[kbuild-all] Re: [PATCH] clk: add sys node to disable unused clk

Hi Zhipeng, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on clk/clk-next] [also build test WARNING on v5.14-rc6 next-20210816] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Zhipeng-Wang/clk-add-sys-node-to... base: https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next config: arc-randconfig-r011-20210812 (attached as .config) compiler: arc-elf-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/0day-ci/linux/commit/166d814a2157788c7f7c7224b08ccdca8... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Zhipeng-Wang/clk-add-sys-node-to-disable-unused-clk/20210813-094034 git checkout 166d814a2157788c7f7c7224b08ccdca8aaed7a0 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arc 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/clk/clk.c: In function 'creat_sys_clk_unused': 1382 | sysfs_create_groups(clk_ctrl_kobj, clk_ctrl_attr_groups); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/perf_event.h:25, from include/linux/trace_events.h:10, from include/trace/trace_events.h:21, from include/trace/define_trace.h:102, from include/trace/events/clk.h:270, from drivers/clk/clk.c:96: At top level: arch/arc/include/asm/perf_event.h:126:23: warning: 'arc_pmu_cache_map' defined but not used [-Wunused-const-variable=] 126 | static const unsigned arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { | ^~~~~~~~~~~~~~~~~ arch/arc/include/asm/perf_event.h:91:27: warning: 'arc_pmu_ev_hw_map' defined but not used [-Wunused-const-variable=] 91 | static const char * const arc_pmu_ev_hw_map[] = { | ^~~~~~~~~~~~~~~~~ vim +1382 drivers/clk/clk.c 1377 1378 static int __init creat_sys_clk_unused(void) 1379 { 1380 struct kobject *clk_ctrl_kobj = kobject_create_and_add("clk_ctrl", NULL); 1381 1383 1384 return 0; 1385 } 1386 late_initcall_sync(creat_sys_clk_unused); 1387 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org