[jlayton:dir-deleg 14/25] fs/nfsd/nfs4state.c:9911:1: error: conflicting types for 'nfsd4_run_cb_notify'

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git dir-deleg
head:   f46f4f860e384a5bc2c7a8f2fa64872ba4e303a5
commit: 748b5689ecabe0a80846c79cc0b468005b4d7e19 [14/25] nfsd: add notification handlers for dir events
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260409/202604090534.tunlxR45-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260409/202604090534.tunlxR45-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604090534.tunlxR45-lkp@intel.com/

All errors (new ones prefixed by >>):

   fs/nfsd/nfs4state.c:3583:3: error: call to undeclared function 'nfsd4_run_cb_notify'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    3583 |                 nfsd4_run_cb_notify(ncn);
         |                 ^
>> fs/nfsd/nfs4state.c:9911:1: error: conflicting types for 'nfsd4_run_cb_notify'
    9911 | nfsd4_run_cb_notify(struct nfsd4_cb_notify *ncn)
         | ^
   fs/nfsd/nfs4state.c:3583:3: note: previous implicit declaration is here
    3583 |                 nfsd4_run_cb_notify(ncn);
         |                 ^
   2 errors generated.


vim +/nfsd4_run_cb_notify +9911 fs/nfsd/nfs4state.c

  9909	
  9910	static void
> 9911	nfsd4_run_cb_notify(struct nfsd4_cb_notify *ncn)
  9912	{
  9913		struct nfs4_delegation *dp = container_of(ncn, struct nfs4_delegation, dl_cb_notify);
  9914	
  9915		if (test_and_set_bit(NFSD4_CALLBACK_RUNNING, &ncn->ncn_cb.cb_flags))
  9916			return;
  9917	
  9918		if (!refcount_inc_not_zero(&dp->dl_stid.sc_count))
  9919			clear_bit(NFSD4_CALLBACK_RUNNING, &ncn->ncn_cb.cb_flags);
  9920		else
  9921			nfsd4_run_cb(&ncn->ncn_cb);
  9922	}
  9923	

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