On Sun, 9 Nov 2025 21:27:50 +0800 kernel test robot <[email protected]> wrote:
> Hi Masami, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on trace/for-next] > [also build test ERROR on next-20251107] > [cannot apply to linus/master v6.18-rc4] > [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/Masami-Hiramatsu-Google/tracing-Report-wrong-dynamic-event-command/20251108-185823 > base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace > for-next > patch link: > https://lore.kernel.org/r/176259938768.261465.10714633393722227911.stgit%40devnote2 > patch subject: [PATCH] tracing: Report wrong dynamic event command > config: s390-randconfig-002-20251109 > (https://download.01.org/0day-ci/archive/20251109/[email protected]/config) > compiler: s390-linux-gcc (GCC) 8.5.0 > reproduce (this is a W=1 build): > (https://download.01.org/0day-ci/archive/20251109/[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 >>): > > s390-linux-ld: kernel/trace/trace_dynevent.o: in function > `create_dyn_event': > >> kernel/trace/trace_dynevent.c:150: undefined reference to > >> `trace_probe_log_init' > >> s390-linux-ld: kernel/trace/trace_dynevent.c:151: undefined reference to > >> `__trace_probe_log_err' > >> s390-linux-ld: kernel/trace/trace_dynevent.c:152: undefined reference to > >> `trace_probe_log_clear' Oops, it is because CONFIG_DYNAMIC_EVENTS=y but CONFIG_PROBE_EVENTS=n. Hmm, it seems better to make "trace_probe_log.{c,h}" for this purpose. Thank you, > > Kconfig warnings: (for reference only) > WARNING: unmet direct dependencies detected for I2C_K1 > Depends on [n]: I2C [=y] && HAS_IOMEM [=y] && (ARCH_SPACEMIT || > COMPILE_TEST [=y]) && OF [=n] > Selected by [y]: > - MFD_SPACEMIT_P1 [=y] && HAS_IOMEM [=y] && (ARCH_SPACEMIT || COMPILE_TEST > [=y]) && I2C [=y] > > > vim +150 kernel/trace/trace_dynevent.c > > 133 > 134 static int create_dyn_event(const char *raw_command) > 135 { > 136 struct dyn_event_operations *ops; > 137 int ret = -ENODEV; > 138 > 139 if (raw_command[0] == '-' || raw_command[0] == '!') > 140 return dyn_event_release(raw_command, NULL); > 141 > 142 mutex_lock(&dyn_event_ops_mutex); > 143 list_for_each_entry(ops, &dyn_event_ops_list, list) { > 144 ret = ops->create(raw_command); > 145 if (!ret || ret != -ECANCELED) > 146 break; > 147 } > 148 if (ret == -ECANCELED) { > 149 /* Wrong dynamic event. Leave an error message. > */ > > 150 trace_probe_log_init("dynevent", 1, > &raw_command); > > 151 trace_probe_log_err(0, BAD_DYN_EVENT); > > 152 trace_probe_log_clear(); > 153 ret = -EINVAL; > 154 } > 155 > 156 mutex_unlock(&dyn_event_ops_mutex); > 157 > 158 return ret; > 159 } > 160 > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki -- Masami Hiramatsu (Google) <[email protected]>
