[openeuler:openEuler-1.0-LTS 15243/23920] arch/arm64/kernel/mpam/mpam_device.c:99:24: warning: no previous prototype for 'mpam_component_get'

[openeuler:openEuler-1.0-LTS 15243/23920] arch/arm64/kernel/mpam/mpam_device.c:99:24: warning: no previous prototype for 'mpam_component_get'

[kernel test robot]

tree:   https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS
head:   c6de47cf1f63ecc3ed337601e06ab8dc1c707563
commit: 73d5cd426ed0b4aed565a11aa8eb86d90b444d94 [15243/23920] arm64/mpam: Add mpam driver discovery phase and kbuild boiler plate
config: arm64-randconfig-001-20241029 (https://download.01.org/0day-ci/archive/20241031/202410311541.Ld1wpJ0T-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241031/202410311541.Ld1wpJ0T-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/202410311541.Ld1wpJ0T-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/arm64/kernel/mpam/mpam_device.c:99:24: warning: no previous prototype for 'mpam_component_get' [-Wmissing-prototypes]
      99 | struct mpam_component *mpam_component_get(struct mpam_class *class, int id,
         |                        ^~~~~~~~~~~~~~~~~~
   arch/arm64/kernel/mpam/mpam_device.c:190:1: warning: no previous prototype for '__mpam_device_create' [-Wmissing-prototypes]
     190 | __mpam_device_create(u8 level_idx, enum mpam_class_types type,
         | ^~~~~~~~~~~~~~~~~~~~
   arch/arm64/kernel/mpam/mpam_device.c:248:12: warning: no previous prototype for 'mpam_discovery_start' [-Wmissing-prototypes]
     248 | int __init mpam_discovery_start(void)
         |            ^~~~~~~~~~~~~~~~~~~~
   arch/arm64/kernel/mpam/mpam_device.c:256:12: warning: no previous prototype for 'mpam_discovery_complete' [-Wmissing-prototypes]
     256 | int __init mpam_discovery_complete(void)
         |            ^~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kernel/mpam/mpam_device.c:261:13: warning: no previous prototype for 'mpam_discovery_failed' [-Wmissing-prototypes]
     261 | void __init mpam_discovery_failed(void)
         |             ^~~~~~~~~~~~~~~~~~~~~


vim +/mpam_component_get +99 arch/arm64/kernel/mpam/mpam_device.c

    98	
  > 99	struct mpam_component *mpam_component_get(struct mpam_class *class, int id,
   100							bool alloc)
   101	{
   102		struct mpam_component *comp;
   103	
   104		list_for_each_entry(comp, &class->components, class_list) {
   105			if (comp->comp_id == id)
   106				return comp;
   107		}
   108	
   109		if (!alloc)
   110			return ERR_PTR(-ENOENT);
   111	
   112		comp = mpam_component_alloc(id);
   113		if (IS_ERR(comp))
   114			return comp;
   115	
   116		list_add(&comp->class_list, &class->components);
   117	
   118		return comp;
   119	}
   120	

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https://github.com/intel/lkp-tests/wiki