[jlayton:kdevops 15/24] fs/nfsd/nfs4proc.c:3688:14: error: invalid application of 'sizeof' to an incomplete type 'const struct nfsd4_operation[]'

[jlayton:kdevops 15/24] fs/nfsd/nfs4proc.c:3688:14: error: invalid application of 'sizeof' to an incomplete type 'const struct nfsd4_operation[]'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git kdevops
head:   bcf256c81b0b6e8d045b86a7dd8cad6835f141d0
commit: 72c7e2439c6031dd40440f2d3e17c06afee34bea [15/24] nfsd: wire up GET_DIR_DELEGATION handling
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20240312/202403120808.wkgN6axS-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240312/202403120808.wkgN6axS-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/202403120808.wkgN6axS-lkp@intel.com/

All errors (new ones prefixed by >>):

   fs/nfsd/nfs4proc.c:3517:14: error: use of undeclared identifier 'nfsd4_get_dir_delegation'
    3517 |                 .op_func = nfsd4_get_dir_delegation,
         |                            ^
>> fs/nfsd/nfs4proc.c:3688:14: error: invalid application of 'sizeof' to an incomplete type 'const struct nfsd4_operation[]'
    3688 |         if (opnum < ARRAY_SIZE(nfsd4_ops))
         |                     ^~~~~~~~~~~~~~~~~~~~~
   include/linux/array_size.h:11:32: note: expanded from macro 'ARRAY_SIZE'
      11 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
         |                                ^~~~~
   fs/nfsd/nfs4proc.c:3209:37: warning: tentative array definition assumed to have one element
    3209 | static const struct nfsd4_operation nfsd4_ops[] = {
         |                                     ^
   1 warning and 2 errors generated.


vim +3688 fs/nfsd/nfs4proc.c

07d1f8020738ba J. Bruce Fields 2014-03-06  3685  
f1c7f79b6ab4f7 Adrian Bunk     2008-08-08  3686  static const char *nfsd4_op_name(unsigned opnum)
b001a1b6aa9609 Benny Halevy    2008-07-02  3687  {
b001a1b6aa9609 Benny Halevy    2008-07-02 @3688  	if (opnum < ARRAY_SIZE(nfsd4_ops))
b001a1b6aa9609 Benny Halevy    2008-07-02  3689  		return nfsd4_ops[opnum].op_name;
b001a1b6aa9609 Benny Halevy    2008-07-02  3690  	return "unknown_operation";
b001a1b6aa9609 Benny Halevy    2008-07-02  3691  }
b001a1b6aa9609 Benny Halevy    2008-07-02  3692  

:::::: The code at line 3688 was first introduced by commit
:::::: b001a1b6aa960949a24c2cdc28257dfcc9428d74 nfsd: dprint operation names

:::::: TO: Benny Halevy <bhalevy@panasas.com>
:::::: CC: J. Bruce Fields <bfields@citi.umich.edu>

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