Hi NeilBrown, kernel test robot noticed the following build errors: [auto build test ERROR on linus/master] [also build test ERROR on v6.6 next-20231030] [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/NeilBrown/nfsd-prepare-for-supporting-admin-revocation-of-state/20231027-095832 base: linus/master patch link: https://lore.kernel.org/r/20231027015613.26247-2-neilb%40suse.de patch subject: [PATCH 1/6] nfsd: prepare for supporting admin-revocation of state config: arm-keystone_defconfig (https://download.01.org/0day-ci/archive/20231031/202310311025.kdFXiVKx-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231031/202310311025.kdFXiVKx-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/202310311025.kdFXiVKx-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): arm-linux-gnueabi-ld: fs/nfsd/nfsctl.o: in function `write_unlock_fs': >> fs/nfsd/nfsctl.c:283:(.text+0xa58): undefined reference to `nfsd4_revoke_states' vim +283 fs/nfsd/nfsctl.c 237 238 /* 239 * write_unlock_fs - Release all locks on a local file system 240 * 241 * Experimental. 242 * 243 * Input: 244 * buf: '\n'-terminated C string containing the 245 * absolute pathname of a local file system 246 * size: length of C string in @buf 247 * Output: 248 * On success: returns zero if all specified locks were released; 249 * returns one if one or more locks were not released 250 * On error: return code is negative errno value 251 */ 252 static ssize_t write_unlock_fs(struct file *file, char *buf, size_t size) 253 { 254 struct path path; 255 char *fo_path; 256 int error; 257 258 /* sanity check */ 259 if (size == 0) 260 return -EINVAL; 261 262 if (buf[size-1] != '\n') 263 return -EINVAL; 264 265 fo_path = buf; 266 if (qword_get(&buf, fo_path, size) < 0) 267 return -EINVAL; 268 trace_nfsd_ctl_unlock_fs(netns(file), fo_path); 269 error = kern_path(fo_path, 0, &path); 270 if (error) 271 return error; 272 273 /* 274 * XXX: Needs better sanity checking. Otherwise we could end up 275 * releasing locks on the wrong file system. 276 * 277 * For example: 278 * 1. Does the path refer to a directory? 279 * 2. Is that directory a mount point, or 280 * 3. Is that directory the root of an exported file system? 281 */ 282 error = nlmsvc_unlock_all_by_sb(path.dentry->d_sb); > 283 nfsd4_revoke_states(netns(file), path.dentry->d_sb); 284 285 path_put(&path); 286 return error; 287 } 288 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki