linux-kernel - Re: [PATCH net-next v2 4/8] ethtool: eee: Rework get/set handler for SmartEEE-capable PHYs with non-EEE MACs

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Date:   Tue, 28 Mar 2023 04:45:31 +0800
From:   kernel test robot <lkp@...el.com>
To:     Oleksij Rempel <o.rempel@...gutronix.de>,
        Wei Fang <wei.fang@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>
Cc:     oe-kbuild-all@...ts.linux.dev, netdev@...r.kernel.org,
        Oleksij Rempel <o.rempel@...gutronix.de>,
        kernel@...gutronix.de, linux-kernel@...r.kernel.org,
        Shenwei Wang <shenwei.wang@....com>,
        Clark Wang <xiaoning.wang@....com>,
        NXP Linux Team <linux-imx@....com>,
        Amit Cohen <amcohen@...dia.com>, Gal Pressman <gal@...dia.com>,
        Alexandru Tachici <alexandru.tachici@...log.com>,
        Piergiorgio Beruto <piergiorgio.beruto@...il.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: Re: [PATCH net-next v2 4/8] ethtool: eee: Rework get/set handler for
 SmartEEE-capable PHYs with non-EEE MACs

Hi Oleksij,

I love your patch! Yet something to improve:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Oleksij-Rempel/net-phy-Add-driver-specific-get-set_eee-support-for-non-standard-PHYs/20230327-222630
patch link:    https://lore.kernel.org/r/20230327142202.3754446-5-o.rempel%40pengutronix.de
patch subject: [PATCH net-next v2 4/8] ethtool: eee: Rework get/set handler for SmartEEE-capable PHYs with non-EEE MACs
config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20230328/202303280408.Krp7V753-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/fcee3230c8abb824746744ba0fc39dfd626faa65
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Oleksij-Rempel/net-phy-Add-driver-specific-get-set_eee-support-for-non-standard-PHYs/20230327-222630
        git checkout fcee3230c8abb824746744ba0fc39dfd626faa65
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=um SUBARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=um SUBARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303280408.Krp7V753-lkp@intel.com/

All errors (new ones prefixed by >>):

   /usr/bin/ld: net/ethtool/common.o: in function `__ethtool_get_eee':
>> net/ethtool/common.c:677: undefined reference to `phy_ethtool_get_eee'
   /usr/bin/ld: net/ethtool/common.o: in function `__ethtool_set_eee':
>> net/ethtool/common.c:696: undefined reference to `phy_ethtool_set_eee'
   collect2: error: ld returned 1 exit status


vim +677 net/ethtool/common.c

   663	
   664	int __ethtool_get_eee(struct net_device *dev, struct ethtool_eee *eee)
   665	{
   666		const struct ethtool_ops *ops = dev->ethtool_ops;
   667		struct phy_device *phydev = dev->phydev;
   668		int ret;
   669	
   670		if (ops->get_eee)
   671			ret = ops->get_eee(dev, eee);
   672		else
   673			ret = -EOPNOTSUPP;
   674	
   675		if (ret == -EOPNOTSUPP) {
   676			if (phydev && phydev->is_smart_eee_phy)
 > 677				ret = phy_ethtool_get_eee(phydev, eee);
   678		}
   679	
   680		return ret;
   681	}
   682	
   683	int __ethtool_set_eee(struct net_device *dev, struct ethtool_eee *eee)
   684	{
   685		const struct ethtool_ops *ops = dev->ethtool_ops;
   686		struct phy_device *phydev = dev->phydev;
   687		int ret;
   688	
   689		if (ops->set_eee)
   690			ret = ops->set_eee(dev, eee);
   691		else
   692			ret = -EOPNOTSUPP;
   693	
   694		if (ret == -EOPNOTSUPP) {
   695			if (phydev && phydev->is_smart_eee_phy)
 > 696				ret = phy_ethtool_set_eee(phydev, eee);
   697		}
   698	
   699		return ret;
   700	}
   701	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests