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Message-ID: <202601181443.vv7qeHyx-lkp@intel.com>
Date: Sun, 18 Jan 2026 14:36:04 +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 v5 v5 2/3] tracing/fprobe: Support comma-separated
symbols and :entry/:exit
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/20260118/202601181443.vv7qeHyx-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/20260118/202601181443.vv7qeHyx-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/202601181443.vv7qeHyx-lkp@intel.com/
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
--
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https://github.com/intel/lkp-tests/wiki
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