From 440ea77654d0fbb6e144dc90f6fa1d4429d83280 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Antoine=20T=C3=A9nart?= Date: Thu, 15 Jun 2017 16:43:22 +0200 Subject: [PATCH] net: mvmdio: check the MII_ADDR_C45 bit is not set for smi operations Add a check for the read and write smi operations, to ensure the MII_ADDR_C45 bit isn't set. This will be needed as soon as the xSMI support is added to the mvmdio driver. Signed-off-by: Antoine Tenart Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvmdio.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c index e4aa8e2d2e8a..fe6072aae0a6 100644 --- a/drivers/net/ethernet/marvell/mvmdio.c +++ b/drivers/net/ethernet/marvell/mvmdio.c @@ -126,6 +126,9 @@ static int orion_mdio_read(struct mii_bus *bus, int mii_id, u32 val; int ret; + if (regnum & MII_ADDR_C45) + return -EOPNOTSUPP; + ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus); if (ret < 0) goto out; @@ -157,6 +160,9 @@ static int orion_mdio_write(struct mii_bus *bus, int mii_id, struct orion_mdio_dev *dev = bus->priv; int ret; + if (regnum & MII_ADDR_C45) + return -EOPNOTSUPP; + ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus); if (ret < 0) goto out; -- 2.39.5