From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Tue, 25 Jul 2017 15:02:42 +0100
Subject: net: phy: split out PHY speed and duplex string generation
Patch-mainline: v4.14-rc1
Git-commit: da4625ac2637e4e5249dc08a10f8dce7643603d2
References: bsc#1119113 FATE#326472

Other code would like to make use of this, so make the speed and duplex
string generation visible, and place it in a separate file.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/phy/phy-core.c |   49 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/net/phy/phy.c      |   38 ----------------------------------
 include/linux/phy.h        |    3 ++
 3 files changed, 53 insertions(+), 37 deletions(-)

--- a/drivers/net/phy/phy-core.c
+++ b/drivers/net/phy/phy-core.c
@@ -9,6 +9,55 @@
 #include <linux/export.h>
 #include <linux/phy.h>
 
+const char *phy_speed_to_str(int speed)
+{
+	switch (speed) {
+	case SPEED_10:
+		return "10Mbps";
+	case SPEED_100:
+		return "100Mbps";
+	case SPEED_1000:
+		return "1Gbps";
+	case SPEED_2500:
+		return "2.5Gbps";
+	case SPEED_5000:
+		return "5Gbps";
+	case SPEED_10000:
+		return "10Gbps";
+	case SPEED_14000:
+		return "14Gbps";
+	case SPEED_20000:
+		return "20Gbps";
+	case SPEED_25000:
+		return "25Gbps";
+	case SPEED_40000:
+		return "40Gbps";
+	case SPEED_50000:
+		return "50Gbps";
+	case SPEED_56000:
+		return "56Gbps";
+	case SPEED_100000:
+		return "100Gbps";
+	case SPEED_UNKNOWN:
+		return "Unknown";
+	default:
+		return "Unsupported (update phy-core.c)";
+	}
+}
+EXPORT_SYMBOL_GPL(phy_speed_to_str);
+
+const char *phy_duplex_to_str(unsigned int duplex)
+{
+	if (duplex == DUPLEX_HALF)
+		return "Half";
+	if (duplex == DUPLEX_FULL)
+		return "Full";
+	if (duplex == DUPLEX_UNKNOWN)
+		return "Unknown";
+	return "Unsupported (update phy-core.c)";
+}
+EXPORT_SYMBOL_GPL(phy_duplex_to_str);
+
 static void mmd_phy_indirect(struct mii_bus *bus, int phy_addr, int devad,
 			     u16 regnum)
 {
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -38,42 +38,6 @@
 
 #include <asm/irq.h>
 
-static const char *phy_speed_to_str(int speed)
-{
-	switch (speed) {
-	case SPEED_10:
-		return "10Mbps";
-	case SPEED_100:
-		return "100Mbps";
-	case SPEED_1000:
-		return "1Gbps";
-	case SPEED_2500:
-		return "2.5Gbps";
-	case SPEED_5000:
-		return "5Gbps";
-	case SPEED_10000:
-		return "10Gbps";
-	case SPEED_14000:
-		return "14Gbps";
-	case SPEED_20000:
-		return "20Gbps";
-	case SPEED_25000:
-		return "25Gbps";
-	case SPEED_40000:
-		return "40Gbps";
-	case SPEED_50000:
-		return "50Gbps";
-	case SPEED_56000:
-		return "56Gbps";
-	case SPEED_100000:
-		return "100Gbps";
-	case SPEED_UNKNOWN:
-		return "Unknown";
-	default:
-		return "Unsupported (update phy.c)";
-	}
-}
-
 #define PHY_STATE_STR(_state)			\
 	case PHY_##_state:			\
 		return __stringify(_state);	\
@@ -109,7 +73,7 @@ void phy_print_status(struct phy_device
 		netdev_info(phydev->attached_dev,
 			"Link is Up - %s/%s - flow control %s\n",
 			phy_speed_to_str(phydev->speed),
-			DUPLEX_FULL == phydev->duplex ? "Full" : "Half",
+			phy_duplex_to_str(phydev->duplex),
 			phydev->pause ? "rx/tx" : "off");
 	} else	{
 		netdev_info(phydev->attached_dev, "Link is Down\n");
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -667,6 +667,9 @@ struct phy_fixup {
 	int (*run)(struct phy_device *phydev);
 };
 
+const char *phy_speed_to_str(int speed);
+const char *phy_duplex_to_str(unsigned int duplex);
+
 /**
  * phy_read_mmd - Convenience function for reading a register
  * from an MMD on a given PHY.