Hi Oleksij, kernel test robot noticed the following build warnings: [auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Oleksij-Rempel/ethtool-linkstate-migrate-linkstate-functions-to-support-multi-PHY-setups/20250109-174927 base: net-next/main patch link: https://lore.kernel.org/r/20250109094457.97466-3-o.rempel%40pengutronix.de patch subject: [PATCH net-next v6 2/7] net: ethtool: plumb PHY stats to PHY drivers config: arc-axs101_defconfig (https://download.01.org/0day-ci/archive/20250110/202501101219.XbI23MZj-lkp@xxxxxxxxx/config) compiler: arc-elf-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250110/202501101219.XbI23MZj-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202501101219.XbI23MZj-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/net/phy/phy.c:631: warning: expecting prototype for phy_ethtool_get_phy_stats(). Prototype was for __phy_ethtool_get_phy_stats() instead >> drivers/net/phy/phy.c:650: warning: expecting prototype for phy_ethtool_get_link_ext_stats(). Prototype was for __phy_ethtool_get_link_ext_stats() instead vim +631 drivers/net/phy/phy.c 617 618 /** 619 * phy_ethtool_get_phy_stats - Retrieve standardized PHY statistics 620 * @phydev: Pointer to the PHY device 621 * @phy_stats: Pointer to ethtool_eth_phy_stats structure 622 * @phydev_stats: Pointer to ethtool_phy_stats structure 623 * 624 * Fetches PHY statistics using a kernel-defined interface for consistent 625 * diagnostics. Unlike phy_ethtool_get_stats(), which allows custom stats, 626 * this function enforces a standardized format for better interoperability. 627 */ 628 void __phy_ethtool_get_phy_stats(struct phy_device *phydev, 629 struct ethtool_eth_phy_stats *phy_stats, 630 struct ethtool_phy_stats *phydev_stats) > 631 { 632 if (!phydev->drv || !phydev->drv->get_phy_stats) 633 return; 634 635 mutex_lock(&phydev->lock); 636 phydev->drv->get_phy_stats(phydev, phy_stats, phydev_stats); 637 mutex_unlock(&phydev->lock); 638 } 639 640 /** 641 * phy_ethtool_get_link_ext_stats - Retrieve extended link statistics for a PHY 642 * @phydev: Pointer to the PHY device 643 * @link_stats: Pointer to the structure to store extended link statistics 644 * 645 * Populates the ethtool_link_ext_stats structure with link down event counts 646 * and additional driver-specific link statistics, if available. 647 */ 648 void __phy_ethtool_get_link_ext_stats(struct phy_device *phydev, 649 struct ethtool_link_ext_stats *link_stats) > 650 { 651 link_stats->link_down_events = READ_ONCE(phydev->link_down_events); 652 653 if (!phydev->drv || !phydev->drv->get_link_stats) 654 return; 655 656 mutex_lock(&phydev->lock); 657 phydev->drv->get_link_stats(phydev, link_stats); 658 mutex_unlock(&phydev->lock); 659 } 660 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
