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From dd082716b43a3684b2f473ae5d1e76d1c076d86d Mon Sep 17 00:00:00 2001
From: Tobias Waldekranz <tobias@waldekranz.com>
Date: Sat, 16 Jan 2021 02:25:12 +0100
Subject: [PATCH] net: dsa: Include local addresses in assisted CPU port
learning
Add local addresses (i.e. the ports' MAC addresses) to the hardware
FDB when assisted CPU port learning is enabled.
NOTE: The bridge's own MAC address is also "local". If that address is
not shared with any port, the bridge's MAC is not be added by this
functionality - but the following commit takes care of that case.
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
---
net/dsa/slave.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -2189,10 +2189,12 @@ static int dsa_slave_switchdev_event(str
fdb_info = ptr;
if (dsa_slave_dev_check(dev)) {
- if (!fdb_info->added_by_user)
- return NOTIFY_OK;
-
dp = dsa_slave_to_port(dev);
+
+ if (fdb_info->local && dp->ds->assisted_learning_on_cpu_port)
+ dp = dp->cpu_dp;
+ else if (!fdb_info->added_by_user)
+ return NOTIFY_OK;
} else {
/* Snoop addresses learnt on foreign interfaces
* bridged with us, for switches that don't
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