Hi, kernel test robot noticed the following build warnings: [auto build test WARNING on ba0ad6ed89fd5dada3b7b65ef2b08e95d449d4ab] url: https://github.com/intel-lab-lkp/linux/commits/jeffxu-chromium-org/PKEY-Introduce-PKEY_ENFORCE_API-flag/20230519-093355 base: ba0ad6ed89fd5dada3b7b65ef2b08e95d449d4ab patch link: https://lore.kernel.org/r/20230519011915.846407-5-jeffxu%40chromium.org patch subject: [PATCH v1 4/6] PKEY:selftest pkey_enforce_api for mprotect compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce: # https://github.com/intel-lab-lkp/linux/commit/ee635a3d72bf9f400d3542d27d1df9d2813640dc git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review jeffxu-chromium-org/PKEY-Introduce-PKEY_ENFORCE_API-flag/20230519-093355 git checkout ee635a3d72bf9f400d3542d27d1df9d2813640dc make O=/tmp/kselftest headers make O=/tmp/kselftest -C tools/testing/selftests If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202305301758.ddYd6um5-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from pkey_enforce_api.c:72: pkey-x86.h: In function 'expect_fault_on_read_execonly_key': >> pkey-x86.h:165:13: warning: variable 'ptr_contents' set but not used [-Wunused-but-set-variable] 165 | int ptr_contents; | ^~~~~~~~~~~~ -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki