Hi Nikita, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ee1703cda8dc777e937dec172da55beaf1a74919 commit: 9645ccc7bd7a16cd73c3be9dee70cd702b03be37 ep93xx: clock: convert in-place to COMMON_CLK date: 4 weeks ago config: arm-randconfig-r005-20211116 (attached as .config) compiler: arm-linux-gnueabi-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 9645ccc7bd7a16cd73c3be9dee70cd702b03be37 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash drivers/clk/ drivers/gpu/drm/tegra/ 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/gpu/drm/tegra/dc.c: In function 'tegra_crtc_update_memory_bandwidth': drivers/gpu/drm/tegra/dc.c:1848:53: warning: variable 'new_dc_state' set but not used [-Wunused-but-set-variable] 1848 | const struct tegra_dc_state *old_dc_state, *new_dc_state; | ^~~~~~~~~~~~ drivers/gpu/drm/tegra/dc.c:1848:38: warning: variable 'old_dc_state' set but not used [-Wunused-but-set-variable] 1848 | const struct tegra_dc_state *old_dc_state, *new_dc_state; | ^~~~~~~~~~~~ drivers/gpu/drm/tegra/dc.c: In function 'tegra_crtc_calculate_memory_bandwidth': 2228 | const struct drm_crtc_state *old_state; | ^~~~~~~~~ vim +64 drivers/clk/clk-gemini.c 846423f96721d5 Linus Walleij 2017-06-21 51 846423f96721d5 Linus Walleij 2017-06-21 52 /** 846423f96721d5 Linus Walleij 2017-06-21 53 * struct gemini_data_data - Gemini gated clocks 846423f96721d5 Linus Walleij 2017-06-21 54 * @bit_idx: the bit used to gate this clock in the clock register 846423f96721d5 Linus Walleij 2017-06-21 55 * @name: the clock name 846423f96721d5 Linus Walleij 2017-06-21 56 * @parent_name: the name of the parent clock 846423f96721d5 Linus Walleij 2017-06-21 57 * @flags: standard clock framework flags 846423f96721d5 Linus Walleij 2017-06-21 58 */ 846423f96721d5 Linus Walleij 2017-06-21 59 struct gemini_gate_data { 846423f96721d5 Linus Walleij 2017-06-21 60 u8 bit_idx; 846423f96721d5 Linus Walleij 2017-06-21 61 const char *name; 846423f96721d5 Linus Walleij 2017-06-21 62 const char *parent_name; 846423f96721d5 Linus Walleij 2017-06-21 63 unsigned long flags; 846423f96721d5 Linus Walleij 2017-06-21 @64 }; 846423f96721d5 Linus Walleij 2017-06-21 65 :::::: The code at line 64 was first introduced by commit :::::: 846423f96721d5c1c2fad6b43b3f1359002907d5 clk: Add Gemini SoC clock controller :::::: TO: Linus Walleij <linus.walleij(a)linaro.org&gt; :::::: CC: Stephen Boyd <sboyd(a)codeaurora.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org