[PATCH 5.4 107/111] net: dsa: b53: VLAN filtering is global to all users

From: Greg Kroah-Hartman
Date: Mon Mar 29 2021 - 04:26:56 EST


From: Florian Fainelli <f.fainelli@xxxxxxxxx>

commit d45c36bafb94e72fdb6dee437279b61b6d97e706 upstream.

The bcm_sf2 driver uses the b53 driver as a library but does not make
usre of the b53_setup() function, this made it fail to inherit the
vlan_filtering_is_global attribute. Fix this by moving the assignment to
b53_switch_alloc() which is used by bcm_sf2.

Fixes: 7228b23e68f7 ("net: dsa: b53: Let DSA handle mismatched VLAN filtering settings")
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/dsa/b53/b53_common.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -996,13 +996,6 @@ static int b53_setup(struct dsa_switch *
b53_disable_port(ds, port);
}

- /* Let DSA handle the case were multiple bridges span the same switch
- * device and different VLAN awareness settings are requested, which
- * would be breaking filtering semantics for any of the other bridge
- * devices. (not hardware supported)
- */
- ds->vlan_filtering_is_global = true;
-
return ret;
}

@@ -2418,6 +2411,13 @@ struct b53_device *b53_switch_alloc(stru
dev->priv = priv;
dev->ops = ops;
ds->ops = &b53_switch_ops;
+ /* Let DSA handle the case were multiple bridges span the same switch
+ * device and different VLAN awareness settings are requested, which
+ * would be breaking filtering semantics for any of the other bridge
+ * devices. (not hardware supported)
+ */
+ ds->vlan_filtering_is_global = true;
+
mutex_init(&dev->reg_mutex);
mutex_init(&dev->stats_mutex);