, 2021

net: switchdev: introduce helper for checking dynamically learned FDB entries



It is a bit difficult to understand what DSA checks when it tries to
avoid installing dynamically learned addresses on foreign interfaces as
local host addresses, so create a generic switchdev helper that can be
reused and is generally more readable.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 7d901a1e

include/net/switchdev.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -238,6 +238,12 @@ switchdev_notifier_info_to_extack(const struct switchdev_notifier_info *info)
		return info->extack;
		}

		static inline bool
		switchdev_fdb_is_dynamically_learned(const struct switchdev_notifier_fdb_info *fdb_info)
		{
		return !fdb_info->added_by_user && !fdb_info->is_local;
		}

		#ifdef CONFIG_NET_SWITCHDEV

		void switchdev_deferred_process(void);

net/dsa/slave.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2438,7 +2438,7 @@ static int dsa_slave_switchdev_event(struct notifier_block *unused,
		* On the other hand, FDB entries for local termination
		* should always be installed.
		*/
		if (!fdb_info->added_by_user && !fdb_info->is_local &&
		if (switchdev_fdb_is_dynamically_learned(fdb_info) &&
		!dp->ds->assisted_learning_on_cpu_port)
		return NOTIFY_DONE;