tree: https://github.com/Xilinx/linux-xlnx master head: 9e2b4d5f785c5246f5c069680371226e47b9f636 commit: 2393692b42120111977addd8b52d26136b0b96ac [439/542] firmware: xilinx: Mark zynqmp_pm_get_meta_header as static inline config: csky-randconfig-r011-20220216 (https://download.01.org/0day-ci/archive/20220217/202202171511.1w5V09vo-lk...) compiler: csky-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/Xilinx/linux-xlnx/commit/2393692b42120111977addd8b52d2... git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx master git checkout 2393692b42120111977addd8b52d26136b0b96ac # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=csky 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 >>): csky-linux-ld: drivers/fpga/fpga-mgr.o: in function `fpga_device_ioctl': fpga-mgr.c:(.text+0x406): undefined reference to `dma_buf_get' csky-linux-ld: drivers/fpga/fpga-mgr.o: in function `fpga_mgr_load': (.text+0x10fe): undefined reference to `dma_buf_attach' csky-linux-ld: (.text+0x11d8): undefined reference to `dma_buf_map_attachment' csky-linux-ld: (.text+0x11dc): undefined reference to `dma_buf_detach' csky-linux-ld: (.text+0x11e0): undefined reference to `dma_buf_put' csky-linux-ld: (.text+0x11e4): undefined reference to `dma_buf_unmap_attachment' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org