[android-common:android15-6.6 2/2] mm/gup.c:408:6: warning: no previous prototype for '_trace_android_vh_mm_customize_longterm_pinnable'

[android-common:android15-6.6 2/2] mm/gup.c:408:6: warning: no previous prototype for '_trace_android_vh_mm_customize_longterm_pinnable'

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common android15-6.6
head:   c905c29016dd2dbf8df45e7c0287455f67ef165b
commit: 9309f0022ffe8a1b6714f8d70dfa9f57e428a6d2 [2/2] ANDROID: vendor_hook: Added hook to tune reclaimed huge page
config: arm-randconfig-r2105-20260924 (https://download.01.org/0day-ci/archive/20260924/202609241302.ZwTBLS5p-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 14.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260924/202609241302.ZwTBLS5p-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/202609241302.ZwTBLS5p-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/gup.c:408:6: warning: no previous prototype for '_trace_android_vh_mm_customize_longterm_pinnable' [-Wmissing-prototypes]
     408 | void _trace_android_vh_mm_customize_longterm_pinnable(struct folio *folio,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/_trace_android_vh_mm_customize_longterm_pinnable +408 mm/gup.c

   402	
   403	/*
   404	 * trace_android_vh_mm_customize_longterm_pinnable is called in include/linux/mm.h
   405	 * by including include/trace/hooks/mm.h, which will result to build-err.
   406	 * So we create func: _trace_android_vh_mm_customize_longterm_pinnable.
   407	 */
 > 408	void _trace_android_vh_mm_customize_longterm_pinnable(struct folio *folio,
   409			bool *is_longterm_pinnable)
   410	{
   411		trace_android_vh_mm_customize_longterm_pinnable(folio, is_longterm_pinnable);
   412	}
   413	

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