Hi Andre, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 89698becf06d341a700913c3d89ce2a914af69a2 commit: e8b6c54f6d57822e228027d41a1edb317034a08c net: xilinx: temac: Relax Kconfig dependencies date: 1 year, 1 month ago config: um-randconfig-r026-20210413 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout e8b6c54f6d57822e228027d41a1edb317034a08c # save the attached .config to linux build tree make W=1 ARCH=um 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 >>): /usr/bin/ld: drivers/net/ethernet/xilinx/ll_temac_main.o: in function `temac_probe': ll_temac_main.c:(.text+0xe9d): undefined reference to `devm_ioremap' /usr/bin/ld: ll_temac_main.c:(.text+0x1159): undefined reference to `devm_ioremap' /usr/bin/ld: drivers/misc/altera-stapl/altera-lpt.o:(.altinstructions+0x8): undefined reference to `X86_FEATURE_XMM2' /usr/bin/ld: drivers/misc/altera-stapl/altera-lpt.o:(.altinstructions+0x15): undefined reference to `X86_FEATURE_XMM' /usr/bin/ld: drivers/misc/altera-stapl/altera-lpt.o:(.altinstructions+0x22): undefined reference to `X86_FEATURE_XMM' /usr/bin/ld: drivers/misc/altera-stapl/altera-lpt.o:(.altinstructions+0x2f): undefined reference to `X86_FEATURE_XMM2' /usr/bin/ld: drivers/misc/altera-stapl/altera-lpt.o:(.altinstructions+0x3c): undefined reference to `X86_FEATURE_XMM' /usr/bin/ld: drivers/misc/altera-stapl/altera-lpt.o:(.altinstructions+0x49): undefined reference to `X86_FEATURE_XMM' collect2: error: ld returned 1 exit status --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org