net: smsc911x: Fix bug where PHY interrupts are overwritten by 0

By default, mdiobus_alloc() sets the PHYs to polling mode, but a
pointer size memcpy means that a couple IRQs end up being overwritten
with a value of 0. This means that PHY_POLL is disabled and results
in unpredictable behavior depending on the PHY's location on the
MDIO bus. Remove that memcpy and the now unused phy_irq member to
force the SMSC911x PHYs into polling mode 100% of the time.

Fixes: e7f4dc3536a4 ("mdio: Move allocation of interrupts into core")
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 8af25563f627034e49be2304ad8531ed6c19bd99..b5ab5e120bca3a8631e3634134f740449773e4b2 100644 (file)
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -116,7 +116,6 @@ struct smsc911x_data {
 
        struct phy_device *phy_dev;
        struct mii_bus *mii_bus;
-       int phy_irq[PHY_MAX_ADDR];
        unsigned int using_extphy;
        int last_duplex;
        int last_carrier;
@@ -1073,7 +1072,6 @@ static int smsc911x_mii_init(struct platform_device *pdev,
        pdata->mii_bus->priv = pdata;
        pdata->mii_bus->read = smsc911x_mii_read;
        pdata->mii_bus->write = smsc911x_mii_write;
-       memcpy(pdata->mii_bus->irq, pdata->phy_irq, sizeof(pdata->mii_bus));
 
        pdata->mii_bus->parent = &pdev->dev;