diff options
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/phy_device.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index f794ff3a10c2..2a2aaa5f3e74 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -1739,13 +1739,17 @@ EXPORT_SYMBOL(genphy_update_link); */ int genphy_read_status(struct phy_device *phydev) { - int adv, lpa, lpagb, err; + int adv, lpa, lpagb, err, old_link = phydev->link; /* Update the link, but return if there was an error */ err = genphy_update_link(phydev); if (err) return err; + /* why bother the PHY if nothing can have changed */ + if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link) + return 0; + phydev->speed = SPEED_UNKNOWN; phydev->duplex = DUPLEX_UNKNOWN; phydev->pause = 0; |