[android-common:android14-kiwi-6.1 249/249] mm/pgsize_migration.c:98: warning: expecting prototype for What(). Prototype was for init_pgsize_migration() instead

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

tree:   https://android.googlesource.com/kernel/common android14-kiwi-6.1
head:   d2ae202da688a9a795c238142e01da921b3e4b81
commit: e79c1d45908063d1d7bc247e0e9bde6d9283a09e [249/249] ANDROID: 16K: Introduce /sys/kernel/mm/pgsize_miration/enabled
config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20250215/202502150058.n8f1F2An-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250215/202502150058.n8f1F2An-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/202502150058.n8f1F2An-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> mm/pgsize_migration.c:98: warning: expecting prototype for What(). Prototype was for init_pgsize_migration() instead


vim +98 mm/pgsize_migration.c

    81	
    82	/**
    83	 * What:          /sys/kernel/mm/pgsize_migration/enabled
    84	 * Date:          April 2024
    85	 * KernelVersion: v5.4+ (GKI kernels)
    86	 * Contact:       Kalesh Singh <kaleshsingh@google.com>
    87	 * Description:   /sys/kernel/mm/pgsize_migration/enabled
    88	 *                allows for userspace to turn on or off page size
    89	 *                migration mitigations necessary for app compatibility
    90	 *                during Android's transition from 4kB to 16kB page size.
    91	 *                Such mitigations include preserving /proc/<pid>/[s]maps
    92	 *                output as if there was no segment extension by the
    93	 *                dynamic loader; and preventing fault around in the padding
    94	 *                sections of ELF LOAD segment mappings.
    95	 * Users:         Bionic's dynamic linker
    96	 */
    97	static int __init init_pgsize_migration(void)
  > 98	{

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