tree: https://git.pengutronix.de/git/pza/linux v5.6/topic/pcie-fpga-link-wip head: 020dd50455b9d67bca68173966ce176e0c6fe87e commit: 020dd50455b9d67bca68173966ce176e0c6fe87e [12/12] WIP: pcie-fpga-link: add hardware support config: arm-allmodconfig (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 git checkout 020dd50455b9d67bca68173966ce176e0c6fe87e # save the attached .config to linux build tree GCC_VERSION=9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/media/pci/pcie-fpga-link/pcie-fpga-link.c: In function 'fpl_writeq': 184 | writeq(value, fpl_dev->bar0 + offset); | ^~~~~~ | writeb cc1: some warnings being treated as errors vim +184 drivers/media/pci/pcie-fpga-link/pcie-fpga-link.c 179 180 static inline void fpl_writeq(struct fpl_device *fpl_dev, u32 offset, u64 value) 181 { 182 dev_info(&fpl_dev->pdev->dev, 183 "bar_write_64 offset 0x%08X value 0x%08llX\n", offset, value); 185 } 186 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org