[cel:nfsd-testing 166/231] include/linux/rcupdate.h:525:36: error: dereferencing pointer to incomplete type 'struct nfsd_file'

[cel:nfsd-testing 166/231] include/linux/rcupdate.h:525:36: error: dereferencing pointer to incomplete type 'struct nfsd_file'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/cel/linux nfsd-testing
head:   2bb83225da8ee0383d17783b5c903589696faf90
commit: f2be51ec3aba541721c2baa65d272553d0fe961c [166/231] NFS/localio: fix ref leak on nfs_uuid_add_file failure
config: sparc-randconfig-002-20260624 (https://download.01.org/0day-ci/archive/20260624/202606240755.8PVHHD1Q-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260624/202606240755.8PVHHD1Q-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/202606240755.8PVHHD1Q-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/rbtree.h:24,
                    from include/linux/mm_types.h:11,
                    from include/linux/mmzone.h:22,
                    from include/linux/gfp.h:7,
                    from include/linux/umh.h:4,
                    from include/linux/kmod.h:9,
                    from include/linux/module.h:18,
                    from fs/nfs_common/nfslocalio.c:7:
   fs/nfs_common/nfslocalio.c: In function 'nfs_open_local_fh':
>> include/linux/rcupdate.h:525:36: error: dereferencing pointer to incomplete type 'struct nfsd_file'
    #define RCU_INITIALIZER(v) (typeof(*(v)) __force __rcu *)(v)
                                       ^~~~
   fs/nfs_common/nfslocalio.c:305:33: note: in expansion of macro 'RCU_INITIALIZER'
      struct nfsd_file __rcu *tmp = RCU_INITIALIZER(localio);
                                    ^~~~~~~~~~~~~~~


vim +525 include/linux/rcupdate.h

ca5ecddfa8fcbd Paul E. McKenney 2010-04-28  520  
462225ae47d717 Paul E. McKenney 2013-11-11  521  /**
462225ae47d717 Paul E. McKenney 2013-11-11  522   * RCU_INITIALIZER() - statically initialize an RCU-protected global variable
462225ae47d717 Paul E. McKenney 2013-11-11  523   * @v: The value to statically initialize with.
462225ae47d717 Paul E. McKenney 2013-11-11  524   */
462225ae47d717 Paul E. McKenney 2013-11-11 @525  #define RCU_INITIALIZER(v) (typeof(*(v)) __force __rcu *)(v)
462225ae47d717 Paul E. McKenney 2013-11-11  526  

:::::: The code at line 525 was first introduced by commit
:::::: 462225ae47d7175f886281d8a91708550cd5178c rcu: Add an RCU_INITIALIZER for global RCU-protected pointers

:::::: TO: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
:::::: CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

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https://github.com/intel/lkp-tests/wiki