commit 55fd36419c1f27053f7e0cd067450b2f6a62cec8
author Shruti Kanetkar <Shruti@Freescale.com> Wed Jun 11 13:41:40 2014 -0500
committer David S. Miller <davem@davemloft.net> Wed Jun 11 15:50:59 2014 -0700
tree 9203f9101ce11e1a40dd14ba6fbf59ffa2fedb63
parent 6e765a009ad33845033f94cf47159327f2ba59db

net/fsl: Make xgmac_mdio read error message useful

Print the device address, the register number and the PHY ID for
which the MDIO read operation failed

Signed-off-by: Shruti Kanetkar <Shruti@Freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/xgmac_mdio.c

diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c
index d449fcb9..0c9d55c 100644
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -162,7 +162,9 @@
 
 	/* Return all Fs if nothing was there */
 	if (in_be32(&regs->mdio_stat) & MDIO_STAT_RD_ER) {
-		dev_err(&bus->dev, "MDIO read error\n");
+		dev_err(&bus->dev,
+			"Error while reading PHY%d reg at %d.%d\n",
+			phy_id, dev_addr, regnum);
 		return 0xffff;
 	}