[PATCH net-next v3 1/6] net: phy: execute genphy_loopback() per default on all PHYs
Oleksij Rempel
o.rempel at pengutronix.de
Mon Apr 19 14:01:01 BST 2021
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 at gmail.com>
Signed-off-by: Oleksij Rempel <o.rempel at pengutronix.de>
---
drivers/net/phy/phy_device.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 73d29fd5e03d..320a3e5cd10a 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -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;
--
2.29.2
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