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authorVladimir Oltean <vladimir.oltean@nxp.com>2021-07-19 16:51:38 +0300
committerDavid S. Miller <davem@davemloft.net>2021-07-20 07:04:27 -0700
commitc6451cda100d4ebbc3f6819e1161ce0e38ce7746 (patch)
tree70e29f32a10094a1bf3ae8b07f8c4e117a1b7809
parent7d901a1e878a1cf8dd3ba7b4c057ad5eb7a40af0 (diff)
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>
-rw-r--r--include/net/switchdev.h6
-rw-r--r--net/dsa/slave.c2
2 files changed, 7 insertions, 1 deletions
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index e4cac9218ce1..745eb25fb8c4 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -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);
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index ffbba1e71551..feb64f58faed 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -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;