netdev - [PATCH v3 net-next 4/6] net: dsa: mv88e6xxx: Print offending port when vlan check fails

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Message-Id: <1510262996-23509-5-git-send-email-andrew@lunn.ch>
Date:   Thu,  9 Nov 2017 22:29:54 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     David Miller <davem@...emloft.net>
Cc:     Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        netdev <netdev@...r.kernel.org>, Andrew Lunn <andrew@...n.ch>
Subject: [PATCH v3 net-next 4/6] net: dsa: mv88e6xxx: Print offending port when vlan check fails

When testing if a VLAN is one more than one bridge, we print an error
message that the VLAN is already in use somewhere else. Print both the
new port which would like the VLAN, and the port which already has it,
to aid debugging.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 420621c759e4..0a4a740ebea6 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1151,8 +1151,8 @@ static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port,
 			if (!dsa_to_port(ds, i)->bridge_dev)
 				continue;
 
-			dev_err(ds->dev, "p%d: hw VLAN %d already used by %s\n",
-				port, vlan.vid,
+			dev_err(ds->dev, "p%d: hw VLAN %d already used by port %d in %s\n",
+				port, vlan.vid, i,
 				netdev_name(dsa_to_port(ds, i)->bridge_dev));
 			err = -EOPNOTSUPP;
 			goto unlock;
-- 
2.15.0