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Subjectinclude/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used
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

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