[ammarfaizi2-block:google/android/kernel/common/android14-5.15 7/11] arch/arm64/include/asm/kvm_hypevents.h:14:1: warning: no previous prototype for function 'hyp_event_trace_hyp_enter'

[ammarfaizi2-block:google/android/kernel/common/android14-5.15 7/11] arch/arm64/include/asm/kvm_hypevents.h:14:1: warning: no previous prototype for function 'hyp_event_trace_hyp_enter'

[kernel test robot]

tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android14-5.15
head:   8e245b4c3a574fbb94b6b655f84e071febc147a6
commit: 089c9082c2fd92365acd669b092c2256267f2e13 [7/11] ANDROID: KVM: arm64: Add support for nVHE hyp events
config: arm64-randconfig-r032-20230213 (https://download.01.org/0day-ci/archive/20230214/202302141826.CELNvZxL-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project db89896bbbd2251fff457699635acbbedeead27f)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/ammarfaizi2/linux-block/commit/089c9082c2fd92365acd669b092c2256267f2e13
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android14-5.15
        git checkout 089c9082c2fd92365acd669b092c2256267f2e13
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kvm/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302141826.CELNvZxL-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/arm64/kvm/hyp_events.c:34:
>> arch/arm64/include/asm/kvm_hypevents.h:14:1: warning: no previous prototype for function 'hyp_event_trace_hyp_enter' [-Wmissing-prototypes]
   HYP_EVENT(hyp_enter,
   ^
   arch/arm64/kvm/hyp_events.c:22:20: note: expanded from macro 'HYP_EVENT'
           enum print_line_t hyp_event_trace_##__name(struct trace_iterator *iter, \
                             ^
   <scratch space>:80:1: note: expanded from here
   hyp_event_trace_hyp_enter
   ^
   arch/arm64/include/asm/kvm_hypevents.h:14:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   arch/arm64/kvm/hyp_events.c:22:2: note: expanded from macro 'HYP_EVENT'
           enum print_line_t hyp_event_trace_##__name(struct trace_iterator *iter, \
           ^
   In file included from arch/arm64/kvm/hyp_events.c:34:
>> arch/arm64/include/asm/kvm_hypevents.h:23:1: warning: no previous prototype for function 'hyp_event_trace_hyp_exit' [-Wmissing-prototypes]
   HYP_EVENT(hyp_exit,
   ^
   arch/arm64/kvm/hyp_events.c:22:20: note: expanded from macro 'HYP_EVENT'
           enum print_line_t hyp_event_trace_##__name(struct trace_iterator *iter, \
                             ^
   <scratch space>:85:1: note: expanded from here
   hyp_event_trace_hyp_exit
   ^
   arch/arm64/include/asm/kvm_hypevents.h:23:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   arch/arm64/kvm/hyp_events.c:22:2: note: expanded from macro 'HYP_EVENT'
           enum print_line_t hyp_event_trace_##__name(struct trace_iterator *iter, \
           ^
>> arch/arm64/kvm/hyp_events.c:166:6: warning: no previous prototype for function 'kvm_hyp_init_events_tracefs' [-Wmissing-prototypes]
   void kvm_hyp_init_events_tracefs(struct dentry *parent)
        ^
   arch/arm64/kvm/hyp_events.c:166:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void kvm_hyp_init_events_tracefs(struct dentry *parent)
   ^
   static 
>> arch/arm64/kvm/hyp_events.c:198:5: warning: no previous prototype for function 'kvm_hyp_init_events' [-Wmissing-prototypes]
   int kvm_hyp_init_events(void)
       ^
   arch/arm64/kvm/hyp_events.c:198:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int kvm_hyp_init_events(void)
   ^
   static 
   4 warnings generated.


vim +/hyp_event_trace_hyp_enter +14 arch/arm64/include/asm/kvm_hypevents.h

     9	
    10	/*
    11	 * Hypervisor events definitions.
    12	 */
    13	
  > 14	HYP_EVENT(hyp_enter,
    15		HE_PROTO(void),
    16		HE_STRUCT(
    17		),
    18		HE_ASSIGN(
    19		),
    20		HE_PRINTK(" ")
    21	);
    22	
  > 23	HYP_EVENT(hyp_exit,

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests