Hi Steven, kernel test robot noticed the following build errors:
[auto build test ERROR on trace/for-next] [cannot apply to linus/master v6.18-rc4 next-20251106] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Steven-Rostedt/tracing-Remove-dummy-options-and-flags/20251106-010511 base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next patch link: https://lore.kernel.org/r/20251105161935.545400234%40kernel.org patch subject: [PATCH 3/5] tracing: Have tracer option be instance specific config: i386-buildonly-randconfig-004-20251106 (https://download.01.org/0day-ci/archive/20251106/[email protected]/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251106/[email protected]/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): >> kernel/trace/trace.c:2174:23: error: redefinition of 'type' with a different >> type: 'struct trace_tracer *' vs 'struct tracer *' 2174 | struct trace_tracer *type = tracers->trace; | ^ kernel/trace/trace.c:2171:47: note: previous definition is here 2171 | static int run_tracer_selftest(struct tracer *type) | ^ >> kernel/trace/trace.c:2174:30: error: use of undeclared identifier 'tracers' 2174 | struct trace_tracer *type = tracers->trace; | ^ kernel/trace/trace.c:5172:17: warning: variable 'trace' set but not used [-Wunused-but-set-variable] 5172 | struct tracer *trace; | ^ 1 warning and 2 errors generated. vim +2174 kernel/trace/trace.c 2170 2171 static int run_tracer_selftest(struct tracer *type) 2172 { 2173 struct trace_array *tr = &global_trace; > 2174 struct trace_tracer *type = tracers->trace; 2175 struct tracer_flags *saved_flags = tr->current_trace_flags; 2176 struct tracer_flags *flags; 2177 struct tracer *saved_tracer = tr->current_trace; 2178 int ret; 2179 2180 if (!type->selftest || tracing_selftest_disabled) 2181 return 0; 2182 2183 /* 2184 * If a tracer registers early in boot up (before scheduling is 2185 * initialized and such), then do not run its selftests yet. 2186 * Instead, run it a little later in the boot process. 2187 */ 2188 if (!selftests_can_run) 2189 return save_selftest(type); 2190 2191 if (!tracing_is_on()) { 2192 pr_warn("Selftest for tracer %s skipped due to tracing disabled\n", 2193 type->name); 2194 return 0; 2195 } 2196 2197 /* 2198 * Run a selftest on this tracer. 2199 * Here we reset the trace buffer, and set the current 2200 * tracer to be this tracer. The tracer can then run some 2201 * internal tracing to verify that everything is in order. 2202 * If we fail, we do not register this tracer. 2203 */ 2204 tracing_reset_online_cpus(&tr->array_buffer); 2205 2206 tr->current_trace = type; 2207 tr->current_trace_flags = type->flags ? : type->default_flags; 2208 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
