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Message-ID: <202308171526.0mTJ7zrg-lkp@intel.com>
Date: Thu, 17 Aug 2023 15:33:48 +0800
From: kernel test robot <lkp@...el.com>
To: Namjae Jeon <linkinjeon@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Steve French <stfrench@...rosoft.com>
Subject: fs/smb/server/vfs.c:1207: warning: Function parameter or member
'parent_path' not described in 'ksmbd_vfs_kern_path_locked'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 4853c74bd7ab7fdb83f319bd9ace8a08c031e9b6
commit: 2b57a4322b1b14348940744fdc02f9a86cbbdbeb ksmbd: check if a mount point is crossed during path lookup
date: 4 weeks ago
config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20230817/202308171526.0mTJ7zrg-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230817/202308171526.0mTJ7zrg-lkp@intel.com/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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308171526.0mTJ7zrg-lkp@intel.com/
All warnings (new ones prefixed by >>):
fs/smb/server/vfs.c:54: warning: Function parameter or member 'parent' not described in 'ksmbd_vfs_lock_parent'
fs/smb/server/vfs.c:54: warning: Function parameter or member 'child' not described in 'ksmbd_vfs_lock_parent'
fs/smb/server/vfs.c:375: warning: Function parameter or member 'fp' not described in 'ksmbd_vfs_read'
fs/smb/server/vfs.c:375: warning: Excess function parameter 'fid' description in 'ksmbd_vfs_read'
fs/smb/server/vfs.c:492: warning: Function parameter or member 'fp' not described in 'ksmbd_vfs_write'
fs/smb/server/vfs.c:492: warning: Excess function parameter 'fid' description in 'ksmbd_vfs_write'
fs/smb/server/vfs.c:555: warning: Function parameter or member 'path' not described in 'ksmbd_vfs_getattr'
fs/smb/server/vfs.c:555: warning: Function parameter or member 'stat' not described in 'ksmbd_vfs_getattr'
fs/smb/server/vfs.c:555: warning: Excess function parameter 'work' description in 'ksmbd_vfs_getattr'
fs/smb/server/vfs.c:555: warning: Excess function parameter 'fid' description in 'ksmbd_vfs_getattr'
fs/smb/server/vfs.c:555: warning: Excess function parameter 'attrs' description in 'ksmbd_vfs_getattr'
fs/smb/server/vfs.c:572: warning: Function parameter or member 'p_id' not described in 'ksmbd_vfs_fsync'
fs/smb/server/vfs.c:595: warning: Function parameter or member 'work' not described in 'ksmbd_vfs_remove_file'
fs/smb/server/vfs.c:595: warning: Function parameter or member 'path' not described in 'ksmbd_vfs_remove_file'
fs/smb/server/vfs.c:595: warning: Excess function parameter 'name' description in 'ksmbd_vfs_remove_file'
fs/smb/server/vfs.c:638: warning: Function parameter or member 'work' not described in 'ksmbd_vfs_link'
fs/smb/server/vfs.c:815: warning: Function parameter or member 'fp' not described in 'ksmbd_vfs_truncate'
fs/smb/server/vfs.c:815: warning: Excess function parameter 'fid' description in 'ksmbd_vfs_truncate'
fs/smb/server/vfs.c:856: warning: Excess function parameter 'size' description in 'ksmbd_vfs_listxattr'
fs/smb/server/vfs.c:933: warning: Function parameter or member 'path' not described in 'ksmbd_vfs_setxattr'
fs/smb/server/vfs.c:933: warning: Excess function parameter 'dentry' description in 'ksmbd_vfs_setxattr'
fs/smb/server/vfs.c:958: warning: Function parameter or member 'option' not described in 'ksmbd_vfs_set_fadvise'
fs/smb/server/vfs.c:958: warning: Excess function parameter 'options' description in 'ksmbd_vfs_set_fadvise'
fs/smb/server/vfs.c:1172: warning: Function parameter or member 'um' not described in 'ksmbd_vfs_lookup_in_dir'
fs/smb/server/vfs.c:1207: warning: Function parameter or member 'work' not described in 'ksmbd_vfs_kern_path_locked'
>> fs/smb/server/vfs.c:1207: warning: Function parameter or member 'parent_path' not described in 'ksmbd_vfs_kern_path_locked'
vim +1207 fs/smb/server/vfs.c
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1194
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1195 /**
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1196 * ksmbd_vfs_kern_path_locked() - lookup a file and get path info
265fd1991c1db8 fs/ksmbd/vfs.c Hyunchul Lee 2021-09-25 1197 * @name: file path that is relative to share
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1198 * @flags: lookup flags
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1199 * @path: if lookup succeed, return path info
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1200 * @caseless: caseless filename lookup
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1201 *
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1202 * Return: 0 on success, otherwise error
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1203 */
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1204 int ksmbd_vfs_kern_path_locked(struct ksmbd_work *work, char *name,
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1205 unsigned int flags, struct path *parent_path,
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1206 struct path *path, bool caseless)
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 @1207 {
265fd1991c1db8 fs/ksmbd/vfs.c Hyunchul Lee 2021-09-25 1208 struct ksmbd_share_config *share_conf = work->tcon->share_conf;
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1209 int err;
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1210
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1211 err = ksmbd_vfs_path_lookup_locked(share_conf, name, flags, parent_path,
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1212 path);
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1213 if (!err)
cf5e7f734f4455 fs/smb/server/vfs.c Namjae Jeon 2023-05-30 1214 return 0;
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1215
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1216 if (caseless) {
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1217 char *filepath;
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1218 size_t path_len, remain_len;
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1219
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1220 filepath = kstrdup(name, GFP_KERNEL);
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1221 if (!filepath)
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1222 return -ENOMEM;
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1223
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1224 path_len = strlen(filepath);
265fd1991c1db8 fs/ksmbd/vfs.c Hyunchul Lee 2021-09-25 1225 remain_len = path_len;
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1226
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1227 *parent_path = share_conf->vfs_path;
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1228 path_get(parent_path);
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1229
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1230 while (d_can_lookup(parent_path->dentry)) {
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1231 char *filename = filepath + path_len - remain_len;
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1232 char *next = strchrnul(filename, '/');
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1233 size_t filename_len = next - filename;
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1234 bool is_last = !next[0];
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1235
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1236 if (filename_len == 0)
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1237 break;
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1238
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1239 err = ksmbd_vfs_lookup_in_dir(parent_path, filename,
dbab80e2071ad8 fs/ksmbd/vfs.c Atte Heikkilä 2022-09-28 1240 filename_len,
dbab80e2071ad8 fs/ksmbd/vfs.c Atte Heikkilä 2022-09-28 1241 work->conn->um);
265fd1991c1db8 fs/ksmbd/vfs.c Hyunchul Lee 2021-09-25 1242 if (err)
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1243 goto out2;
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1244
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1245 next[0] = '\0';
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1246
265fd1991c1db8 fs/ksmbd/vfs.c Hyunchul Lee 2021-09-25 1247 err = vfs_path_lookup(share_conf->vfs_path.dentry,
265fd1991c1db8 fs/ksmbd/vfs.c Hyunchul Lee 2021-09-25 1248 share_conf->vfs_path.mnt,
265fd1991c1db8 fs/ksmbd/vfs.c Hyunchul Lee 2021-09-25 1249 filepath,
265fd1991c1db8 fs/ksmbd/vfs.c Hyunchul Lee 2021-09-25 1250 flags,
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1251 path);
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1252 if (err)
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1253 goto out2;
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1254 else if (is_last)
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1255 goto out1;
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1256 path_put(parent_path);
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1257 *parent_path = *path;
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1258
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1259 next[0] = '/';
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1260 remain_len -= filename_len + 1;
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1261 }
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1262
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1263 err = -EINVAL;
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1264 out2:
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1265 path_put(parent_path);
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1266 out1:
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1267 kfree(filepath);
3c20378325c710 fs/cifsd/vfs.c Hyunchul Lee 2021-04-13 1268 }
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1269
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1270 if (!err) {
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1271 err = ksmbd_vfs_lock_parent(parent_path->dentry, path->dentry);
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1272 if (err) {
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1273 path_put(path);
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1274 path_put(parent_path);
2b57a4322b1b14 fs/smb/server/vfs.c Namjae Jeon 2023-07-17 1275 }
74d7970febf7e9 fs/ksmbd/vfs.c Namjae Jeon 2023-04-21 1276 }
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1277 return err;
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1278 }
f44158485826c0 fs/cifsd/vfs.c Namjae Jeon 2021-03-16 1279
:::::: The code at line 1207 was first introduced by commit
:::::: f44158485826c076335d6860d35872271a83791d cifsd: add file operations
:::::: TO: Namjae Jeon <namjae.jeon@...sung.com>
:::::: CC: Steve French <stfrench@...rosoft.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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