Hi Seokwoo, kernel test robot noticed the following build errors:
[auto build test ERROR on trace/for-next] [also build test ERROR on linus/master v6.19-rc5 next-20260116] [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/Seokwoo-Chung-Ryan/docs-tracing-fprobe-Document-list-filters-and-entry-exit/20260118-092055 base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next patch link: https://lore.kernel.org/r/20260118011815.56516-3-seokwoo.chung130%40gmail.com patch subject: [PATCH v5 v5 2/3] tracing/fprobe: Support comma-separated symbols and :entry/:exit config: x86_64-randconfig-012-20260118 (https://download.01.org/0day-ci/archive/20260118/[email protected]/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260118/[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_fprobe.c: In function 'parse_fprobe_spec': kernel/trace/trace_fprobe.c:1282:12: error: invalid storage class for function 'trace_fprobe_create_internal' 1282 | static int trace_fprobe_create_internal(int argc, const char *argv[], | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1513:12: error: invalid storage class for function 'trace_fprobe_create_cb' 1513 | static int trace_fprobe_create_cb(int argc, const char *argv[]) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1530:12: error: invalid storage class for function 'trace_fprobe_create' 1530 | static int trace_fprobe_create(const char *raw_command) | ^~~~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1535:12: error: invalid storage class for function 'trace_fprobe_release' 1535 | static int trace_fprobe_release(struct dyn_event *ev) | ^~~~~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1545:12: error: invalid storage class for function 'trace_fprobe_show' 1545 | static int trace_fprobe_show(struct seq_file *m, struct dyn_event *ev) | ^~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1572:12: error: invalid storage class for function 'enable_trace_fprobe' 1572 | static int enable_trace_fprobe(struct trace_event_call *call, | ^~~~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1608:12: error: invalid storage class for function 'disable_trace_fprobe' 1608 | static int disable_trace_fprobe(struct trace_event_call *call, | ^~~~~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1653:12: error: invalid storage class for function 'fprobe_register' 1653 | static int fprobe_register(struct trace_event_call *event, | ^~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1683:19: error: invalid storage class for function 'init_fprobe_trace_early' 1683 | static __init int init_fprobe_trace_early(void) | ^~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/fprobe.h:6, from kernel/trace/trace_fprobe.c:8: >> include/linux/compiler.h:284:51: error: initializer element is not constant 284 | __UNIQUE_ID(__PASTE(addressable_, sym)) = (void *)(uintptr_t)&sym; | ^ include/linux/compiler.h:287:9: note: in expansion of macro '___ADDRESSABLE' 287 | ___ADDRESSABLE(sym, __section(".discard.addressable")) | ^~~~~~~~~~~~~~ include/linux/init.h:251:9: note: in expansion of macro '__ADDRESSABLE' 251 | __ADDRESSABLE(fn) | ^~~~~~~~~~~~~ include/linux/init.h:256:9: note: in expansion of macro '__define_initcall_stub' 256 | __define_initcall_stub(__stub, fn) \ | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/init.h:269:9: note: in expansion of macro '____define_initcall' 269 | ____define_initcall(fn, \ | ^~~~~~~~~~~~~~~~~~~ include/linux/init.h:275:9: note: in expansion of macro '__unique_initcall' 275 | __unique_initcall(fn, id, __sec, __initcall_id(fn)) | ^~~~~~~~~~~~~~~~~ include/linux/init.h:277:35: note: in expansion of macro '___define_initcall' 277 | #define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id) | ^~~~~~~~~~~~~~~~~~ include/linux/init.h:295:41: note: in expansion of macro '__define_initcall' 295 | #define core_initcall(fn) __define_initcall(fn, 1) | ^~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1702:1: note: in expansion of macro 'core_initcall' 1702 | core_initcall(init_fprobe_trace_early); | ^~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1702:1: error: expected declaration or statement at end of input kernel/trace/trace_fprobe.c: At top level: kernel/trace/trace_fprobe.c:28:12: warning: 'trace_fprobe_create' used but never defined 28 | static int trace_fprobe_create(const char *raw_command); | ^~~~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:29:12: warning: 'trace_fprobe_show' used but never defined 29 | static int trace_fprobe_show(struct seq_file *m, struct dyn_event *ev); | ^~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:30:12: warning: 'trace_fprobe_release' used but never defined 30 | static int trace_fprobe_release(struct dyn_event *ev); | ^~~~~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:741:12: warning: 'fprobe_register' used but never defined 741 | static int fprobe_register(struct trace_event_call *event, | ^~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1653:12: warning: 'fprobe_register' defined but not used [-Wunused-function] 1653 | static int fprobe_register(struct trace_event_call *event, | ^~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1545:12: warning: 'trace_fprobe_show' defined but not used [-Wunused-function] 1545 | static int trace_fprobe_show(struct seq_file *m, struct dyn_event *ev) | ^~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1535:12: warning: 'trace_fprobe_release' defined but not used [-Wunused-function] 1535 | static int trace_fprobe_release(struct dyn_event *ev) | ^~~~~~~~~~~~~~~~~~~~ kernel/trace/trace_fprobe.c:1530:12: warning: 'trace_fprobe_create' defined but not used [-Wunused-function] 1530 | static int trace_fprobe_create(const char *raw_command) | ^~~~~~~~~~~~~~~~~~~ vim +284 include/linux/compiler.h 0ef8047b737d74 Juergen Gross 2024-11-29 275 7290d58095712a Ard Biesheuvel 2018-08-21 276 /* 7290d58095712a Ard Biesheuvel 2018-08-21 277 * Force the compiler to emit 'sym' as a symbol, so that we can reference 7290d58095712a Ard Biesheuvel 2018-08-21 278 * it from inline assembler. Necessary in case 'sym' could be inlined 7290d58095712a Ard Biesheuvel 2018-08-21 279 * otherwise, or eliminated entirely due to lack of references that are 7290d58095712a Ard Biesheuvel 2018-08-21 280 * visible to the compiler. 7290d58095712a Ard Biesheuvel 2018-08-21 281 */ 92efda8eb15295 Sami Tolvanen 2022-09-08 282 #define ___ADDRESSABLE(sym, __attrs) \ 92efda8eb15295 Sami Tolvanen 2022-09-08 283 static void * __used __attrs \ 9f14f1f91883aa Josh Poimboeuf 2025-09-17 @284 __UNIQUE_ID(__PASTE(addressable_, sym)) = (void *)(uintptr_t)&sym; 0ef8047b737d74 Juergen Gross 2024-11-29 285 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
