On Fri, 6 Jan 2023 23:02:44 +0800 kernel test robot <lkp@xxxxxxxxx> wrote: > tree: https://github.com/ammarfaizi2/linux-block akpm/mm/mm-unstable > head: a2765ca8c916591ebc9af48b4e545922c0bd3c3b > commit: c9f5ce5be2dfd3e5d5f36cac50b93c86982fcabc [187/223] mmap: convert __vma_adjust() to use vma iterator > config: arm-randconfig-r004-20230106 > compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 8d9828ef5aa9688500657d36cd2aefbe12bbd162) > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # install arm cross compiling tool for clang build > # apt-get install binutils-arm-linux-gnueabi > # https://github.com/ammarfaizi2/linux-block/commit/c9f5ce5be2dfd3e5d5f36cac50b93c86982fcabc > git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block > git fetch --no-tags ammarfaizi2-block akpm/mm/mm-unstable > git checkout c9f5ce5be2dfd3e5d5f36cac50b93c86982fcabc > # save the config file > mkdir build_dir && cp config build_dir/.config > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash > > If you fix the issue, kindly add following tag where applicable > | Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All warnings (new ones prefixed by >>): > > >> mm/nommu.c:547:6: warning: no previous prototype for function 'vma_mas_store' [-Wmissing-prototypes] > void vma_mas_store(struct vm_area_struct *vma, struct ma_state *mas) > ^ Thanks. I'll do this for now, as a temp thing. --- a/mm/nommu.c~mmap-convert-__vma_adjust-to-use-vma-iterator-fix +++ a/mm/nommu.c @@ -544,7 +544,7 @@ static void put_nommu_region(struct vm_r __put_nommu_region(region); } -void vma_mas_store(struct vm_area_struct *vma, struct ma_state *mas) +static void vma_mas_store(struct vm_area_struct *vma, struct ma_state *mas) { mas_set_range(mas, vma->vm_start, vma->vm_end - 1); mas_store_prealloc(mas, vma); _