From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Mon, 20 Jan 2020 22:17:11 +0100
Subject: net: phy: add new version of phy_do_ioctl
Patch-mainline: v5.6-rc1
Git-commit: bbbf8430afe6906abbf879352fe10d24d380e588
References: bsc#1176447

Add a new version of phy_do_ioctl that doesn't check whether net_device
is running. It will typically be used if suitable drivers attach the
PHY in probe already.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/phy/phy.c |   16 +++++++++++++---
 include/linux/phy.h   |    1 +
 2 files changed, 14 insertions(+), 3 deletions(-)

--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -433,18 +433,28 @@ int phy_mii_ioctl(struct phy_device *phy
 EXPORT_SYMBOL(phy_mii_ioctl);
 
 /**
- * phy_do_ioctl_running - generic ndo_do_ioctl implementation
+ * phy_do_ioctl - generic ndo_do_ioctl implementation
  * @dev: the net_device struct
  * @ifr: &struct ifreq for socket ioctl's
  * @cmd: ioctl cmd to execute
  */
-int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd)
+int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
-	if (!netif_running(dev) || !dev->phydev)
+	if (!dev->phydev)
 		return -ENODEV;
 
 	return phy_mii_ioctl(dev->phydev, ifr, cmd);
 }
+EXPORT_SYMBOL(phy_do_ioctl);
+
+/* same as phy_do_ioctl, but ensures that net_device is running */
+int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+	if (!netif_running(dev))
+		return -ENODEV;
+
+	return phy_do_ioctl(dev, ifr, cmd);
+}
 EXPORT_SYMBOL(phy_do_ioctl_running);
 
 void phy_queue_state_machine(struct phy_device *phydev, unsigned long jiffies)
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1216,6 +1216,7 @@ void phy_ethtool_ksettings_get(struct ph
 int phy_ethtool_ksettings_set(struct phy_device *phydev,
 			      const struct ethtool_link_ksettings *cmd);
 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
+int phy_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
 int phy_do_ioctl_running(struct net_device *dev, struct ifreq *ifr, int cmd);
 void phy_request_interrupt(struct phy_device *phydev);
 void phy_free_interrupt(struct phy_device *phydev);