Hi Ioana,

I love your patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Ioana-Ciornei/net-phy-add-Lynx-PCS-MDIO-module/20200618-201314
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git cb8e59cc87201af93dfbb6c3dccc8fcad72a09c2
config: i386-allmodconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-13) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All errors (new ones prefixed by >>):

   ld: drivers/net/phy/mdio-lynx-pcs.o: in function `lynx_pcs_config':
   mdio-lynx-pcs.c:(.text+0x47): undefined reference to `mdiobus_write'

quoted

ld: mdio-lynx-pcs.c:(.text+0x68): undefined reference to `mdiobus_modify'
ld: mdio-lynx-pcs.c:(.text+0x79): undefined reference to `phylink_mii_c22_pcs_config'
ld: mdio-lynx-pcs.c:(.text+0xae): undefined reference to `mdiobus_write'

   ld: mdio-lynx-pcs.c:(.text+0xed): undefined reference to `mdiobus_write'
   ld: mdio-lynx-pcs.c:(.text+0xfe): undefined reference to `mdiobus_write'
   ld: drivers/net/phy/mdio-lynx-pcs.o: in function `lynx_pcs_an_restart':
   mdio-lynx-pcs.c:(.text+0x14d): undefined reference to `mdiobus_write'

quoted

ld: mdio-lynx-pcs.c:(.text+0x160): undefined reference to `phylink_mii_c22_pcs_an_restart'

   ld: drivers/net/phy/mdio-lynx-pcs.o: in function `lynx_pcs_link_up':
   mdio-lynx-pcs.c:(.text+0x262): undefined reference to `mdiobus_modify'
   ld: mdio-lynx-pcs.c:(.text+0x2a3): undefined reference to `mdiobus_write'
   ld: drivers/net/phy/mdio-lynx-pcs.o: in function `lynx_pcs_get_state':
   mdio-lynx-pcs.c:(.text+0x2f2): undefined reference to `phylink_mii_c22_pcs_get_state'

quoted

ld: mdio-lynx-pcs.c:(.text+0x32b): undefined reference to `mdiobus_read'

   ld: mdio-lynx-pcs.c:(.text+0x364): undefined reference to `mdiobus_read'

quoted

ld: mdio-lynx-pcs.c:(.text+0x3da): undefined reference to `phy_duplex_to_str'
ld: mdio-lynx-pcs.c:(.text+0x3e5): undefined reference to `phy_speed_to_str'

   ld: mdio-lynx-pcs.c:(.text+0x44c): undefined reference to `mdiobus_read'
   ld: mdio-lynx-pcs.c:(.text+0x45e): undefined reference to `mdiobus_read'

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0-DAY CI Kernel Test Service, Intel Corporation
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