Re: [PATCH 11/11] nfsd: allow layout state to be admin-revoked.

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

Hi NeilBrown,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.7-rc2 next-20231124]
[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/NeilBrown/nfsd-hold-cl_lock-for-hash_delegation_locked/20231124-123723
base:   linus/master
patch link:    https://lore.kernel.org/r/20231124002925.1816-12-neilb%40suse.de
patch subject: [PATCH 11/11] nfsd: allow layout state to be admin-revoked.
config: x86_64-buildonly-randconfig-002-20231124 (https://download.01.org/0day-ci/archive/20231124/202311241941.jNlc0B4A-lkp@intel.com/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/20231124/202311241941.jNlc0B4A-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/202311241941.jNlc0B4A-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from fs/nfsd/export.c:24:
>> fs/nfsd/pnfs.h:94:46: warning: declaration of 'struct nfs4_layout_stateid' will not be visible outside of this function [-Wvisibility]
   static inline void nfsd4_close_layout(struct nfs4_layout_stateid *ls)
                                                ^
   fs/nfsd/export.c:1016:17: warning: variable 'inode' set but not used [-Wunused-but-set-variable]
           struct inode            *inode;
                                    ^
   2 warnings generated.


vim +94 fs/nfsd/pnfs.h

    86	
    87	static inline void nfsd4_return_all_client_layouts(struct nfs4_client *clp)
    88	{
    89	}
    90	static inline void nfsd4_return_all_file_layouts(struct nfs4_client *clp,
    91			struct nfs4_file *fp)
    92	{
    93	}
  > 94	static inline void nfsd4_close_layout(struct nfs4_layout_stateid *ls)

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