Messages in this thread | | | Date | Sat, 27 Nov 2021 02:01:44 +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: a4849f6000e29235a2707f22e39da6b897bb9543 commit: 498627b4ac85780b9962ed9b5c5abbefd884ef8e trace/osnoise: Fix return value on osnoise_init_hotplug_support date: 5 months ago config: i386-randconfig-s002-20211118 (https://download.01.org/0day-ci/archive/20211127/202111270153.j3tgBvDJ-lkp@intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=498627b4ac85780b9962ed9b5c5abbefd884ef8e git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 498627b4ac85780b9962ed9b5c5abbefd884ef8e # save the config file to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash kernel/trace/
If you fix the issue, kindly add following tag as appropriate 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:1766:5: sparse: sparse: symbol 'timerlat_min_period' was not declared. Should it be static? kernel/trace/trace_osnoise.c:1767:5: 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
bce29ac9ce0bb0b Daniel Bristot de Oliveira 2021-06-22 112 */ bce29ac9ce0bb0b Daniel Bristot de Oliveira 2021-06-22 113 static inline struct osnoise_variables *this_cpu_osn_var(void) bce29ac9ce0bb0b Daniel Bristot de Oliveira 2021-06-22 114 { bce29ac9ce0bb0b Daniel Bristot de Oliveira 2021-06-22 115 return this_cpu_ptr(&per_cpu_osnoise_var); bce29ac9ce0bb0b Daniel Bristot de Oliveira 2021-06-22 116 } bce29ac9ce0bb0b Daniel Bristot de Oliveira 2021-06-22 117 a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 118 #ifdef CONFIG_TIMERLAT_TRACER bce29ac9ce0bb0b Daniel Bristot de Oliveira 2021-06-22 119 /* a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 120 * Runtime information for the timer mode. bce29ac9ce0bb0b Daniel Bristot de Oliveira 2021-06-22 121 */ a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 122 struct timerlat_variables { a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 123 struct task_struct *kthread; a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 124 struct hrtimer timer; a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 125 u64 rel_period; a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 126 u64 abs_period; a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 127 bool tracing_thread; a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 128 u64 count; a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 129 }; a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 130 a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 @131 DEFINE_PER_CPU(struct timerlat_variables, per_cpu_timerlat_var); a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 132 a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 133 /* a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 134 * this_cpu_tmr_var - Return the per-cpu timerlat_variables on its relative CPU a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 135 */ a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 136 static inline struct timerlat_variables *this_cpu_tmr_var(void) bce29ac9ce0bb0b Daniel Bristot de Oliveira 2021-06-22 137 { a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 138 return this_cpu_ptr(&per_cpu_timerlat_var); a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 139 } a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 140 a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 141 /* a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 142 * tlat_var_reset - Reset the values of the given timerlat_variables a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 143 */ a955d7eac1779b4 Daniel Bristot de Oliveira 2021-06-22 144 static inline void tlat_var_reset(void)
:::::: The code at line 131 was first introduced by commit :::::: a955d7eac1779b437ceb24fc352026a2cbcec140 trace: Add timerlat tracer
:::::: TO: Daniel Bristot de Oliveira <bristot@redhat.com> :::::: CC: Steven Rostedt (VMware) <rostedt@goodmis.org>
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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