Hi Colton, kernel test robot noticed the following build warnings: [auto build test WARNING on perf-tools-next/perf-tools-next] [also build test WARNING on tip/perf/core perf-tools/perf-tools acme/perf/core linus/master v6.11-rc7 next-20240912] [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/Colton-Lewis/arm-perf-Drop-unused-functions/20240912-063910 base: https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git perf-tools-next patch link: https://lore.kernel.org/r/20240911222433.3415301-6-coltonlewis%40google.com patch subject: [PATCH v2 5/5] perf: Correct perf sampling with guest VMs config: x86_64-buildonly-randconfig-005-20240912 (https://download.01.org/0day-ci/archive/20240912/202409122254.PnIe8ulL-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240912/202409122254.PnIe8ulL-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202409122254.PnIe8ulL-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): arch/x86/events/core.c: In function 'perf_arch_misc_flags': >> arch/x86/events/core.c:2971:22: warning: unused variable 'guest_state' [-Wunused-variable] 2971 | unsigned int guest_state = perf_guest_state(); | ^~~~~~~~~~~ vim +/guest_state +2971 arch/x86/events/core.c 8f19518b57cef1 arch/x86/events/core.c Colton Lewis 2024-09-11 2968 a2d1490e40282f arch/x86/events/core.c Colton Lewis 2024-09-11 2969 unsigned long perf_arch_misc_flags(struct pt_regs *regs) 39447b386c846b arch/x86/kernel/cpu/perf_event.c Zhang, Yanmin 2010-04-19 2970 { 1c3430516b0732 arch/x86/events/core.c Sean Christopherson 2021-11-11 @2971 unsigned int guest_state = perf_guest_state(); 8f19518b57cef1 arch/x86/events/core.c Colton Lewis 2024-09-11 2972 unsigned long misc = common_misc_flags(regs); dcf46b9443ad48 arch/x86/kernel/cpu/perf_event.c Zhang, Yanmin 2010-04-20 2973 d07bdfd322d307 arch/x86/kernel/cpu/perf_event.c Peter Zijlstra 2012-07-10 2974 if (user_mode(regs)) dcf46b9443ad48 arch/x86/kernel/cpu/perf_event.c Zhang, Yanmin 2010-04-20 2975 misc |= PERF_RECORD_MISC_USER; dcf46b9443ad48 arch/x86/kernel/cpu/perf_event.c Zhang, Yanmin 2010-04-20 2976 else dcf46b9443ad48 arch/x86/kernel/cpu/perf_event.c Zhang, Yanmin 2010-04-20 2977 misc |= PERF_RECORD_MISC_KERNEL; dcf46b9443ad48 arch/x86/kernel/cpu/perf_event.c Zhang, Yanmin 2010-04-20 2978 39447b386c846b arch/x86/kernel/cpu/perf_event.c Zhang, Yanmin 2010-04-19 2979 return misc; 39447b386c846b arch/x86/kernel/cpu/perf_event.c Zhang, Yanmin 2010-04-19 2980 } b3d9468a8bd218 arch/x86/kernel/cpu/perf_event.c Gleb Natapov 2011-11-10 2981 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
