[asahilinux:bits/220-tso 3/4] arch/arm64/kernel/cpufeature_impdef.c:11:6: warning: no previous prototype for function 'has_tso_fixed'

[kernel test robot <lkp@intel.com>]

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 <lkp@intel.com>
| 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)

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