Re: [PATCH] smb: client: hide unused cifs_debug_dirs_proc_ops

Hi Arnd,

kernel test robot noticed the following build errors:

[auto build test ERROR on next-20260424]
[also build test ERROR on linus/master v7.1-rc1]
[cannot apply to v7.0 v7.0-rc7 v7.0-rc6]
[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/Arnd-Bergmann/smb-client-hide-unused-cifs_debug_dirs_proc_ops/20260426-163431
base:   next-20260424
patch link:    https://lore.kernel.org/r/20260423065042.1898971-1-arnd%40kernel.org
patch subject: [PATCH] smb: client: hide unused cifs_debug_dirs_proc_ops
config: microblaze-defconfig (https://download.01.org/0day-ci/archive/20260430/[email protected]/config)
compiler: microblaze-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260430/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>):

   fs/smb/client/cifs_debug.c: In function 'cifs_proc_init':
>> fs/smb/client/cifs_debug.c:937:55: error: 'cifs_debug_dirs_proc_ops' undeclared (first use in this function); did you mean 'cifs_debug_dirs_proc_show'?
     937 |         proc_create("open_dirs", 0600, proc_fs_cifs, &cifs_debug_dirs_proc_ops);
         |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~
         |                                                       cifs_debug_dirs_proc_show
   fs/smb/client/cifs_debug.c:937:55: note: each undeclared identifier is reported only once for each function it appears in
   fs/smb/client/cifs_debug.c: At top level:
   fs/smb/client/cifs_debug.c:298:12: warning: 'cifs_debug_dirs_proc_show' defined but not used [-Wunused-function]
     298 | static int cifs_debug_dirs_proc_show(struct seq_file *m, void *v)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~~


vim +937 fs/smb/client/cifs_debug.c

^1da177e4c3f41 fs/cifs/cifs_debug.c       Linus Torvalds    2005-04-16  922  
^1da177e4c3f41 fs/cifs/cifs_debug.c       Linus Torvalds    2005-04-16  923  void
^1da177e4c3f41 fs/cifs/cifs_debug.c       Linus Torvalds    2005-04-16  924  cifs_proc_init(void)
^1da177e4c3f41 fs/cifs/cifs_debug.c       Linus Torvalds    2005-04-16  925  {
36a5aeb8787fbf fs/cifs/cifs_debug.c       Alexey Dobriyan   2008-04-29  926  	proc_fs_cifs = proc_mkdir("fs/cifs", NULL);
^1da177e4c3f41 fs/cifs/cifs_debug.c       Linus Torvalds    2005-04-16  927  	if (proc_fs_cifs == NULL)
^1da177e4c3f41 fs/cifs/cifs_debug.c       Linus Torvalds    2005-04-16  928  		return;
^1da177e4c3f41 fs/cifs/cifs_debug.c       Linus Torvalds    2005-04-16  929  
3f3942aca6da35 fs/cifs/cifs_debug.c       Christoph Hellwig 2018-05-15  930  	proc_create_single("DebugData", 0, proc_fs_cifs,
3f3942aca6da35 fs/cifs/cifs_debug.c       Christoph Hellwig 2018-05-15  931  			cifs_debug_data_proc_show);
^1da177e4c3f41 fs/cifs/cifs_debug.c       Linus Torvalds    2005-04-16  932  
dfe33f9abc0899 fs/cifs/cifs_debug.c       Steve French      2018-10-30  933  	proc_create_single("open_files", 0400, proc_fs_cifs,
dfe33f9abc0899 fs/cifs/cifs_debug.c       Steve French      2018-10-30  934  			cifs_debug_files_proc_show);
dfe33f9abc0899 fs/cifs/cifs_debug.c       Steve French      2018-10-30  935  
17d912d54f2305 fs/smb/client/cifs_debug.c Enzo Matsumiya    2026-04-22  936  #ifdef CONFIG_CIFS_DEBUG
17d912d54f2305 fs/smb/client/cifs_debug.c Enzo Matsumiya    2026-04-22 @937  	proc_create("open_dirs", 0600, proc_fs_cifs, &cifs_debug_dirs_proc_ops);
17d912d54f2305 fs/smb/client/cifs_debug.c Enzo Matsumiya    2026-04-22  938  #else /* CONFIG_CIFS_DEBUG */
17d912d54f2305 fs/smb/client/cifs_debug.c Enzo Matsumiya    2026-04-22  939  	proc_create_single("open_dirs", 0400, proc_fs_cifs, cifs_debug_dirs_proc_show);
17d912d54f2305 fs/smb/client/cifs_debug.c Enzo Matsumiya    2026-04-22  940  #endif /* !CONFIG_CIFS_DEBUG */
97a32539b9568b fs/cifs/cifs_debug.c       Alexey Dobriyan   2020-02-03  941  	proc_create("Stats", 0644, proc_fs_cifs, &cifs_stats_proc_ops);
97a32539b9568b fs/cifs/cifs_debug.c       Alexey Dobriyan   2020-02-03  942  	proc_create("cifsFYI", 0644, proc_fs_cifs, &cifsFYI_proc_ops);
97a32539b9568b fs/cifs/cifs_debug.c       Alexey Dobriyan   2020-02-03  943  	proc_create("traceSMB", 0644, proc_fs_cifs, &traceSMB_proc_ops);
6539e7f3727ab9 fs/cifs/cifs_debug.c       Ronnie Sahlberg   2018-05-24  944  	proc_create("LinuxExtensionsEnabled", 0644, proc_fs_cifs,
97a32539b9568b fs/cifs/cifs_debug.c       Alexey Dobriyan   2020-02-03  945  		    &cifs_linux_ext_proc_ops);
6539e7f3727ab9 fs/cifs/cifs_debug.c       Ronnie Sahlberg   2018-05-24  946  	proc_create("SecurityFlags", 0644, proc_fs_cifs,
97a32539b9568b fs/cifs/cifs_debug.c       Alexey Dobriyan   2020-02-03  947  		    &cifs_security_flags_proc_ops);
6539e7f3727ab9 fs/cifs/cifs_debug.c       Ronnie Sahlberg   2018-05-24  948  	proc_create("LookupCacheEnabled", 0644, proc_fs_cifs,
97a32539b9568b fs/cifs/cifs_debug.c       Alexey Dobriyan   2020-02-03  949  		    &cifs_lookup_cache_proc_ops);
54be1f6c1c3749 fs/cifs/cifs_debug.c       Paulo Alcantara   2018-11-14  950  
94b0595a8e018c fs/cifs/cifs_debug.c       Aurelien Aptel    2021-03-18  951  	proc_create("mount_params", 0444, proc_fs_cifs, &cifs_mount_params_proc_ops);
94b0595a8e018c fs/cifs/cifs_debug.c       Aurelien Aptel    2021-03-18  952  

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