[PATCH net-next 2/9] net: dsa: mv88e6xxx: skip unused ports

[Vivien Didelot]

The unused ports are currently configured in normal mode. This does not
prevent the switch from being functional, but it is unnecessary. Skip
unused ports.

Signed-off-by: Vivien Didelot <vivien.dide...@savoirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 677d6902807e..2d8cf66e8f74 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2005,6 +2005,9 @@ static int mv88e6xxx_setup(struct dsa_switch *ds)
 
        /* Setup Switch Port Registers */
        for (i = 0; i < mv88e6xxx_num_ports(chip); i++) {
+               if (dsa_is_unused_port(ds, i))
+                       continue;
+
                err = mv88e6xxx_setup_port(chip, i);
                if (err)
                        goto unlock;
-- 
2.14.3