On 16/11/23 19:23, kernel test robot wrote:
Hi Ian,
kernel test robot noticed the following build warnings:
Crikey, how did this compile ... I think I need to just send a replacement
patch.
Ian
[auto build test WARNING on brauner-vfs/vfs.all]
[also build test WARNING on linus/master v6.7-rc1 next-20231116]
[cannot apply to vfs-idmapping/for-next]
[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/Ian-Kent/autofs-add-new_inode-check-in-autofs_fill_super/20231116-081017
base:https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all
patch link:https://lore.kernel.org/r/20231116000746.7359-1-raven%40themaw.net
patch subject: [PATCH] autofs: add: new_inode check in autofs_fill_super()
config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20231116/202311161909.KHau6jEj-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231116/202311161909.KHau6jEj-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/202311161909.KHau6jEj-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
fs/autofs/inode.c:330:8: error: expected identifier
goto -ENOMEM;
^
fs/autofs/inode.c:330:8: warning: misleading indentation; statement is not part of the previous 'if' [-Wmisleading-indentation]
fs/autofs/inode.c:329:2: note: previous statement is here
if (!ino)
^
fs/autofs/inode.c:349:4: error: use of undeclared identifier 'ret'
ret = invalf(fc, "Could not find process group %d",
^
fs/autofs/inode.c:351:11: error: use of undeclared identifier 'ret'
return ret;
^
fs/autofs/inode.c:330:8: warning: expression result unused [-Wunused-value]
goto -ENOMEM;
^~~~~~~
2 warnings and 3 errors generated.
vim +/if +330 fs/autofs/inode.c
306
307 static int autofs_fill_super(struct super_block *s, struct fs_context *fc)
308 {
309 struct autofs_fs_context *ctx = fc->fs_private;
310 struct autofs_sb_info *sbi = s->s_fs_info;
311 struct inode *root_inode;
312 struct dentry *root;
313 struct autofs_info *ino;
314
315 pr_debug("starting up, sbi = %p\n", sbi);
316
317 sbi->sb = s;
318 s->s_blocksize = 1024;
319 s->s_blocksize_bits = 10;
320 s->s_magic = AUTOFS_SUPER_MAGIC;
321 s->s_op = &autofs_sops;
322 s->s_d_op = &autofs_dentry_operations;
323 s->s_time_gran = 1;
324
325 /*
326 * Get the root inode and dentry, but defer checking for errors.
327 */
328 ino = autofs_new_ino(sbi);
329 if (!ino)
> 330 goto -ENOMEM;
331
332 root_inode = autofs_get_inode(s, S_IFDIR | 0755);
333 if (root_inode) {
334 root_inode->i_uid = ctx->uid;
335 root_inode->i_gid = ctx->gid;
336 root_inode->i_fop = &autofs_root_operations;
337 root_inode->i_op = &autofs_dir_inode_operations;
338 }
339 s->s_root = d_make_root(root_inode);
340 if (unlikely(!s->s_root)) {
341 autofs_free_ino(ino);
342 return -ENOMEM;
343 }
344 s->s_root->d_fsdata = ino;
345
346 if (ctx->pgrp_set) {
347 sbi->oz_pgrp = find_get_pid(ctx->pgrp);
348 if (!sbi->oz_pgrp) {
349 ret = invalf(fc, "Could not find process group %d",
350 ctx->pgrp);
351 return ret;
352 }
353 } else {
354 sbi->oz_pgrp = get_task_pid(current, PIDTYPE_PGID);
355 }
356
357 if (autofs_type_trigger(sbi->type))
358 /* s->s_root won't be contended so there's little to
359 * be gained by not taking the d_lock when setting
360 * d_flags, even when a lot mounts are being done.
361 */
362 managed_dentry_set_managed(s->s_root);
363
364 pr_debug("pipe fd = %d, pgrp = %u\n",
365 sbi->pipefd, pid_nr(sbi->oz_pgrp));
366
367 sbi->flags &= ~AUTOFS_SBI_CATATONIC;
368 return 0;
369 }
370
