From: Andrew Lunn <and...@lunn.ch> Sent: Monday, July 31, 2017 4:11 AM
>If the PHY is missing but expected, e.g. because of a typ0 in the dt file, it
>is not
>possible to open the interface. ip link returns:
>
>RTNETLINK answers: No such device
>
>It is not very obvious what the problem is. Add a netdev_err() in this case to
>make it easier to debug the issue.
>
>[ 21.409385] fec 2188000.ethernet eth0: Unable to connect to phy
>RTNETLINK answers: No such device
>
>Signed-off-by: Andrew Lunn <and...@lunn.ch>
Acked-by: Fugang Duan <fugang.d...@nxp.com>
>---
> drivers/net/ethernet/freescale/fec_main.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/net/ethernet/freescale/fec_main.c
>b/drivers/net/ethernet/freescale/fec_main.c
>index cc0c2a58c4de..c5995f07f821 100644
>--- a/drivers/net/ethernet/freescale/fec_main.c
>+++ b/drivers/net/ethernet/freescale/fec_main.c
>@@ -1907,8 +1907,10 @@ static int fec_enet_mii_probe(struct net_device
>*ndev)
> phy_dev = of_phy_connect(ndev, fep->phy_node,
> &fec_enet_adjust_link, 0,
> fep->phy_interface);
>- if (!phy_dev)
>+ if (!phy_dev) {
>+ netdev_err(ndev, "Unable to connect to phy\n");
> return -ENODEV;
>+ }
> } else {
> /* check for attached phy */
> for (phy_id = 0; (phy_id < PHY_MAX_ADDR); phy_id++) {
>--
>2.13.2
