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From: kernel test robot <lkp@intel.com>
To: "Köry Maincent" <kory.maincent@bootlin.com>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	linux-omap@vger.kernel.org
Cc: oe-kbuild-all@lists.linux.dev, Michael Walle <michael@walle.cc>,
	Richard Cochran <richardcochran@gmail.com>,
	Kory Maincent <kory.maincent@bootlin.com>,
	thomas.petazzoni@bootlin.com, Jay Vosburgh <j.vosburgh@gmail.com>,
	Veaceslav Falico <vfalico@gmail.com>,
	Andy Gospodarek <andy@greyhouse.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Joakim Zhang <qiangqing.zhang@nxp.com>,
	Vladimir Oltean <vladimir.oltean@nxp.com>,
	Claudiu Manoil <claudiu.manoil@nxp.com>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	UNGLinuxDriver@microchip.com,
	Grygorii Strashko <grygorii.strashko@ti.com>,
	Andrew Lunn <andrew@lunn.ch>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	Minghao Chi <chi.minghao@zte.com.cn>,
	Jie Wang <wangjie125@huawei.com>,
	Guangbin Huang <huangguangbin2@huawei.com>,
	Wolfram Sang <wsa-dev@sang-engineering.com>,
	Wang Yufen <wangyufen@huawei.com>,
	Alexandru Tachici <alexandru.tachici@analog.com>,
	Oleksij Rempel <linux@rempel-privat.de>
Subject: Re: [PATCH v2 3/4] net: Let the active time stamping layer be selectable.
Date: Sat, 4 Mar 2023 02:54:30 +0800	[thread overview]
Message-ID: <202303040219.nmNWbGrY-lkp@intel.com> (raw)
In-Reply-To: <20230303164248.499286-4-kory.maincent@bootlin.com>

Hi Köry,

I love your patch! Perhaps something to improve:

[auto build test WARNING on v6.2]
[also build test WARNING on next-20230303]
[cannot apply to net/master net-next/master horms-ipvs/master linus/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/K-ry-Maincent/net-ethtool-Refactor-identical-get_ts_info-implementations/20230304-004527
patch link:    https://lore.kernel.org/r/20230303164248.499286-4-kory.maincent%40bootlin.com
patch subject: [PATCH v2 3/4] net: Let the active time stamping layer be selectable.
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230304/202303040219.nmNWbGrY-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/00a0656f9b222cfeb7c1253a4a2771b1f63b5c9b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review K-ry-Maincent/net-ethtool-Refactor-identical-get_ts_info-implementations/20230304-004527
        git checkout 00a0656f9b222cfeb7c1253a4a2771b1f63b5c9b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash net/core/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303040219.nmNWbGrY-lkp@intel.com/

All warnings (new ones prefixed by >>):

   net/core/net-sysfs.c: In function 'available_timestamping_providers_show':
   net/core/net-sysfs.c:627:35: warning: variable 'ops' set but not used [-Wunused-but-set-variable]
     627 |         const struct ethtool_ops *ops;
         |                                   ^~~
   net/core/net-sysfs.c: In function 'current_timestamping_provider_show':
>> net/core/net-sysfs.c:659:28: warning: variable 'phydev' set but not used [-Wunused-but-set-variable]
     659 |         struct phy_device *phydev;
         |                            ^~~~~~
   net/core/net-sysfs.c:657:35: warning: variable 'ops' set but not used [-Wunused-but-set-variable]
     657 |         const struct ethtool_ops *ops;
         |                                   ^~~


vim +/phydev +659 net/core/net-sysfs.c

90d54e1c6ed12a Richard Cochran 2023-03-03  652  
90d54e1c6ed12a Richard Cochran 2023-03-03  653  static ssize_t current_timestamping_provider_show(struct device *dev,
90d54e1c6ed12a Richard Cochran 2023-03-03  654  						  struct device_attribute *attr,
90d54e1c6ed12a Richard Cochran 2023-03-03  655  						  char *buf)
90d54e1c6ed12a Richard Cochran 2023-03-03  656  {
90d54e1c6ed12a Richard Cochran 2023-03-03  657  	const struct ethtool_ops *ops;
90d54e1c6ed12a Richard Cochran 2023-03-03  658  	struct net_device *netdev;
90d54e1c6ed12a Richard Cochran 2023-03-03 @659  	struct phy_device *phydev;
90d54e1c6ed12a Richard Cochran 2023-03-03  660  	int ret;
90d54e1c6ed12a Richard Cochran 2023-03-03  661  
90d54e1c6ed12a Richard Cochran 2023-03-03  662  	netdev = to_net_dev(dev);
90d54e1c6ed12a Richard Cochran 2023-03-03  663  	phydev = netdev->phydev;
90d54e1c6ed12a Richard Cochran 2023-03-03  664  	ops = netdev->ethtool_ops;
90d54e1c6ed12a Richard Cochran 2023-03-03  665  
90d54e1c6ed12a Richard Cochran 2023-03-03  666  	if (!rtnl_trylock())
90d54e1c6ed12a Richard Cochran 2023-03-03  667  		return restart_syscall();
90d54e1c6ed12a Richard Cochran 2023-03-03  668  
00a0656f9b222c Richard Cochran 2023-03-03  669  	switch (netdev->selected_timestamping_layer) {
00a0656f9b222c Richard Cochran 2023-03-03  670  	case MAC_TIMESTAMPING:
90d54e1c6ed12a Richard Cochran 2023-03-03  671  		ret = sprintf(buf, "%s\n", "mac");
00a0656f9b222c Richard Cochran 2023-03-03  672  		break;
00a0656f9b222c Richard Cochran 2023-03-03  673  	case PHY_TIMESTAMPING:
00a0656f9b222c Richard Cochran 2023-03-03  674  		ret = sprintf(buf, "%s\n", "phy");
00a0656f9b222c Richard Cochran 2023-03-03  675  		break;
90d54e1c6ed12a Richard Cochran 2023-03-03  676  	}
90d54e1c6ed12a Richard Cochran 2023-03-03  677  
90d54e1c6ed12a Richard Cochran 2023-03-03  678  	rtnl_unlock();
90d54e1c6ed12a Richard Cochran 2023-03-03  679  
90d54e1c6ed12a Richard Cochran 2023-03-03  680  	return ret;
90d54e1c6ed12a Richard Cochran 2023-03-03  681  }
00a0656f9b222c Richard Cochran 2023-03-03  682  

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

  reply	other threads:[~2023-03-03 18:55 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-03 16:42 [PATCH v2 0/4] Up until now, there was no way to let the user select the layer at which time stamping occurs. The stack assumed that PHY time stamping is always preferred, but some MAC/PHY combinations were buggy Köry Maincent
2023-03-03 16:42 ` [PATCH v2 1/4] net: ethtool: Refactor identical get_ts_info implementations Köry Maincent
2023-03-03 16:42 ` [PATCH v2 2/4] net: Expose available time stamping layers to user space Köry Maincent
2023-03-03 18:13   ` kernel test robot
2023-03-03 23:52   ` Jakub Kicinski
2023-03-03 23:56   ` Willem de Bruijn
2023-03-03 16:42 ` [PATCH v2 3/4] net: Let the active time stamping layer be selectable Köry Maincent
2023-03-03 18:54   ` kernel test robot [this message]
2023-03-03 23:59   ` Willem de Bruijn
2023-03-04 15:04     ` Andrew Lunn
2023-03-04  3:06   ` kernel test robot
2023-03-04 15:43   ` Andrew Lunn
2023-03-04 16:16     ` Russell King (Oracle)
2023-03-04 19:46       ` Andrew Lunn
2023-03-06 17:55         ` Jakub Kicinski
2023-03-03 16:42 ` [PATCH v2 4/4] net: fix up drivers WRT phy time stamping Köry Maincent
2023-03-03 16:45 ` [PATCH v2 0/4] Up until now, there was no way to let the user select the layer at which time stamping occurs. The stack assumed that PHY time stamping is always preferred, but some MAC/PHY combinations were buggy Köry Maincent

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