Hi Vishal, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] [also build test WARNING on linus/master v6.8-rc5 next-20240221] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Vishal-Moola-Oracle/mm-memory-Change-vmf_anon_prepare-to-be-non-static/20240221-071907 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240220231424.126600-2-vishal.moola%40gmail.com patch subject: [PATCH 1/3] mm/memory: Change vmf_anon_prepare() to be non-static config: arm-defconfig (https://download.01.org/0day-ci/archive/20240222/202402220109.SIlFdfQ5-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240222/202402220109.SIlFdfQ5-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202402220109.SIlFdfQ5-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> mm/memory.c:3283:12: warning: no previous prototype for function 'vmf_anon_prepare' [-Wmissing-prototypes] vm_fault_t vmf_anon_prepare(struct vm_fault *vmf) ^ mm/memory.c:3283:1: note: declare 'static' if the function is not intended to be used outside of this translation unit vm_fault_t vmf_anon_prepare(struct vm_fault *vmf) ^ static 1 warning generated. vim +/vmf_anon_prepare +3283 mm/memory.c 3282 > 3283 vm_fault_t vmf_anon_prepare(struct vm_fault *vmf) 3284 { 3285 struct vm_area_struct *vma = vmf->vma; 3286 3287 if (likely(vma->anon_vma)) 3288 return 0; 3289 if (vmf->flags & FAULT_FLAG_VMA_LOCK) { 3290 vma_end_read(vma); 3291 return VM_FAULT_RETRY; 3292 } 3293 if (__anon_vma_prepare(vma)) 3294 return VM_FAULT_OOM; 3295 return 0; 3296 } 3297 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
