tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15_LTS head: 392586c95ba817468e81d14a767a94f3b43a2898 commit: 0295958b5a214d82a0621379590f897cae5bf6cd [835/924] phy: Add driver for GTQUAD BASE for Displayport config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20220218/202202180439.v7JrvRZ2-lk...) compiler: arceb-elf-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/0295958b5a214d82a0621379590f8... git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.15_LTS git checkout 0295958b5a214d82a0621379590f897cae5bf6cd # 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=arc 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 >>): drivers/phy/xilinx/xilinx_dpgtquadphy.c: In function 'xdpgtquad_init': 49 | data |= FIELD_PREP(GT_QUAD_BASE_CH1_CLK_DIV_MASK, | ^~~~~~~~~~ cc1: some warnings being treated as errors vim +/FIELD_PREP +49 drivers/phy/xilinx/xilinx_dpgtquadphy.c 34 35 static int xdpgtquad_init(struct phy *phy) 36 { 37 struct dpgtquadphy_dev *gtquad = phy_get_drvdata(phy); 38 u32 data; 39 40 /* 41 * Unlocking the NPI space so that GT CH1 divider value can be 42 * programmed. This will generate a /20 clk 43 */ 44 writel(GT_QUAD_BASE_CTL_VALUE, 45 gtquad->base + GT_QUAD_BASE_CTL); 46 47 data = readl(gtquad->base + GT_QUAD_BASE_CH1_CLK_DIV_REG); 48 data &= ~GT_QUAD_BASE_CH1_CLK_DIV_MASK; 50 GT_QUAD_BASE_CH1_CLK_DIV_VALUE); 51 writel(data, gtquad->base + GT_QUAD_BASE_CH1_CLK_DIV_REG); 52 53 return 0; 54 } 55 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org