Hi Thomas, Thank you for the patch! Yet something to improve: [auto build test ERROR on mac80211-next/master] [cannot apply to mac80211/master v5.7-rc3 next-20200429] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Thomas-Pedersen/initial-S1G-defi... base: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master config: arm-exynos_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: net/wireless/trace.o: in function `trace_raw_output_cfg80211_rx_mgmt_khz': arm-linux-gnueabi-ld: net/wireless/trace.o: in function `trace_raw_output_cfg80211_report_obss_beacon_khz': trace.c:(.text+0x56b0): undefined reference to `__aeabi_i2f' arm-linux-gnueabi-ld: trace.c:(.text+0x56bc): undefined reference to `__aeabi_fdiv' arm-linux-gnueabi-ld: trace.c:(.text+0x56c0): undefined reference to `__aeabi_f2d' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org