tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.10 head: bf98c1493fb23bfd7e2678498b7e337ce2cd1d53 commit: b0c3669ae8f124715469bae21ac86b25f3c48cf6 [1363/1760] uio: Add the UIO driver for AI engine config: arm-randconfig-r016-20210812 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 10.3.0 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/Xilinx/linux-xlnx/commit/b0c3669ae8f124715469bae21ac86... git remote add xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xlnx xlnx_rebase_v5.10 git checkout b0c3669ae8f124715469bae21ac86b25f3c48cf6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/uio/uio_xilinx_ai_engine.c: In function 'xilinx_ai_engine_debugfs_write': 39 | int irq, ret; | ^~~ vim +/irq +39 drivers/uio/uio_xilinx_ai_engine.c 33 34 static ssize_t xilinx_ai_engine_debugfs_write(struct file *f, 35 const char __user *buf, 36 size_t size, loff_t *pos) 37 { 38 struct irq_domain *irq_sim_domain = file_inode(f)->i_private; 40 41 irq = irq_find_mapping(irq_sim_domain, 1); 42 ret = irq_set_irqchip_state(1, IRQCHIP_STATE_PENDING, true); 43 if (ret) 44 return ret; 45 46 return size; 47 } 48 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org