[android-common:android15-6.6 2/2] arch/arm64/include/asm/kvm_define_hypevents.h:17:7: warning: no previous prototype for 'hyp_event_trace_host_hcall'

[android-common:android15-6.6 2/2] arch/arm64/include/asm/kvm_define_hypevents.h:17:7: warning: no previous prototype for 'hyp_event_trace_host_hcall'

[kernel test robot]

Hi Vincent,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android15-6.6
head:   24c059d9e217f32d61570fdbd7eb66bc999657a9
commit: 21219611de5b7057f779bc35ec6e09821942e7f4 [2/2] ANDROID: KVM: arm64: Add EL2 wakeup cause hyp events
config: arm64-randconfig-004-20260816 (https://download.01.org/0day-ci/archive/20260817/202608170627.XZhNfyRA-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260817/202608170627.XZhNfyRA-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/202608170627.XZhNfyRA-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/arm64/kvm/hyp_events.c:9:
   arch/arm64/include/asm/kvm_define_hypevents.h:17:7: warning: no previous prototype for 'hyp_event_trace_hyp_enter' [-Wmissing-prototypes]
      17 |  void hyp_event_trace_##__name(struct ht_iterator *iter)   \
         |       ^~~~~~~~~~~~~~~~
   arch/arm64/include/asm/kvm_hypevents.h:14:1: note: in expansion of macro 'HYP_EVENT'
      14 | HYP_EVENT(hyp_enter,
         | ^~~~~~~~~
   arch/arm64/include/asm/kvm_define_hypevents.h:17:7: warning: no previous prototype for 'hyp_event_trace_hyp_exit' [-Wmissing-prototypes]
      17 |  void hyp_event_trace_##__name(struct ht_iterator *iter)   \
         |       ^~~~~~~~~~~~~~~~
   arch/arm64/include/asm/kvm_hypevents.h:23:1: note: in expansion of macro 'HYP_EVENT'
      23 | HYP_EVENT(hyp_exit,
         | ^~~~~~~~~
>> arch/arm64/include/asm/kvm_define_hypevents.h:17:7: warning: no previous prototype for 'hyp_event_trace_host_hcall' [-Wmissing-prototypes]
      17 |  void hyp_event_trace_##__name(struct ht_iterator *iter)   \
         |       ^~~~~~~~~~~~~~~~
   arch/arm64/include/asm/kvm_hypevents.h:32:1: note: in expansion of macro 'HYP_EVENT'
      32 | HYP_EVENT(host_hcall,
         | ^~~~~~~~~
>> arch/arm64/include/asm/kvm_define_hypevents.h:17:7: warning: no previous prototype for 'hyp_event_trace_host_smc' [-Wmissing-prototypes]
      17 |  void hyp_event_trace_##__name(struct ht_iterator *iter)   \
         |       ^~~~~~~~~~~~~~~~
   arch/arm64/include/asm/kvm_hypevents.h:46:1: note: in expansion of macro 'HYP_EVENT'
      46 | HYP_EVENT(host_smc,
         | ^~~~~~~~~
>> arch/arm64/include/asm/kvm_define_hypevents.h:17:7: warning: no previous prototype for 'hyp_event_trace_host_mem_abort' [-Wmissing-prototypes]
      17 |  void hyp_event_trace_##__name(struct ht_iterator *iter)   \
         |       ^~~~~~~~~~~~~~~~
   arch/arm64/include/asm/kvm_hypevents.h:61:1: note: in expansion of macro 'HYP_EVENT'
      61 | HYP_EVENT(host_mem_abort,
         | ^~~~~~~~~
   arch/arm64/kvm/hyp_events.c:198:6: warning: no previous prototype for 'hyp_trace_init_event_early' [-Wmissing-prototypes]
     198 | bool hyp_trace_init_event_early(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp_events.c:233:6: warning: no previous prototype for 'hyp_trace_init_event_tracefs' [-Wmissing-prototypes]
     233 | void hyp_trace_init_event_tracefs(struct dentry *parent)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp_events.c:268:19: warning: no previous prototype for 'hyp_trace_find_event' [-Wmissing-prototypes]
     268 | struct hyp_event *hyp_trace_find_event(int id)
         |                   ^~~~~~~~~~~~~~~~~~~~
   arch/arm64/kvm/hyp_events.c:281:5: warning: no previous prototype for 'hyp_trace_init_events' [-Wmissing-prototypes]
     281 | int hyp_trace_init_events(void)
         |     ^~~~~~~~~~~~~~~~~~~~~


vim +/hyp_event_trace_host_hcall +17 arch/arm64/include/asm/kvm_define_hypevents.h

f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  14  
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  15  #define HYP_EVENT(__name, __proto, __struct, __assign, __printk)		\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  16  	HYP_EVENT_FORMAT(__name, __struct);					\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26 @17  	void hyp_event_trace_##__name(struct ht_iterator *iter)			\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  18  	{									\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  19  		struct trace_hyp_format_##__name __maybe_unused *__entry =	\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  20  			(struct trace_hyp_format_##__name *)iter->ent;		\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  21  		trace_seq_puts(&iter->seq, #__name);				\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  22  		trace_seq_putc(&iter->seq, ' ');				\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  23  		trace_seq_printf(&iter->seq, __printk);				\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  24  		trace_seq_putc(&iter->seq, '\n');				\
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  25  	}
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  26  #define HYP_EVENT_MULTI_READ
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  27  #include __HYP_EVENT_FILE
f6dbfc683cf5fbb Vincent Donnefort 2023-01-26  28  

:::::: The code at line 17 was first introduced by commit
:::::: f6dbfc683cf5fbbd37b6fdead1b5b08912cf6570 ANDROID: KVM: arm64: Add support for nVHE hyp events

:::::: TO: Vincent Donnefort <vdonnefort@google.com>
:::::: CC: Fuad Tabba <tabba@google.com>

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