Messages in this thread | | | Date | Tue, 12 Jul 2022 12:38:44 +0800 | From | kernel test robot <> | Subject | kernel/trace/trace_osnoise.c:131:1: sparse: sparse: symbol '__pcpu_scope_per_cpu_timerlat_var' was not declared. Should it be static? |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 5a29232d870d9e63fe5ff30b081be6ea7cc2465d commit: a955d7eac1779b437ceb24fc352026a2cbcec140 trace: Add timerlat tracer date: 1 year, 1 month ago config: s390-randconfig-s032-20220712 (https://download.01.org/0day-ci/archive/20220712/202207121205.3WDa90OI-lkp@intel.com/config) compiler: s390-linux-gcc (GCC) 11.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a955d7eac1779b437ceb24fc352026a2cbcec140 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout a955d7eac1779b437ceb24fc352026a2cbcec140 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=s390 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>) kernel/trace/trace_osnoise.c:108:1: sparse: sparse: symbol '__pcpu_scope_per_cpu_osnoise_var' was not declared. Should it be static? >> kernel/trace/trace_osnoise.c:131:1: sparse: sparse: symbol '__pcpu_scope_per_cpu_timerlat_var' was not declared. Should it be static? kernel/trace/trace_osnoise.c:223:14: sparse: sparse: symbol 'interface_lock' was not declared. Should it be static? kernel/trace/trace_osnoise.c:657:6: sparse: sparse: symbol 'osnoise_trace_irq_entry' was not declared. Should it be static? kernel/trace/trace_osnoise.c:680:6: sparse: sparse: symbol 'osnoise_trace_irq_exit' was not declared. Should it be static? kernel/trace/trace_osnoise.c:739:5: sparse: sparse: symbol 'hook_irq_events' was not declared. Should it be static? kernel/trace/trace_osnoise.c:771:6: sparse: sparse: symbol 'unhook_irq_events' was not declared. Should it be static? kernel/trace/trace_osnoise.c:788:6: sparse: sparse: symbol 'trace_softirq_entry_callback' was not declared. Should it be static? kernel/trace/trace_osnoise.c:811:6: sparse: sparse: symbol 'trace_softirq_exit_callback' was not declared. Should it be static? kernel/trace/trace_osnoise.c:953:1: sparse: sparse: symbol 'trace_sched_switch_callback' was not declared. Should it be static? kernel/trace/trace_osnoise.c:971:5: sparse: sparse: symbol 'hook_thread_events' was not declared. Should it be static? kernel/trace/trace_osnoise.c:988:6: sparse: sparse: symbol 'unhook_thread_events' was not declared. Should it be static? kernel/trace/trace_osnoise.c:1000:6: sparse: sparse: symbol 'save_osn_sample_stats' was not declared. Should it be static? kernel/trace/trace_osnoise.c:1015:6: sparse: sparse: symbol 'diff_osn_sample_stats' was not declared. Should it be static? kernel/trace/trace_osnoise.c:1657:5: sparse: sparse: symbol 'timerlat_min_period' was not declared. Should it be static? kernel/trace/trace_osnoise.c:1658:5: sparse: sparse: symbol 'timerlat_max_period' was not declared. Should it be static?
vim +/__pcpu_scope_per_cpu_timerlat_var +131 kernel/trace/trace_osnoise.c
112 113 /* 114 * osnoise_unregister_instance - unregister a registered trace instance 115 * 116 * Remove the trace_array *tr from the list of instances running 117 * osnoise/timerlat tracers. 118 */ 119 static void osnoise_unregister_instance(struct trace_array *tr) 120 { 121 struct osnoise_instance *inst; 122 int found = 0; 123 124 /* 125 * register/unregister serialization is provided by trace's 126 * trace_types_lock. 127 */ 128 lockdep_assert_held(&trace_types_lock); 129 130 list_for_each_entry_rcu(inst, &osnoise_instances, list) { > 131 if (inst->tr == tr) { 132 list_del_rcu(&inst->list); 133 found = 1; 134 break; 135 } 136 } 137 138 if (!found) 139 return; 140 141 kvfree_rcu(inst); 142 } 143
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