tree: https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git fileattr_v4 head: 621a35401402871cedd0fbd583bb2d0b961af609 commit: 37efe2f3c88fb040c7543f05b72a8c0589bbc447 [22/23] fuse: convert to fileattr config: x86_64-randconfig-a004-20210407 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 56ea2e2fdd691136d5e6631fa0e447173694b82c) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git/commit/?... git remote add miklos-vfs https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git git fetch --no-tags miklos-vfs fileattr_v4 git checkout 37efe2f3c88fb040c7543f05b72a8c0589bbc447 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): struct fuse_file *fuse_priv_ioctl_prepare(struct inode *inode) ^ fs/fuse/ioctl.c:403:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct fuse_file *fuse_priv_ioctl_prepare(struct inode *inode) ^ static void fuse_priv_ioctl_cleanup(struct inode *inode, struct fuse_file *ff) ^ fs/fuse/ioctl.c:414:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void fuse_priv_ioctl_cleanup(struct inode *inode, struct fuse_file *ff) ^ static 2 warnings generated. vim +/fuse_priv_ioctl_prepare +403 fs/fuse/ioctl.c 402 404 { 405 struct fuse_mount *fm = get_fuse_mount(inode); 406 bool isdir = S_ISDIR(inode->i_mode); 407 408 if (!S_ISREG(inode->i_mode) && !isdir) 409 return ERR_PTR(-ENOTTY); 410 411 return fuse_file_open(fm, get_node_id(inode), O_RDONLY, isdir); 412 } 413 415 { 416 fuse_file_release(inode, ff, O_RDONLY, NULL, S_ISDIR(inode->i_mode)); 417 } 418 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org