tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 129af770823407ee115a56c69a04b440fd2fbe61 commit: b56c68f705cad0cff61fbe132c66ced2c737c65c [6635/10565] ftrace: Add sample with custom ops config: x86_64-randconfig-s043-20230206 (https://download.01.org/0day-ci/archive/20230206/202302062223.7F7gv80M-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=b56c68f705cad0cff61fbe132c66ced2c737c65c git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout b56c68f705cad0cff61fbe132c66ced2c737c65c # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash samples/ftrace/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> samples/ftrace/ftrace-ops.c:15:14: sparse: sparse: symbol 'nr_function_calls' was not declared. Should it be static? >> samples/ftrace/ftrace-ops.c:24:14: sparse: sparse: symbol 'nr_ops_relevant' was not declared. Should it be static? >> samples/ftrace/ftrace-ops.c:33:14: sparse: sparse: symbol 'nr_ops_irrelevant' was not declared. Should it be static? >> samples/ftrace/ftrace-ops.c:45:6: sparse: sparse: symbol 'assist_recursion' was not declared. Should it be static? >> samples/ftrace/ftrace-ops.c:49:6: sparse: sparse: symbol 'assist_rcu' was not declared. Should it be static? >> samples/ftrace/ftrace-ops.c:117:19: sparse: sparse: symbol 'ops_relevant' was not declared. Should it be static? >> samples/ftrace/ftrace-ops.c:118:19: sparse: sparse: symbol 'ops_irrelevant' was not declared. Should it be static? >> samples/ftrace/ftrace-ops.c:166:15: sparse: sparse: symbol 'tracer_relevant' was not declared. Should it be static? >> samples/ftrace/ftrace-ops.c:167:15: sparse: sparse: symbol 'tracer_irrelevant' was not declared. Should it be static? -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests