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-rw-r--r--drivers/net/dsa/sja1105/sja1105_main.c3
-rw-r--r--include/linux/dsa/8021q.h5
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
index ee0fb1c343f1..0c55a29d7dd3 100644
--- a/drivers/net/dsa/sja1105/sja1105_main.c
+++ b/drivers/net/dsa/sja1105/sja1105_main.c
@@ -3167,8 +3167,7 @@ static int sja1105_setup(struct dsa_switch *ds)
ds->vlan_filtering_is_global = true;
ds->untag_bridge_pvid = true;
ds->fdb_isolation = true;
- /* tag_8021q has 3 bits for the VBID, and the value 0 is reserved */
- ds->max_num_bridges = 7;
+ ds->max_num_bridges = DSA_TAG_8021Q_MAX_NUM_BRIDGES;
/* Advertise the 8 egress queues */
ds->num_tx_queues = SJA1105_NUM_TC;
diff --git a/include/linux/dsa/8021q.h b/include/linux/dsa/8021q.h
index f3664ee12170..1dda2a13b832 100644
--- a/include/linux/dsa/8021q.h
+++ b/include/linux/dsa/8021q.h
@@ -8,6 +8,11 @@
#include <net/dsa.h>
#include <linux/types.h>
+/* VBID is limited to three bits only and zero is reserved.
+ * Only 7 bridges can be enumerated.
+ */
+#define DSA_TAG_8021Q_MAX_NUM_BRIDGES 7
+
int dsa_tag_8021q_register(struct dsa_switch *ds, __be16 proto);
void dsa_tag_8021q_unregister(struct dsa_switch *ds);