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charset=us-ascii Content-Disposition: inline tree: https://github.com/AsahiLinux/linux bits/220-tso head: 6a8bd3529f0e9a26ebabd614ab6582cda3337142 commit: 2a13d04cf14b7cb9432177840c840fb42fb411a6 [3/4] arm64: Implement PR_{GET,SET}_MEM_MODEL for always-TSO CPUs config: arm64-randconfig-r011-20230816 (https://download.01.org/0day-ci/archive/20230817/202308170117.vXBT0Pwa-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230817/202308170117.vXBT0Pwa-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202308170117.vXBT0Pwa-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/arm64/kernel/cpufeature_impdef.c:11:6: warning: no previous prototype for function 'has_tso_fixed' [-Wmissing-prototypes] 11 | bool has_tso_fixed(const struct arm64_cpu_capabilities *entry, int scope) | ^ arch/arm64/kernel/cpufeature_impdef.c:11:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 11 | bool has_tso_fixed(const struct arm64_cpu_capabilities *entry, int scope) | ^ | static >> arch/arm64/kernel/cpufeature_impdef.c:36:13: warning: no previous prototype for function 'init_cpu_hwcaps_indirect_list_impdef' [-Wmissing-prototypes] 36 | void __init init_cpu_hwcaps_indirect_list_impdef(void) | ^ arch/arm64/kernel/cpufeature_impdef.c:36:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 36 | void __init init_cpu_hwcaps_indirect_list_impdef(void) | ^ | static 2 warnings generated. -- >> arch/arm64/kernel/cpufeature.c:959:1: warning: no previous prototype for function 'init_cpu_hwcaps_indirect_list_from_array' [-Wmissing-prototypes] 959 | init_cpu_hwcaps_indirect_list_from_array(const struct arm64_cpu_capabilities *caps) | ^ arch/arm64/kernel/cpufeature.c:958:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 958 | void __init | ^ | static >> arch/arm64/kernel/cpufeature.c:1428:1: warning: no previous prototype for function 'feature_matches' [-Wmissing-prototypes] 1428 | feature_matches(u64 reg, const struct arm64_cpu_capabilities *entry) | ^ arch/arm64/kernel/cpufeature.c:1427:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1427 | bool | ^ | static 2 warnings generated. -- >> arch/arm64/kernel/process.c:544:5: warning: no previous prototype for function 'arch_prctl_mem_model_get' [-Wmissing-prototypes] 544 | int arch_prctl_mem_model_get(struct task_struct *t) | ^ arch/arm64/kernel/process.c:544:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 544 | int arch_prctl_mem_model_get(struct task_struct *t) | ^ | static >> arch/arm64/kernel/process.c:549:5: warning: no previous prototype for function 'arch_prctl_mem_model_set' [-Wmissing-prototypes] 549 | int arch_prctl_mem_model_set(struct task_struct *t, unsigned long val) | ^ arch/arm64/kernel/process.c:549:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 549 | int arch_prctl_mem_model_set(struct task_struct *t, unsigned long val) | ^ | static 2 warnings generated. vim +/has_tso_fixed +11 arch/arm64/kernel/cpufeature_impdef.c 10 > 11 bool has_tso_fixed(const struct arm64_cpu_capabilities *entry, int scope) 12 { 13 /* List of CPUs that always use the TSO memory model */ 14 static const struct midr_range fixed_tso_list[] = { 15 MIDR_ALL_VERSIONS(MIDR_NVIDIA_DENVER), 16 MIDR_ALL_VERSIONS(MIDR_NVIDIA_CARMEL), 17 MIDR_ALL_VERSIONS(MIDR_FUJITSU_A64FX), 18 { /* sentinel */ } 19 }; 20 21 return is_midr_in_range_list(read_cpuid_id(), fixed_tso_list); 22 } 23 24 static const struct arm64_cpu_capabilities arm64_impdef_features[] = { 25 #ifdef CONFIG_ARM64_MEMORY_MODEL_CONTROL 26 { 27 .desc = "TSO memory model (Fixed)", 28 .capability = ARM64_HAS_TSO_FIXED, 29 .type = ARM64_CPUCAP_SYSTEM_FEATURE, 30 .matches = has_tso_fixed, 31 }, 32 #endif 33 {}, 34 }; 35 > 36 void __init init_cpu_hwcaps_indirect_list_impdef(void) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki