Hi Calvin,

Thank you for the patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Calvin-Johnson/ACPI-support-for-dpaa2-driver/20210218-133805
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 06b334f08b4f0e53be64160392be4c37db28a413
config: i386-randconfig-a013-20210217 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/5de2672fd295f915600e7391cea819d3dbe7b642
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Calvin-Johnson/ACPI-support-for-dpaa2-driver/20210218-133805
        git checkout 5de2672fd295f915600e7391cea819d3dbe7b642
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   ld: drivers/net/phy/mdio_bus.o: in function `fwnode_mdiobus_register_phy':
>> drivers/net/phy/mdio_bus.c:132: undefined reference to `phy_device_create'


vim +132 drivers/net/phy/mdio_bus.c

   109	
   110	int fwnode_mdiobus_register_phy(struct mii_bus *bus,
   111					struct fwnode_handle *child, u32 addr)
   112	{
   113		struct mii_timestamper *mii_ts = NULL;
   114		struct phy_device *phy;
   115		bool is_c45 = false;
   116		u32 phy_id;
   117		int rc;
   118	
   119		if (is_of_node(child)) {
   120			mii_ts = of_find_mii_timestamper(to_of_node(child));
   121			if (IS_ERR(mii_ts))
   122				return PTR_ERR(mii_ts);
   123		}
   124	
   125		rc = fwnode_property_match_string(child, "compatible", "ethernet-phy-ieee802.3-c45");
   126		if (rc >= 0)
   127			is_c45 = true;
   128	
   129		if (is_c45 || fwnode_get_phy_id(child, &phy_id))
   130			phy = get_phy_device(bus, addr, is_c45);
   131		else
 > 132			phy = phy_device_create(bus, addr, phy_id, 0, NULL);
   133		if (IS_ERR(phy)) {
   134			if (mii_ts)
   135				unregister_mii_timestamper(mii_ts);
   136			return PTR_ERR(phy);
   137		}
   138	
   139		if (is_acpi_node(child)) {
   140			phy->irq = bus->irq[addr];
   141	
   142			/* Associate the fwnode with the device structure so it
   143			 * can be looked up later.
   144			 */
   145			phy->mdio.dev.fwnode = child;
   146	
   147			/* All data is now stored in the phy struct, so register it */
   148			rc = phy_device_register(phy);
   149			if (rc) {
   150				phy_device_free(phy);
   151				fwnode_handle_put(phy->mdio.dev.fwnode);
   152				return rc;
   153			}
   154		} else if (is_of_node(child)) {
   155			rc = of_mdiobus_phy_device_register(bus, phy, to_of_node(child), addr);
   156			if (rc) {
   157				if (mii_ts)
   158					unregister_mii_timestamper(mii_ts);
   159				phy_device_free(phy);
   160				return rc;
   161			}
   162		}
   163	
   164		/* phy->mii_ts may already be defined by the PHY driver. A
   165		 * mii_timestamper probed via the device tree will still have
   166		 * precedence.
   167		 */
   168		if (mii_ts)
   169			phy->mii_ts = mii_ts;
   170		return 0;
   171	}
   172	EXPORT_SYMBOL(fwnode_mdiobus_register_phy);
   173	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org