netdev - Re: [PATCH net-next v2 7/7] ethtool: add compat for devlink info

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Date:   Fri, 1 Feb 2019 03:05:52 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>
Cc:     kbuild-all@...org, davem@...emloft.net, netdev@...r.kernel.org,
        oss-drivers@...ronome.com, jiri@...nulli.us, andrew@...n.ch,
        f.fainelli@...il.com, mkubecek@...e.cz, eugenem@...com,
        jonathan.lemon@...il.com,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: Re: [PATCH net-next v2 7/7] ethtool: add compat for devlink info

Hi Jakub,

I love your patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Jakub-Kicinski/devlink-add-device-driver-information-API/20190131-222221
config: i386-randconfig-n0-01300126 (attached as .config)
compiler: gcc-8 (Debian 8.2.0-15) 8.2.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   ld: net/core/ethtool.o: in function `ethtool_get_drvinfo':
>> net/core/ethtool.c:809: undefined reference to `devlink_compat_running_versions'

vim +809 net/core/ethtool.c

   760	
   761	static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
   762							  void __user *useraddr)
   763	{
   764		struct ethtool_drvinfo info;
   765		const struct ethtool_ops *ops = dev->ethtool_ops;
   766	
   767		memset(&info, 0, sizeof(info));
   768		info.cmd = ETHTOOL_GDRVINFO;
   769		if (ops->get_drvinfo) {
   770			ops->get_drvinfo(dev, &info);
   771		} else if (dev->dev.parent && dev->dev.parent->driver) {
   772			strlcpy(info.bus_info, dev_name(dev->dev.parent),
   773				sizeof(info.bus_info));
   774			strlcpy(info.driver, dev->dev.parent->driver->name,
   775				sizeof(info.driver));
   776		} else {
   777			return -EOPNOTSUPP;
   778		}
   779	
   780		/*
   781		 * this method of obtaining string set info is deprecated;
   782		 * Use ETHTOOL_GSSET_INFO instead.
   783		 */
   784		if (ops->get_sset_count) {
   785			int rc;
   786	
   787			rc = ops->get_sset_count(dev, ETH_SS_TEST);
   788			if (rc >= 0)
   789				info.testinfo_len = rc;
   790			rc = ops->get_sset_count(dev, ETH_SS_STATS);
   791			if (rc >= 0)
   792				info.n_stats = rc;
   793			rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
   794			if (rc >= 0)
   795				info.n_priv_flags = rc;
   796		}
   797		if (ops->get_regs_len) {
   798			int ret = ops->get_regs_len(dev);
   799	
   800			if (ret > 0)
   801				info.regdump_len = ret;
   802		}
   803	
   804		if (ops->get_eeprom_len)
   805			info.eedump_len = ops->get_eeprom_len(dev);
   806	
   807		rtnl_unlock();
   808		if (!info.fw_version[0])
 > 809			devlink_compat_running_versions(dev, info.fw_version,
   810							ARRAY_SIZE(info.fw_version));
   811		rtnl_lock();
   812	
   813		if (copy_to_user(useraddr, &info, sizeof(info)))
   814			return -EFAULT;
   815		return 0;
   816	}
   817	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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