[intel-lts:6.6/preempt-rt 3/3] fs/hostfs/hostfs_kern.c:972:9: error: implicit declaration of function 'fsparam_string_empty'; did you mean 'fsparam_string'?

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

tree:   https://github.com/intel/linux-intel-lts.git 6.6/preempt-rt
head:   da3aec3fdaa3fcb8c9f9760d4edef06741ccfc6e
commit: be80de30b347dc2eae35dd5f7905ad9c9167dc08 [3/3] hostfs: fix the host directory parse when mounting.
config: um-allyesconfig (https://download.01.org/0day-ci/archive/20250216/202502161242.HGh7Uabf-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250216/202502161242.HGh7Uabf-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/202502161242.HGh7Uabf-lkp@intel.com/

All errors (new ones prefixed by >>):

>> fs/hostfs/hostfs_kern.c:972:9: error: implicit declaration of function 'fsparam_string_empty'; did you mean 'fsparam_string'? [-Werror=implicit-function-declaration]
     972 |         fsparam_string_empty("hostfs",          Opt_hostfs),
         |         ^~~~~~~~~~~~~~~~~~~~
         |         fsparam_string
   fs/hostfs/hostfs_kern.c:972:9: warning: initialization of 'const char *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
   fs/hostfs/hostfs_kern.c:972:9: note: (near initialization for 'hostfs_param_specs[0].name')
>> fs/hostfs/hostfs_kern.c:972:9: error: initializer element is not constant
   fs/hostfs/hostfs_kern.c:972:9: note: (near initialization for 'hostfs_param_specs[0].name')
   fs/hostfs/hostfs_kern.c:973:9: warning: braces around scalar initializer
     973 |         {}
         |         ^
   fs/hostfs/hostfs_kern.c:973:9: note: (near initialization for 'hostfs_param_specs[0].type')
   cc1: some warnings being treated as errors


vim +972 fs/hostfs/hostfs_kern.c

   970	
   971	static const struct fs_parameter_spec hostfs_param_specs[] = {
 > 972		fsparam_string_empty("hostfs",		Opt_hostfs),
   973		{}
   974	};
   975	

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