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net: phy: execute genphy_loopback() per default on all PHYs 

The generic loopback is really generic and is defined by the 802.3
standard, we should just mandate that drivers implement a custom
loopback if the generic one cannot work.

Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Oleksij Rempel 2021-04-19 15:01:01 +02:00 committed by David S. Miller
parent e9377a911d
commit f4f86d8d2c
1 changed files with 5 additions and 2 deletions
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7
drivers/net/phy/phy_device.c
View File

@ -1777,6 +1777,9 @@ int phy_loopback(struct phy_device *phydev, bool enable)
struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
int ret = 0;
if (!phydrv)
return -ENODEV;
mutex_lock(&phydev->lock);
if (enable && phydev->loopback_enabled) {
@ -1789,10 +1792,10 @@ int phy_loopback(struct phy_device *phydev, bool enable)
goto out;
}
if (phydev->drv && phydrv->set_loopback)
if (phydrv->set_loopback)
ret = phydrv->set_loopback(phydev, enable);
else
ret = -EOPNOTSUPP;
ret = genphy_loopback(phydev, enable);
if (ret)
goto out;