# \[PATCH AUTOSEL 4.4 2/6\] net/fsl: quieten expected MDIO access failures - From: Sasha Levin \ - Date: 2020-10-12 19:05:28 - List: netdev - Page: https://ratatoskr.run/netdev/2020/10/6137840 - Thread: https://ratatoskr.run/stable/2020/10/6137839/t.md ```text From: Jamie Iles [ 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 Signed-off-by: Jamie Iles Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- 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 a15b4a97c172d..d407471f3be04 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(®s->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 ```