tree: git://git.armlinux.org.uk/~rmk/linux-arm.git zii head: e2b78f9343e58d06b9b8561ade72f4d5aeb43e4f commit: 9d04d7433d7a412ee8ad503394f9db78140caf89 [69/128] net: dsa: mt7530: switch to use phylink_get_linkmodes() config: arm-randconfig-r032-20211119 (attached as .config) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi git remote add arm git://git.armlinux.org.uk/~rmk/linux-arm.git git fetch --no-tags arm zii git checkout 9d04d7433d7a412ee8ad503394f9db78140caf89 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/net/dsa/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/net/dsa/mt7530.c:2420:28: error: use of undeclared identifier 'priv' if (mt7531_is_rgmii_port(priv, port)) { ^ caps = dsa_to_port(ds, port)->phylink_config.mac_capabilities; ~~~~~~~~~~~~~~~~~~~~~ ^ 2 errors generated. vim +2885 drivers/net/dsa/mt7530.c 2875 2876 static void 2877 mt753x_phylink_validate(struct dsa_switch *ds, int port, 2878 unsigned long *supported, 2879 struct phylink_link_state *state) 2880 { 2881 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; 2882 struct mt7530_priv *priv = ds->priv; 2883 u32 caps; 2884 2886 2887 phylink_set_port_modes(mask); 2888 phylink_get_linkmodes(mask, state->interface, caps); 2889 2890 if (state->interface != PHY_INTERFACE_MODE_TRGMII || 2891 !phy_interface_mode_is_8023z(state->interface)) 2892 phylink_set(mask, Autoneg); 2893 2894 linkmode_and(supported, supported, mask); 2895 linkmode_and(state->advertising, state->advertising, mask); 2896 } 2897 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org