[android-common:android16-6.12 1/1] arch/arm64/kvm/hyp_events.c:235:18: sparse: sparse: symbol '__hyp_trace_find_event_name' was not declared. Should it be static?

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

tree:   https://android.googlesource.com/kernel/common android16-6.12
head:   234a951b246d8500f6b621fe23c238bdc2afcef5
commit: 12aaf60a831904372fbd91490acdeb2c4ab3cf78 [1/1] ANDROID: KVM: arm64: Allow registration of pKVM module hyp events
config: arm64-randconfig-r131-20250409 (https://download.01.org/0day-ci/archive/20250410/202504100339.vqr59ZkW-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 92c93f5286b9ff33f27ff694d2dc33da1c07afdd)
reproduce: (https://download.01.org/0day-ci/archive/20250410/202504100339.vqr59ZkW-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/202504100339.vqr59ZkW-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   arch/arm64/kvm/hyp_events.c: note: in included file (through arch/arm64/include/asm/kvm_define_hypevents.h):
   arch/arm64/include/asm/kvm_hypevents.h:14:1: sparse: sparse: symbol 'hyp_event_hyp_enter' was not declared. Should it be static?
   arch/arm64/include/asm/kvm_hypevents.h:23:1: sparse: sparse: symbol 'hyp_event_hyp_exit' was not declared. Should it be static?
   arch/arm64/include/asm/kvm_hypevents.h:32:1: sparse: sparse: symbol 'hyp_event_host_hcall' was not declared. Should it be static?
   arch/arm64/include/asm/kvm_hypevents.h:46:1: sparse: sparse: symbol 'hyp_event_host_smc' was not declared. Should it be static?
   arch/arm64/include/asm/kvm_hypevents.h:61:1: sparse: sparse: symbol 'hyp_event_host_mem_abort' was not declared. Should it be static?
   arch/arm64/include/asm/kvm_hypevents.h:75:1: sparse: sparse: symbol 'hyp_event___hyp_printk' was not declared. Should it be static?
>> arch/arm64/kvm/hyp_events.c:235:18: sparse: sparse: symbol '__hyp_trace_find_event_name' was not declared. Should it be static?
   arch/arm64/kvm/hyp_events.c:258:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
   arch/arm64/kvm/hyp_events.c:258:17: sparse:    struct hyp_event_table [noderef] __rcu *
   arch/arm64/kvm/hyp_events.c:258:17: sparse:    struct hyp_event_table *
>> arch/arm64/kvm/hyp_events.c:247:18: sparse: sparse: symbol 'hyp_trace_find_event_name' was not declared. Should it be static?
   arch/arm64/kvm/hyp_events.c:284:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
   arch/arm64/kvm/hyp_events.c:284:25: sparse:    struct hyp_event_table [noderef] __rcu *
   arch/arm64/kvm/hyp_events.c:284:25: sparse:    struct hyp_event_table *
   arch/arm64/kvm/hyp_events.c:451:18: sparse: sparse: incompatible types in comparison expression (different address spaces):
   arch/arm64/kvm/hyp_events.c:451:18: sparse:    struct hyp_event_table [noderef] __rcu *
   arch/arm64/kvm/hyp_events.c:451:18: sparse:    struct hyp_event_table *
   arch/arm64/kvm/hyp_events.c:451:18: sparse: sparse: incompatible types in comparison expression (different address spaces):
   arch/arm64/kvm/hyp_events.c:451:18: sparse:    struct hyp_event_table [noderef] __rcu *
   arch/arm64/kvm/hyp_events.c:451:18: sparse:    struct hyp_event_table *

vim +/__hyp_trace_find_event_name +235 arch/arm64/kvm/hyp_events.c

   231	
   232	#define nr_events(__start, __stop) \
   233		(((unsigned long)__stop - (unsigned long)__start) / sizeof(*__start))
   234	
 > 235	struct hyp_event *__hyp_trace_find_event_name(const char *name,
   236						      struct hyp_event *start,
   237						      struct hyp_event *end)
   238	{
   239		for (; start < end; start++) {
   240			if (!strncmp(name, start->name, HYP_EVENT_NAME_MAX))
   241				return start;
   242		}
   243	
   244		return NULL;
   245	}
   246	
 > 247	struct hyp_event *hyp_trace_find_event_name(const char *name)
   248	{
   249		struct hyp_event_table *table;
   250		struct hyp_event *event =
   251			__hyp_trace_find_event_name(name, __hyp_events_start,
   252						    __hyp_events_end);
   253	
   254		if (event)
   255			return event;
   256	
   257		rcu_read_lock();
   258		table = rcu_dereference(mod_event_tables.tables);
   259	
   260		for (int i = 0; i < mod_event_tables.nr_tables; i++) {
   261			struct hyp_event *end = table->start + table->nr_events;
   262	
   263			event = __hyp_trace_find_event_name(name, table->start, end);
   264			if (event)
   265				break;
   266		}
   267	
   268		rcu_read_unlock();
   269	
   270		return event;
   271	}
   272	

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