Re: [PATCH v3 3/5] net: Let the active time stamping layer be selectable.

[kernel test robot <lkp@xxxxxxxxx>]

Hi Köry,

I love your patch! Perhaps something to improve:

[auto build test WARNING on v6.2]
[cannot apply to robh/for-next horms-ipvs/master net/master net-next/master linus/master v6.3-rc1 next-20230308]
[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/20230308-220453
patch link:    https://lore.kernel.org/r/20230308135936.761794-4-kory.maincent%40bootlin.com
patch subject: [PATCH v3 3/5] net: Let the active time stamping layer be selectable.
config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20230309/202303090220.EervgFvH-lkp@xxxxxxxxx/config)
compiler: riscv64-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/d81a36f239360e7e3b9ca2633e52b3cb12205590
        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/20230308-220453
        git checkout d81a36f239360e7e3b9ca2633e52b3cb12205590
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/net/phy/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202303090220.EervgFvH-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/net/phy/phy_device.c:1384:6: warning: no previous prototype for 'of_set_timestamp' [-Wmissing-prototypes]
    1384 | void of_set_timestamp(struct net_device *netdev, struct phy_device *phydev)
         |      ^~~~~~~~~~~~~~~~


vim +/of_set_timestamp +1384 drivers/net/phy/phy_device.c

  1383	
> 1384	void of_set_timestamp(struct net_device *netdev, struct phy_device *phydev)
  1385	{
  1386		struct device_node *node = phydev->mdio.dev.of_node;
  1387		const struct ethtool_ops *ops = netdev->ethtool_ops;
  1388		const char *s;
  1389		enum timestamping_layer ts_layer = 0;
  1390	
  1391		if (phy_has_hwtstamp(phydev))
  1392			ts_layer = PHY_TIMESTAMPING;
  1393		else if (ops->get_ts_info)
  1394			ts_layer = MAC_TIMESTAMPING;
  1395	
  1396		if (of_property_read_string(node, "preferred-timestamp", &s))
  1397			goto out;
  1398	
  1399		if (!s)
  1400			goto out;
  1401	
  1402		if (phy_has_hwtstamp(phydev) && !strcmp(s, "phy"))
  1403			ts_layer = PHY_TIMESTAMPING;
  1404	
  1405		if (ops->get_ts_info && !strcmp(s, "mac"))
  1406			ts_layer = MAC_TIMESTAMPING;
  1407	
  1408	out:
  1409		netdev->selected_timestamping_layer = ts_layer;
  1410	}
  1411	

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