[Linux-stm32] [PATCH net-next 1/8] net: stmmac: selftests: Do not fail if PHY is not attached

[Jose Abreu]

If a PHY is not attached, we can still run the tests with MAC loopback
mode. Return -EOPNOTSUPP error code in PHY loopback test so that global
status is not a failure.

Signed-off-by: Jose Abreu <Jose.Abreu at synopsys.com>

---
Cc: Giuseppe Cavallaro <peppe.cavallaro at st.com>
Cc: Alexandre Torgue <alexandre.torgue at st.com>
Cc: Jose Abreu <joabreu at synopsys.com>
Cc: "David S. Miller" <davem at davemloft.net>
Cc: Jakub Kicinski <kuba at kernel.org>
Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
Cc: Russell King <linux at armlinux.org.uk>
Cc: Andrew Lunn <andrew at lunn.ch>
Cc: Florian Fainelli <f.fainelli at gmail.com>
Cc: Heiner Kallweit <hkallweit1 at gmail.com>
Cc: netdev at vger.kernel.org
Cc: linux-stm32 at st-md-mailman.stormreply.com
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
index 2aba2673d6c3..586a657be984 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
@@ -380,7 +380,7 @@ static int stmmac_test_phy_loopback(struct stmmac_priv *priv)
 	int ret;
 
 	if (!priv->dev->phydev)
-		return -EBUSY;
+		return -EOPNOTSUPP;
 
 	ret = phy_loopback(priv->dev->phydev, true);
 	if (ret)
-- 
2.7.4