Hi "Marek, 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/Marek-Beh-n/Add-support-for-LEDs-on-Marvell-PHYs/20200908-080520 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 81365af13a5630673c49bfad9b24cf415e9576f6 config: arm-randconfig-r036-20200909 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 8893d0816ccdf8998d2e21b5430e9d6abe7ef465) 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: devm_led_classdev_register_ext >>> referenced by phy_led.c:63 (drivers/net/phy/phy_led.c:63) >>> net/phy/phy_led.o:(of_phy_register_leds) in archive drivers/built-in.a --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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