From: Michael Walle <michael@walle.cc>
Date: Thu, 7 Nov 2019 09:39:37 +0100
Subject: enetc: add ioctl() support for PHY-related ops
Git-commit: a613bafec516bcca3658d054bdc339008d20ac8a
Patch-mainline: v5.5-rc1
References: jsc#SLE-9316
If there is an attached PHY try to handle the requested ioctl with its
handler, which allows the userspace to access PHY registers, for
example. This will make mii-diag and similar tools work.
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/net/ethernet/freescale/enetc/enetc.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c
index b6ff89307409..25af207f1962 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -1599,7 +1599,10 @@ int enetc_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
if (cmd == SIOCGHWTSTAMP)
return enetc_hwtstamp_get(ndev, rq);
#endif
- return -EINVAL;
+
+ if (!ndev->phydev)
+ return -EINVAL;
+ return phy_mii_ioctl(ndev->phydev, rq, cmd);
}
int enetc_alloc_msix(struct enetc_ndev_priv *priv)
--
2.16.4