Hi Colin, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on net-next/master] url: https://github.com/0day-ci/linux/commits/Colin-Foster/add-support-for-VSC... base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 3ad4b7c81a992463c29ae130332c217607fe4452 config: arm64-defconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 11.2.0 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 # https://github.com/0day-ci/linux/commit/687241afbab24f5d57bb22b23b4a7c3ad... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Colin-Foster/add-support-for-VSC75XX-control-over-SPI/20211116-143245 git checkout 687241afbab24f5d57bb22b23b4a7c3ad941702e # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash 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 >>): aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_io.o: in function `ocelot_pinctrl_core_probe': ocelot_io.c:(.text+0x384): multiple definition of `ocelot_pinctrl_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4540): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_io.o: in function `microchip_sgpio_core_probe': aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_police.o: in function `ocelot_pinctrl_core_probe': ocelot_police.c:(.text+0x0): multiple definition of `ocelot_pinctrl_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4540): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_police.o: in function `microchip_sgpio_core_probe': ocelot_police.c:(.text+0x14): multiple definition of `microchip_sgpio_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4554): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_vcap.o: in function `ocelot_pinctrl_core_probe': ocelot_vcap.c:(.text+0x28a4): multiple definition of `ocelot_pinctrl_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4540): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_vcap.o: in function `microchip_sgpio_core_probe': ocelot_vcap.c:(.text+0x28c0): multiple definition of `microchip_sgpio_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4554): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_flower.o: in function `ocelot_pinctrl_core_probe': ocelot_flower.c:(.text+0x15e4): multiple definition of `ocelot_pinctrl_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4540): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_flower.o: in function `microchip_sgpio_core_probe': ocelot_flower.c:(.text+0x1600): multiple definition of `microchip_sgpio_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4554): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_ptp.o: in function `ocelot_pinctrl_core_probe': ocelot_ptp.c:(.text+0xc70): multiple definition of `ocelot_pinctrl_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4540): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_ptp.o: in function `microchip_sgpio_core_probe': ocelot_ptp.c:(.text+0xc84): multiple definition of `microchip_sgpio_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4554): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_devlink.o: in function `ocelot_pinctrl_core_probe': ocelot_devlink.c:(.text+0x1534): multiple definition of `ocelot_pinctrl_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4540): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/ocelot_devlink.o: in function `microchip_sgpio_core_probe': ocelot_devlink.c:(.text+0x1550): multiple definition of `microchip_sgpio_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4554): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/vsc7514_regs.o: in function `ocelot_pinctrl_core_probe': vsc7514_regs.c:(.text+0x0): multiple definition of `ocelot_pinctrl_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4540): first defined here aarch64-linux-ld: drivers/net/ethernet/mscc/vsc7514_regs.o: in function `microchip_sgpio_core_probe': vsc7514_regs.c:(.text+0x14): multiple definition of `microchip_sgpio_core_probe'; drivers/net/ethernet/mscc/ocelot.o:ocelot.c:(.text+0x4554): first defined here --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org