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Message-ID: <202503112205.joXgt8gR-lkp@intel.com>
Date: Tue, 11 Mar 2025 23:03:04 +0800
From: kernel test robot <lkp@...el.com>
To: "Masami Hiramatsu (Google)" <mhiramat@...nel.org>,
Steven Rostedt <rostedt@...dmis.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
Masami Hiramatsu <mhiramat@...nel.org>,
linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
Mark Rutland <mark.rutland@....com>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [PATCH v3] tracing: Show last module text symbols in the
stacktrace
Hi Masami,
kernel test robot noticed the following build errors:
[auto build test ERROR on trace/for-next]
[cannot apply to linus/master v6.14-rc6 next-20250311]
[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-Show-last-module-text-symbols-in-the-stacktrace/20250310-214849
base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link: https://lore.kernel.org/r/174161444691.1063601.16690699136628689205.stgit%40devnote2
patch subject: [PATCH v3] tracing: Show last module text symbols in the stacktrace
config: i386-buildonly-randconfig-004-20250311 (https://download.01.org/0day-ci/archive/20250311/202503112205.joXgt8gR-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250311/202503112205.joXgt8gR-lkp@intel.com/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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202503112205.joXgt8gR-lkp@intel.com/
All errors (new ones prefixed by >>):
kernel/trace/trace.c:6072:38: error: incomplete definition of type 'struct module'
6072 | entry->mod_addr = (unsigned long)mod->mem[MOD_TEXT].base;
| ~~~^
include/linux/printk.h:394:8: note: forward declaration of 'struct module'
394 | struct module;
| ^
kernel/trace/trace.c:6072:44: error: use of undeclared identifier 'MOD_TEXT'
6072 | entry->mod_addr = (unsigned long)mod->mem[MOD_TEXT].base;
| ^
kernel/trace/trace.c:6073:30: error: incomplete definition of type 'struct module'
6073 | strscpy(entry->mod_name, mod->name);
| ~~~^
include/linux/string.h:114:55: note: expanded from macro 'strscpy'
114 | CONCATENATE(__strscpy, COUNT_ARGS(__VA_ARGS__))(dst, src, __VA_ARGS__)
| ^~~
include/linux/string.h:80:21: note: expanded from macro '__strscpy0'
80 | sized_strscpy(dst, src, sizeof(dst) + __must_be_array(dst) + \
| ^~~
include/linux/printk.h:394:8: note: forward declaration of 'struct module'
394 | struct module;
| ^
kernel/trace/trace.c:9411:18: error: incomplete definition of type 'struct module'
9411 | if (!strcmp(mod->name, entry->mod_name)) {
| ~~~^
include/linux/printk.h:394:8: note: forward declaration of 'struct module'
394 | struct module;
| ^
kernel/trace/trace.c:9412:11: error: incomplete definition of type 'struct module'
9412 | if (mod->state == MODULE_STATE_GOING)
| ~~~^
include/linux/printk.h:394:8: note: forward declaration of 'struct module'
394 | struct module;
| ^
>> kernel/trace/trace.c:9412:22: error: use of undeclared identifier 'MODULE_STATE_GOING'
9412 | if (mod->state == MODULE_STATE_GOING)
| ^
kernel/trace/trace.c:9415:41: error: incomplete definition of type 'struct module'
9415 | module_delta[i] = (unsigned long)mod->mem[MOD_TEXT].base
| ~~~^
include/linux/printk.h:394:8: note: forward declaration of 'struct module'
394 | struct module;
| ^
kernel/trace/trace.c:9415:47: error: use of undeclared identifier 'MOD_TEXT'
9415 | module_delta[i] = (unsigned long)mod->mem[MOD_TEXT].base
| ^
8 errors generated.
vim +/MODULE_STATE_GOING +9412 kernel/trace/trace.c
9398
9399 static int make_mod_delta(struct module *mod, void *data)
9400 {
9401 struct trace_scratch *tscratch;
9402 struct trace_mod_entry *entry;
9403 struct trace_array *tr = data;
9404 long *module_delta;
9405 int i;
9406
9407 tscratch = tr->scratch;
9408 module_delta = READ_ONCE(tscratch->module_delta);
9409 for (i = 0; i < tscratch->nr_entries; i++) {
9410 entry = &tscratch->entries[i];
9411 if (!strcmp(mod->name, entry->mod_name)) {
> 9412 if (mod->state == MODULE_STATE_GOING)
9413 module_delta[i] = 0;
9414 else
9415 module_delta[i] = (unsigned long)mod->mem[MOD_TEXT].base
9416 - entry->mod_addr;
9417 break;
9418 }
9419 }
9420 return 0;
9421 }
9422
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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