Messages in this thread | | | Date | Tue, 10 May 2022 02:08:23 +0800 | From | kernel test robot <> | Subject | include/trace/stages/init.h:2:23: warning: 'str__irq_vectors__trace_system_name' defined but not used |
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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
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