[PATCH AUTOSEL 5.8 09/24] net/fsl: quieten expected MDIO access failures

[Sasha Levin]

From: Jamie Iles <ja...@nuviainc.com>

[ Upstream commit 1ec8e74855588cecb2620b28b877c08f45765374 ]

MDIO reads can happen during PHY probing, and printing an error with
dev_err can result in a large number of error messages during device
probe.  On a platform with a serial console this can result in
excessively long boot times in a way that looks like an infinite loop
when multiple busses are present.  Since 0f183fd151c (net/fsl: enable
extended scanning in xgmac_mdio) we perform more scanning so there are
potentially more failures.

Reduce the logging level to dev_dbg which is consistent with the
Freescale enetc driver.

Cc: Jeremy Linton <jeremy.lin...@arm.com>
Signed-off-by: Jamie Iles <ja...@nuviainc.com>
Reviewed-by: Andrew Lunn <and...@lunn.ch>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/net/ethernet/freescale/xgmac_mdio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c 
b/drivers/net/ethernet/freescale/xgmac_mdio.c
index c82c85ef5fb34..61cb4ba0005bd 100644
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -229,7 +229,7 @@ static int xgmac_mdio_read(struct mii_bus *bus, int phy_id, 
int regnum)
        /* Return all Fs if nothing was there */
        if ((xgmac_read32(&regs->mdio_stat, endian) & MDIO_STAT_RD_ER) &&
            !priv->has_a011043) {
-               dev_err(&bus->dev,
+               dev_dbg(&bus->dev,
                        "Error while reading PHY%d reg at %d.%hhu\n",
                        phy_id, dev_addr, regnum);
                return 0xffff;
-- 
2.25.1