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Message-ID: <202511272241.s6tUpIgv-lkp@intel.com>
Date: Thu, 27 Nov 2025 23:00:12 +0800
From: kernel test robot <lkp@...el.com>
To: "Seokwoo Chung (Ryan)" <seokwoo.chung130@...il.com>,
rostedt@...dmis.org, mhiramat@...nel.org, corbet@....net,
shuah@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, mathieu.desnoyers@...icios.com,
linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org,
"Seokwoo Chung (Ryan)" <seokwoo.chung130@...il.com>
Subject: Re: [PATCH v4 2/3] tracing/fprobe: Support comma-separated symbols
and :entry/:exit
Hi Seokwoo,
kernel test robot noticed the following build warnings:
[auto build test WARNING on trace/for-next]
[also build test WARNING on linus/master v6.18-rc7 next-20251127]
[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/20251127-024245
base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link: https://lore.kernel.org/r/20251126184110.72241-3-seokwoo.chung130%40gmail.com
patch subject: [PATCH v4 2/3] tracing/fprobe: Support comma-separated symbols and :entry/:exit
config: x86_64-randconfig-003-20251127 (https://download.01.org/0day-ci/archive/20251127/202511272241.s6tUpIgv-lkp@intel.com/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/20251127/202511272241.s6tUpIgv-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/202511272241.s6tUpIgv-lkp@intel.com/
All warnings (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:286:52: error: initializer element is not constant
286 | __UNIQUE_ID(__PASTE(__addressable_,sym)) = (void *)(uintptr_t)&sym;
| ^
include/linux/compiler.h:289:9: note: in expansion of macro '___ADDRESSABLE'
289 | ___ADDRESSABLE(sym, __section(".discard.addressable"))
| ^~~~~~~~~~~~~~
include/linux/init.h:250:9: note: in expansion of macro '__ADDRESSABLE'
250 | __ADDRESSABLE(fn)
| ^~~~~~~~~~~~~
include/linux/init.h:255:9: note: in expansion of macro '__define_initcall_stub'
255 | __define_initcall_stub(__stub, fn) \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/init.h:268:9: note: in expansion of macro '____define_initcall'
268 | ____define_initcall(fn, \
| ^~~~~~~~~~~~~~~~~~~
include/linux/init.h:274:9: note: in expansion of macro '__unique_initcall'
274 | __unique_initcall(fn, id, __sec, __initcall_id(fn))
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:276:35: note: in expansion of macro '___define_initcall'
276 | #define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id)
| ^~~~~~~~~~~~~~~~~~
include/linux/init.h:294:41: note: in expansion of macro '__define_initcall'
294 | #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 +/trace_fprobe_create +28 kernel/trace/trace_fprobe.c
334e5519c375701 Masami Hiramatsu (Google 2023-06-06 27)
334e5519c375701 Masami Hiramatsu (Google 2023-06-06 @28) static int trace_fprobe_create(const char *raw_command);
334e5519c375701 Masami Hiramatsu (Google 2023-06-06 @29) static int trace_fprobe_show(struct seq_file *m, struct dyn_event *ev);
334e5519c375701 Masami Hiramatsu (Google 2023-06-06 @30) static int trace_fprobe_release(struct dyn_event *ev);
334e5519c375701 Masami Hiramatsu (Google 2023-06-06 31) static bool trace_fprobe_is_busy(struct dyn_event *ev);
334e5519c375701 Masami Hiramatsu (Google 2023-06-06 32) static bool trace_fprobe_match(const char *system, const char *event,
334e5519c375701 Masami Hiramatsu (Google 2023-06-06 33) int argc, const char **argv, struct dyn_event *ev);
334e5519c375701 Masami Hiramatsu (Google 2023-06-06 34)
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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