tree: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git repair-symlink-swapext head: 851df07d9599471df909c4ff0e3cf33f4b9619f0 commit: 90d15e3e9dcd303fbb36e9a54e7c36457ff9a254 [323/325] xfs: move symlink target write function to libxfs config: riscv-randconfig-r042-20211216 (https://download.01.org/0day-ci/archive/20211216/202112161930.6u4fjfND-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dd245bab9fbb364faa1581e4f92ba3119a872fba) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/comm... git remote add djwong-xfs https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git git fetch --no-tags djwong-xfs repair-symlink-swapext git checkout 90d15e3e9dcd303fbb36e9a54e7c36457ff9a254 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash fs/xfs/ 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 >>): fs/xfs/libxfs/xfs_symlink_remote.c:28:1: warning: no previous prototype for function 'xfs_symlink_blocks' [-Wmissing-prototypes] xfs_symlink_blocks( ^ fs/xfs/libxfs/xfs_symlink_remote.c:27:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ^ static fs/xfs/libxfs/xfs_symlink_remote.c:38:1: warning: no previous prototype for function 'xfs_symlink_hdr_set' [-Wmissing-prototypes] xfs_symlink_hdr_set( ^ fs/xfs/libxfs/xfs_symlink_remote.c:37:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ^ static fs/xfs/libxfs/xfs_symlink_remote.c:68:1: warning: no previous prototype for function 'xfs_symlink_hdr_ok' [-Wmissing-prototypes] xfs_symlink_hdr_ok( ^ fs/xfs/libxfs/xfs_symlink_remote.c:67:1: note: declare 'static' if the function is not intended to be used outside of this translation unit bool ^ static fs/xfs/libxfs/xfs_symlink_remote.c:167:1: warning: no previous prototype for function 'xfs_symlink_local_to_remote' [-Wmissing-prototypes] xfs_symlink_local_to_remote( ^ fs/xfs/libxfs/xfs_symlink_remote.c:166:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void ^ static fs/xfs/libxfs/xfs_symlink_remote.c:206:1: warning: no previous prototype for function 'xfs_symlink_shortform_verify' [-Wmissing-prototypes] xfs_symlink_shortform_verify( ^ fs/xfs/libxfs/xfs_symlink_remote.c:205:1: note: declare 'static' if the function is not intended to be used outside of this translation unit xfs_failaddr_t ^ static fs/xfs/libxfs/xfs_symlink_remote.c:239:1: warning: no previous prototype for function 'xfs_symlink_remote_read' [-Wmissing-prototypes] xfs_symlink_remote_read( ^ fs/xfs/libxfs/xfs_symlink_remote.c:238:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ^ static xfs_symlink_write_target( ^ fs/xfs/libxfs/xfs_symlink_remote.c:310:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ^ static 7 warnings generated. vim +/xfs_symlink_write_target +311 fs/xfs/libxfs/xfs_symlink_remote.c 236 237 /* Read a remote symlink target into the buffer. */ 238 int 240 struct xfs_inode *ip, 241 char *link) 242 { 243 struct xfs_mount *mp = ip->i_mount; 244 struct xfs_bmbt_irec mval[XFS_SYMLINK_MAPS]; 245 struct xfs_buf *bp; 246 xfs_daddr_t d; 247 char *cur_chunk; 248 int pathlen = ip->i_disk_size; 249 int nmaps = XFS_SYMLINK_MAPS; 250 int byte_cnt; 251 int n; 252 int error = 0; 253 int fsblocks = 0; 254 int offset; 255 256 ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL)); 257 258 fsblocks = xfs_symlink_blocks(mp, pathlen); 259 error = xfs_bmapi_read(ip, 0, fsblocks, mval, &nmaps, 0); 260 if (error) 261 goto out; 262 263 offset = 0; 264 for (n = 0; n < nmaps; n++) { 265 d = XFS_FSB_TO_DADDR(mp, mval[n].br_startblock); 266 byte_cnt = XFS_FSB_TO_B(mp, mval[n].br_blockcount); 267 268 error = xfs_buf_read(mp->m_ddev_targp, d, BTOBB(byte_cnt), 0, 269 &bp, &xfs_symlink_buf_ops); 270 if (error) 271 return error; 272 byte_cnt = XFS_SYMLINK_BUF_SPACE(mp, byte_cnt); 273 if (pathlen < byte_cnt) 274 byte_cnt = pathlen; 275 276 cur_chunk = bp->b_addr; 277 if (xfs_has_crc(mp)) { 278 if (!xfs_symlink_hdr_ok(ip->i_ino, offset, 279 byte_cnt, bp)) { 280 xfs_inode_mark_sick(ip, XFS_SICK_INO_SYMLINK); 281 error = -EFSCORRUPTED; 282 xfs_alert(mp, 283 "symlink header does not match required off/len/owner (0x%x/Ox%x,0x%llx)", 284 offset, byte_cnt, ip->i_ino); 285 xfs_buf_relse(bp); 286 goto out; 287 288 } 289 290 cur_chunk += sizeof(struct xfs_dsymlink_hdr); 291 } 292 293 memcpy(link + offset, cur_chunk, byte_cnt); 294 295 pathlen -= byte_cnt; 296 offset += byte_cnt; 297 298 xfs_buf_relse(bp); 299 } 300 ASSERT(pathlen == 0); 301 302 link[ip->i_disk_size] = '\0'; 303 error = 0; 304 305 out: 306 return error; 307 } 308 309 /* Write the symlink target into the inode. */ 310 int --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org