tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: e833cceaa63f729c44be494d90d6ee3bfaf22faf commit: 344e656b7d90e2c612b1d28b38031f478b6ec6a7 [1231/1231] arm64/mpam: resctrl: Rebuild configuration and monitoring pipeline config: arm64-randconfig-001-20241029 (https://download.01.org/0day-ci/archive/20241104/202411040244.T5Iwab5V-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241104/202411040244.T5Iwab5V-lkp@i...) 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/202411040244.T5Iwab5V-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/arm64/kernel/mpam/mpam_ctrlmon.c: In function 'resctrl_group_parse_resource':

...

arch/arm64/kernel/mpam/mpam_ctrlmon.c:203:38: warning: variable 'rr' set but not used [-Wunused-but-set-variable] 203 | struct raw_resctrl_resource *rr; | ^~ arch/arm64/kernel/mpam/mpam_ctrlmon.c: In function 'resctrl_group_schemata_show': arch/arm64/kernel/mpam/mpam_ctrlmon.c:307:38: warning: variable 'rr' set but not used [-Wunused-but-set-variable] 307 | struct raw_resctrl_resource *rr; | ^~

vim +/rr +203 arch/arm64/kernel/mpam/mpam_ctrlmon.c 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 198 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 199 static int resctrl_group_parse_resource(char *resname, char *tok, int closid) 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 200 { 344e656b7d90e2c arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 201 struct mpam_resctrl_res *res; 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 202 struct resctrl_resource *r; 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 @203 struct raw_resctrl_resource *rr; 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 204 344e656b7d90e2c arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 205 for_each_supported_resctrl_exports(res) { 344e656b7d90e2c arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 206 r = &res->resctrl_res; 344e656b7d90e2c arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 207 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 208 if (r->alloc_enabled) { 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 209 rr = (struct raw_resctrl_resource *)r->res; 344e656b7d90e2c arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 210 if (!strcmp(resname, r->name) && closid < 344e656b7d90e2c arch/arm64/kernel/mpam/mpam_ctrlmon.c Wang ShaoBo 2021-02-24 211 mpam_sysprops_num_partid()) 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 212 return parse_line(tok, r); 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 213 } 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 214 } 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 215 rdt_last_cmd_printf("unknown/unsupported resource name '%s'\n", resname); 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 216 return -EINVAL; 19cab98fba25040 arch/arm64/kernel/mpam_ctrlmon.c Xie XiuQi 2019-01-29 217 } 1abcabe9dab59ec arch/arm64/kernel/mpam_ctrlmon.c Yang Yingliang 2019-01-30 218 :::::: The code at line 203 was first introduced by commit :::::: 19cab98fba25040817f1a6b9b6b70c6b458a169a arm64/mpam: use mpam_{read/write}_sysreg_s for debug :::::: TO: Xie XiuQi <xiexiuqi@huawei.com> :::::: CC: Xie XiuQi <xiexiuqi@huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki