[android-common:android16-6.12-sp 0/1] drivers/android/binder.c:7476:6: warning: no previous prototype for 'binder_remove_trace_events'

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

Hi Alice,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android16-6.12-sp
head:   f815f5cffc922b8894200a0522dcb04211c469ec
commit: 43c26111cafa87d81570c63d96c497e13ec883da [0/1] ANDROID: binder: unload C Binder trace events
config: x86_64-randconfig-016-20260516 (https://download.01.org/0day-ci/archive/20260516/202605160645.G6We0dGT-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260516/202605160645.G6We0dGT-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/202605160645.G6We0dGT-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/android/binder.c:7476:6: warning: no previous prototype for 'binder_remove_trace_events' [-Wmissing-prototypes]
    7476 | void binder_remove_trace_events(struct module *module)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/android/binder.c:7502:5: warning: no previous prototype for 'unload_binder' [-Wmissing-prototypes]
    7502 | int unload_binder(void)
         |     ^~~~~~~~~~~~~


vim +/binder_remove_trace_events +7476 drivers/android/binder.c

  7475	
> 7476	void binder_remove_trace_events(struct module *module)
  7477	{
  7478		struct trace_event_call *call, *tmp;
  7479		const char *name;
  7480	
  7481		mutex_lock(&event_mutex);
  7482		mutex_lock(&trace_types_lock);
  7483		down_write(&trace_event_sem);
  7484		list_for_each_entry_safe(call, tmp, &ftrace_events, list) {
  7485			name = trace_event_name(call);
  7486			if (!name || strncmp(name, "binder_", 7))
  7487				continue;
  7488			if (call->module != module)
  7489				continue;
  7490			remove_event_from_tracers(call);
  7491			list_del_init(&call->list);
  7492		}
  7493		up_write(&trace_event_sem);
  7494		mutex_unlock(&trace_types_lock);
  7495		mutex_unlock(&event_mutex);
  7496	}
  7497	EXPORT_SYMBOL_GPL(binder_remove_trace_events);
  7498	

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