From: Antoine Ténart Date: Thu, 15 Jun 2017 14:43:22 +0000 (+0200) Subject: net: mvmdio: check the MII_ADDR_C45 bit is not set for smi operations X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=440ea77654d0fbb6e144dc90f6fa1d4429d83280;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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 --- 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;