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

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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>
This commit is contained in:
Vladimir Oltean 2021-07-19 16:51:38 +03:00 • committed by David S. Miller
parent 7d901a1e87
commit c6451cda10
2 changed files with 7 additions and 1 deletions
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6
include/net/switchdev.h
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@ -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);