* include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used
@ 2022-05-09 18:08 kernel test robot
2022-05-10 13:44 ` Steven Rostedt
0 siblings, 1 reply; 5+ messages in thread
From: kernel test robot @ 2022-05-09 18:08 UTC (permalink / raw)
To: Steven Rostedt (Google); +Cc: kbuild-all, linux-kernel
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9be9ed2612b5aedb52a2c240edb1630b6b743cb6
commit: af6b9668e85ffd1502aada8036ccbf4dbd481708 tracing: Move the defines to create TRACE_EVENTS into their own files
date: 8 weeks ago
config: i386-randconfig-s002-20220509 (https://download.01.org/0day-ci/archive/20220510/202205100202.Ag0S76wP-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=af6b9668e85ffd1502aada8036ccbf4dbd481708
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout af6b9668e85ffd1502aada8036ccbf4dbd481708
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from include/trace/trace_events.h:27,
from include/trace/define_trace.h:102,
from arch/x86/include/asm/trace/irq_vectors.h:383,
from arch/x86/kernel/irq.c:27:
>> include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used [-Wunused-const-variable=]
2 | #define __app__(x, y) str__##x##y
| ^~~~~
include/trace/stages/init.h:3:21: note: in expansion of macro '__app__'
3 | #define __app(x, y) __app__(x, y)
| ^~~~~~~
include/trace/stages/init.h:5:29: note: in expansion of macro '__app'
5 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)
| ^~~~~
include/trace/stages/init.h:8:27: note: in expansion of macro 'TRACE_SYSTEM_STRING'
8 | static const char TRACE_SYSTEM_STRING[] = \
| ^~~~~~~~~~~~~~~~~~~
include/trace/stages/init.h:11:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR'
11 | TRACE_MAKE_SYSTEM_STR();
| ^~~~~~~~~~~~~~~~~~~~~
vim +/str__irq_vectors__trace_system_name +2 include/trace/stages/init.h
> 2 #define __app__(x, y) str__##x##y
3 #define __app(x, y) __app__(x, y)
4
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used
2022-05-09 18:08 include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used kernel test robot
@ 2022-05-10 13:44 ` Steven Rostedt
2022-05-10 13:48 ` Steven Rostedt
0 siblings, 1 reply; 5+ messages in thread
From: Steven Rostedt @ 2022-05-10 13:44 UTC (permalink / raw)
To: kernel test robot; +Cc: kbuild-all, linux-kernel
On Tue, 10 May 2022 02:08:23 +0800
kernel test robot <lkp@intel.com> wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 9be9ed2612b5aedb52a2c240edb1630b6b743cb6
> commit: af6b9668e85ffd1502aada8036ccbf4dbd481708 tracing: Move the defines to create TRACE_EVENTS into their own files
> date: 8 weeks ago
> config: i386-randconfig-s002-20220509 (https://download.01.org/0day-ci/archive/20220510/202205100202.Ag0S76wP-lkp@intel.com/config)
> compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
> reproduce:
> # apt-get install sparse
> # sparse version: v0.6.4-dirty
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=af6b9668e85ffd1502aada8036ccbf4dbd481708
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout af6b9668e85ffd1502aada8036ccbf4dbd481708
> # save the config file
> mkdir build_dir && cp config build_dir/.config
> make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> In file included from include/trace/trace_events.h:27,
> from include/trace/define_trace.h:102,
> from arch/x86/include/asm/trace/irq_vectors.h:383,
> from arch/x86/kernel/irq.c:27:
Hmm, when I do:
$ make arch/x86/kernel/irq.i
$ astyle arch/x86/kernel/irq.i
$ grep str__irq_irq_vectors__trace_system_name
static const char str__irq_vectors__trace_system_name[] = "irq_vectors";
static struct trace_event_class __attribute__((__used__)) __attribute__((__section__(".ref.data"))) event_class_x86_irq_vector = { .system = str__irq_vectors__trace_system_name, .fields_array = trace_event_fields_x86_irq_vector, .fields = { &(event_class_x86_irq_vector.fields), &(event_class_x86_irq_vector.fields) }, .raw_init = trace_event_raw_init, .probe = trace_event_raw_event_x86_irq_vector, .reg = trace_event_reg, .perf_probe = perf_trace_x86_irq_vector, };
static struct trace_event_class __attribute__((__used__)) __attribute__((__section__(".ref.data"))) event_class_vector_config = { .system = str__irq_vectors__trace_system_name, .fields_array = trace_event_fields_vector_config, .fields = { &(event_class_vector_config.fields), &(event_class_vector_config.fields) }, .raw_init = trace_event_raw_init, .probe = trace_event_raw_event_vector_config, .reg = trace_event_reg, .perf_probe = perf_trace_vector_config, };;
[..]
How is it not used?
-- Steve
> >> include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used [-Wunused-const-variable=]
> 2 | #define __app__(x, y) str__##x##y
> | ^~~~~
> include/trace/stages/init.h:3:21: note: in expansion of macro '__app__'
> 3 | #define __app(x, y) __app__(x, y)
> | ^~~~~~~
> include/trace/stages/init.h:5:29: note: in expansion of macro '__app'
> 5 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)
> | ^~~~~
> include/trace/stages/init.h:8:27: note: in expansion of macro 'TRACE_SYSTEM_STRING'
> 8 | static const char TRACE_SYSTEM_STRING[] = \
> | ^~~~~~~~~~~~~~~~~~~
> include/trace/stages/init.h:11:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR'
> 11 | TRACE_MAKE_SYSTEM_STR();
> | ^~~~~~~~~~~~~~~~~~~~~
>
>
> vim +/str__irq_vectors__trace_system_name +2 include/trace/stages/init.h
>
> > 2 #define __app__(x, y) str__##x##y
> 3 #define __app(x, y) __app__(x, y)
> 4
>
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used
2022-05-10 13:44 ` Steven Rostedt
@ 2022-05-10 13:48 ` Steven Rostedt
0 siblings, 0 replies; 5+ messages in thread
From: Steven Rostedt @ 2022-05-10 13:48 UTC (permalink / raw)
To: kernel test robot; +Cc: kbuild-all, linux-kernel
On Tue, 10 May 2022 09:44:59 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:
> Hmm, when I do:
>
> $ make arch/x86/kernel/irq.i
> $ astyle arch/x86/kernel/irq.i
> $ grep str__irq_irq_vectors__trace_system_name
>
> static const char str__irq_vectors__trace_system_name[] = "irq_vectors";
> static struct trace_event_class __attribute__((__used__)) __attribute__((__section__(".ref.data"))) event_class_x86_irq_vector = { .system = str__irq_vectors__trace_system_name, .fields_array = trace_event_fields_x86_irq_vector, .fields = { &(event_class_x86_irq_vector.fields), &(event_class_x86_irq_vector.fields) }, .raw_init = trace_event_raw_init, .probe = trace_event_raw_event_x86_irq_vector, .reg = trace_event_reg, .perf_probe = perf_trace_x86_irq_vector, };
Or is it because it is used only in initdata?
I guess I can check if it is referenced afterward anywhere, and set it to
initdata as well, if that's the case.
-- Steve
^ permalink raw reply [flat|nested] 5+ messages in thread
* include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used
@ 2022-05-09 18:09 kernel test robot
0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2022-05-09 18:09 UTC (permalink / raw)
To: Steven Rostedt (Google); +Cc: kbuild-all, linux-kernel
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9be9ed2612b5aedb52a2c240edb1630b6b743cb6
commit: af6b9668e85ffd1502aada8036ccbf4dbd481708 tracing: Move the defines to create TRACE_EVENTS into their own files
date: 8 weeks ago
config: i386-randconfig-s002-20220509 (https://download.01.org/0day-ci/archive/20220510/202205100242.TCazrhkS-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=af6b9668e85ffd1502aada8036ccbf4dbd481708
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout af6b9668e85ffd1502aada8036ccbf4dbd481708
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from include/trace/trace_events.h:27,
from include/trace/define_trace.h:102,
from arch/x86/include/asm/trace/irq_vectors.h:383,
from arch/x86/kernel/irq.c:27:
>> include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used [-Wunused-const-variable=]
2 | #define __app__(x, y) str__##x##y
| ^~~~~
include/trace/stages/init.h:3:21: note: in expansion of macro '__app__'
3 | #define __app(x, y) __app__(x, y)
| ^~~~~~~
include/trace/stages/init.h:5:29: note: in expansion of macro '__app'
5 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)
| ^~~~~
include/trace/stages/init.h:8:27: note: in expansion of macro 'TRACE_SYSTEM_STRING'
8 | static const char TRACE_SYSTEM_STRING[] = \
| ^~~~~~~~~~~~~~~~~~~
include/trace/stages/init.h:11:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR'
11 | TRACE_MAKE_SYSTEM_STR();
| ^~~~~~~~~~~~~~~~~~~~~
vim +/str__irq_vectors__trace_system_name +2 include/trace/stages/init.h
> 2 #define __app__(x, y) str__##x##y
3 #define __app(x, y) __app__(x, y)
4
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 5+ messages in thread* include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used
@ 2024-01-10 17:20 kernel test robot
0 siblings, 0 replies; 5+ messages in thread
From: kernel test robot @ 2024-01-10 17:20 UTC (permalink / raw)
To: Steven Rostedt (Google); +Cc: oe-kbuild-all, linux-kernel
Hi Steven,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: ab27740f76654ed58dd32ac0ba0031c18a6dea3b
commit: af6b9668e85ffd1502aada8036ccbf4dbd481708 tracing: Move the defines to create TRACE_EVENTS into their own files
date: 1 year, 10 months ago
config: i386-buildonly-randconfig-003-20240106 (https://download.01.org/0day-ci/archive/20240111/202401110124.FXHxWlN9-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240111/202401110124.FXHxWlN9-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401110124.FXHxWlN9-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from include/trace/trace_events.h:27,
from include/trace/define_trace.h:102,
from arch/x86/include/asm/trace/irq_vectors.h:383,
from arch/x86/kernel/irq.c:27:
>> include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used [-Wunused-const-variable=]
2 | #define __app__(x, y) str__##x##y
| ^~~~~
include/trace/stages/init.h:3:21: note: in expansion of macro '__app__'
3 | #define __app(x, y) __app__(x, y)
| ^~~~~~~
include/trace/stages/init.h:5:29: note: in expansion of macro '__app'
5 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)
| ^~~~~
include/trace/stages/init.h:8:20: note: in expansion of macro 'TRACE_SYSTEM_STRING'
8 | static const char TRACE_SYSTEM_STRING[] = \
| ^~~~~~~~~~~~~~~~~~~
include/trace/stages/init.h:11:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR'
11 | TRACE_MAKE_SYSTEM_STR();
| ^~~~~~~~~~~~~~~~~~~~~
vim +/str__irq_vectors__trace_system_name +2 include/trace/stages/init.h
> 2 #define __app__(x, y) str__##x##y
3 #define __app(x, y) __app__(x, y)
4
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 5+ messages in thread
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2022-05-09 18:08 include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used kernel test robot
2022-05-10 13:44 ` Steven Rostedt
2022-05-10 13:48 ` Steven Rostedt
2022-05-09 18:09 kernel test robot
2024-01-10 17:20 kernel test robot
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