[openeuler:OLK-5.10 3415/3415] arch/arm64/mm/init.c:730:6: warning: no previous prototype for 'ascend_enable_all_features'

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

Hi Wang,

FYI, the error/warning still remains.

tree:   https://gitee.com/openeuler/kernel.git OLK-5.10
head:   1588d318a9e388d05b6cf5e2a63134c8beb6a355
commit: 66ae8ddda388386daea0623a65ea2ac85c24ca00 [3415/3415] ascend/arm64: Add ascend_enable_all kernel parameter
config: arm64-allnoconfig (https://download.01.org/0day-ci/archive/20251222/202512220606.726hmC01-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251222/202512220606.726hmC01-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/202512220606.726hmC01-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/arm64/mm/init.c:730:6: warning: no previous prototype for 'ascend_enable_all_features' [-Wmissing-prototypes]
     730 | void ascend_enable_all_features(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/ascend_enable_all_features +730 arch/arm64/mm/init.c

   729	
 > 730	void ascend_enable_all_features(void)
   731	{
   732		if (IS_ENABLED(CONFIG_ASCEND_DVPP_MMAP))
   733			enable_mmap_dvpp = 1;
   734	

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