linux-kernel - [PATCH RESEND net-next 1/4] net: phy: Remove fallback to old C45 method

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Message-Id: <20230119130700.440601-2-michael@walle.cc>
Date:   Thu, 19 Jan 2023 14:06:57 +0100
From:   Michael Walle <michael@...le.cc>
To:     Woojung Huh <woojung.huh@...rochip.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Clément Léger <clement.leger@...tlin.com>,
        Andreas Färber <afaerber@...e.de>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Wells Lu <wellslutw@...il.com>,
        Jiawen Wu <jiawenwu@...stnetic.com>,
        Mengyuan Lou <mengyuanlou@...-swift.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Tobias Waldekranz <tobias@...dekranz.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-actions@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Michael Walle <michael@...le.cc>
Subject: [PATCH RESEND net-next 1/4] net: phy: Remove fallback to old C45 method

From: Andrew Lunn <andrew@...n.ch>

Now that all MDIO bus drivers which support C45 implement the c45
specific ops, remove the fallback to the old method.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
Signed-off-by: Michael Walle <michael@...le.cc>
---
 drivers/net/phy/mdio_bus.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 132dd1f905f4..f5e319549f67 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -844,11 +844,6 @@ int __mdiobus_modify_changed(struct mii_bus *bus, int addr, u32 regnum,
 }
 EXPORT_SYMBOL_GPL(__mdiobus_modify_changed);
 
-static u32 mdiobus_c45_addr(int devad, u16 regnum)
-{
-	return MII_ADDR_C45 | devad << MII_DEVADDR_C45_SHIFT | regnum;
-}
-
 /**
  * __mdiobus_c45_read - Unlocked version of the mdiobus_c45_read function
  * @bus: the mii_bus struct
@@ -869,7 +864,7 @@ int __mdiobus_c45_read(struct mii_bus *bus, int addr, int devad, u32 regnum)
 	if (bus->read_c45)
 		retval = bus->read_c45(bus, addr, devad, regnum);
 	else
-		retval = bus->read(bus, addr, mdiobus_c45_addr(devad, regnum));
+		retval = -EOPNOTSUPP;
 
 	trace_mdio_access(bus, 1, addr, regnum, retval, retval);
 	mdiobus_stats_acct(&bus->stats[addr], true, retval);
@@ -900,8 +895,7 @@ int __mdiobus_c45_write(struct mii_bus *bus, int addr, int devad, u32 regnum,
 	if (bus->write_c45)
 		err = bus->write_c45(bus, addr, devad, regnum, val);
 	else
-		err = bus->write(bus, addr, mdiobus_c45_addr(devad, regnum),
-				 val);
+		err = -EOPNOTSUPP;
 
 	trace_mdio_access(bus, 0, addr, regnum, val, err);
 	mdiobus_stats_acct(&bus->stats[addr], false, err);
-- 
2.30.2