Hi Ian, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.20-rc2] [cannot apply to next-20181115] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Ian-Kent/autofs-improve-ioctl-sbi-checks/20181114-021150 config: x86_64-allmodconfig (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All error/warnings (new ones prefixed by >>): >> fs/autofs/init.c:19:25: warning: symbol 'autofs_fs_type' was not declared. Should it be static? -- include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y >> fs/autofs/inode.c:372:35: error: cannot dereference this type fs/autofs/inode.c:373:35: error: cannot dereference this type >> fs/autofs/inode.c:372:35: warning: unknown expression (8 46) fs/autofs/inode.c:373:35: warning: unknown expression (8 46) fs/autofs/inode.c: In function 'autofs_fill_super': fs/autofs/inode.c:372:28: error: invalid type argument of '->' (have 'struct autofs_fs_params') root_inode->i_uid = params->uid; ^~ fs/autofs/inode.c:373:28: error: invalid type argument of '->' (have 'struct autofs_fs_params') root_inode->i_gid = params->gid; ^~ vim +372 fs/autofs/inode.c e35160168 Ian Kent 2018-11-13 324 e35160168 Ian Kent 2018-11-13 325 int autofs_fill_super(struct super_block *s, void *data, int silent) e35160168 Ian Kent 2018-11-13 326 { e35160168 Ian Kent 2018-11-13 327 struct inode *root_inode; e35160168 Ian Kent 2018-11-13 328 struct dentry *root; f4507adde Ian Kent 2018-11-13 329 struct autofs_fs_params params; e35160168 Ian Kent 2018-11-13 330 struct autofs_sb_info *sbi; e35160168 Ian Kent 2018-11-13 331 struct autofs_info *ino; e35160168 Ian Kent 2018-11-13 332 int ret = -EINVAL; e35160168 Ian Kent 2018-11-13 333 e35160168 Ian Kent 2018-11-13 334 sbi = autofs_alloc_sbi(s); e35160168 Ian Kent 2018-11-13 335 if (!sbi) e35160168 Ian Kent 2018-11-13 336 return -ENOMEM; e35160168 Ian Kent 2018-11-13 337 e35160168 Ian Kent 2018-11-13 338 pr_debug("starting up, sbi = %p\n", sbi); e35160168 Ian Kent 2018-11-13 339 e35160168 Ian Kent 2018-11-13 340 s->s_fs_info = sbi; ebc921ca9 Ian Kent 2018-06-07 341 s->s_blocksize = 1024; ebc921ca9 Ian Kent 2018-06-07 342 s->s_blocksize_bits = 10; ebc921ca9 Ian Kent 2018-06-07 343 s->s_magic = AUTOFS_SUPER_MAGIC; ebc921ca9 Ian Kent 2018-06-07 344 s->s_op = &autofs_sops; ebc921ca9 Ian Kent 2018-06-07 345 s->s_d_op = &autofs_dentry_operations; ebc921ca9 Ian Kent 2018-06-07 346 s->s_time_gran = 1; ebc921ca9 Ian Kent 2018-06-07 347 ebc921ca9 Ian Kent 2018-06-07 348 /* ebc921ca9 Ian Kent 2018-06-07 349 * Get the root inode and dentry, but defer checking for errors. ebc921ca9 Ian Kent 2018-06-07 350 */ ebc921ca9 Ian Kent 2018-06-07 351 ino = autofs_new_ino(sbi); ebc921ca9 Ian Kent 2018-06-07 352 if (!ino) { ebc921ca9 Ian Kent 2018-06-07 353 ret = -ENOMEM; ebc921ca9 Ian Kent 2018-06-07 354 goto fail_free; ebc921ca9 Ian Kent 2018-06-07 355 } ebc921ca9 Ian Kent 2018-06-07 356 root_inode = autofs_get_inode(s, S_IFDIR | 0755); eef302f31 Ian Kent 2018-11-13 357 if (!root_inode) { eef302f31 Ian Kent 2018-11-13 358 ret = -ENOMEM; eef302f31 Ian Kent 2018-11-13 359 goto fail_ino; eef302f31 Ian Kent 2018-11-13 360 } ebc921ca9 Ian Kent 2018-06-07 361 root = d_make_root(root_inode); ebc921ca9 Ian Kent 2018-06-07 362 if (!root) eef302f31 Ian Kent 2018-11-13 363 goto fail_iput; ebc921ca9 Ian Kent 2018-06-07 364 ebc921ca9 Ian Kent 2018-06-07 365 root->d_fsdata = ino; ebc921ca9 Ian Kent 2018-06-07 366 f4507adde Ian Kent 2018-11-13 367 memset(¶ms, 0, sizeof(struct autofs_fs_params)); f4507adde Ian Kent 2018-11-13 368 if (autofs_parse_options(data, ¶ms)) { ebc921ca9 Ian Kent 2018-06-07 369 pr_err("called with bogus options\n"); ebc921ca9 Ian Kent 2018-06-07 370 goto fail_dput; ebc921ca9 Ian Kent 2018-06-07 371 } f4507adde Ian Kent 2018-11-13 @372 root_inode->i_uid = params->uid; f4507adde Ian Kent 2018-11-13 373 root_inode->i_gid = params->gid; ebc921ca9 Ian Kent 2018-06-07 374 f4507adde Ian Kent 2018-11-13 375 ret = autofs_apply_sbi_options(sbi, ¶ms); f4507adde Ian Kent 2018-11-13 376 if (ret) ebc921ca9 Ian Kent 2018-06-07 377 goto fail_dput; ebc921ca9 Ian Kent 2018-06-07 378 ebc921ca9 Ian Kent 2018-06-07 379 if (autofs_type_trigger(sbi->type)) ebc921ca9 Ian Kent 2018-06-07 380 __managed_dentry_set_managed(root); ebc921ca9 Ian Kent 2018-06-07 381 ebc921ca9 Ian Kent 2018-06-07 382 root_inode->i_fop = &autofs_root_operations; ebc921ca9 Ian Kent 2018-06-07 383 root_inode->i_op = &autofs_dir_inode_operations; ebc921ca9 Ian Kent 2018-06-07 384 ebc921ca9 Ian Kent 2018-06-07 385 /* ebc921ca9 Ian Kent 2018-06-07 386 * Success! Install the root dentry now to indicate completion. ebc921ca9 Ian Kent 2018-06-07 387 */ ebc921ca9 Ian Kent 2018-06-07 388 s->s_root = root; ebc921ca9 Ian Kent 2018-06-07 389 return 0; ebc921ca9 Ian Kent 2018-06-07 390 ebc921ca9 Ian Kent 2018-06-07 391 /* ebc921ca9 Ian Kent 2018-06-07 392 * Failure ... clean up. ebc921ca9 Ian Kent 2018-06-07 393 */ ebc921ca9 Ian Kent 2018-06-07 394 fail_dput: ebc921ca9 Ian Kent 2018-06-07 395 dput(root); ebc921ca9 Ian Kent 2018-06-07 396 goto fail_free; eef302f31 Ian Kent 2018-11-13 397 fail_iput: eef302f31 Ian Kent 2018-11-13 398 iput(root_inode); ebc921ca9 Ian Kent 2018-06-07 399 fail_ino: ebc921ca9 Ian Kent 2018-06-07 400 autofs_free_ino(ino); ebc921ca9 Ian Kent 2018-06-07 401 fail_free: ebc921ca9 Ian Kent 2018-06-07 402 kfree(sbi); ebc921ca9 Ian Kent 2018-06-07 403 s->s_fs_info = NULL; ebc921ca9 Ian Kent 2018-06-07 404 return ret; ebc921ca9 Ian Kent 2018-06-07 405 } ebc921ca9 Ian Kent 2018-06-07 406 :::::: The code at line 372 was first introduced by commit :::::: f4507adde6ebc94c273ccc2c18f2afb0fea20cf9 autofs - use struct for mount params :::::: TO: Ian Kent <raven@xxxxxxxxxx> :::::: CC: 0day robot <lkp@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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