[akpm-mm:mm-unstable 481/507] lib/xarray.c:1251:14: error: redefinition of 'xas_try_split_min_order'

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable
head:   2f0c87542d97822659e81f55ae5e5cc1994f3339
commit: 835714732ae42a4b4f590316b06d06826bff2483 [481/507] mm/filemap: use xas_try_split() in __filemap_add_folio()
config: i386-buildonly-randconfig-003-20250309 (https://download.01.org/0day-ci/archive/20250309/202503091121.RktXlKnp-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250309/202503091121.RktXlKnp-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/202503091121.RktXlKnp-lkp@intel.com/

All errors (new ones prefixed by >>):

>> lib/xarray.c:1251:14: error: redefinition of 'xas_try_split_min_order'
    1251 | unsigned int xas_try_split_min_order(unsigned int order)
         |              ^~~~~~~~~~~~~~~~~~~~~~~
   In file included from lib/xarray.c:13:
   include/linux/xarray.h:1587:28: note: previous definition of 'xas_try_split_min_order' with type 'unsigned int(unsigned int)'
    1587 | static inline unsigned int xas_try_split_min_order(unsigned int order)
         |                            ^~~~~~~~~~~~~~~~~~~~~~~


vim +/xas_try_split_min_order +1251 lib/xarray.c

  1237	
  1238	/**
  1239	 * xas_try_split_min_order() - Minimal split order xas_try_split() can accept
  1240	 * @order: Current entry order.
  1241	 *
  1242	 * xas_try_split() can split a multi-index entry to smaller than @order - 1 if
  1243	 * no new xa_node is needed. This function provides the minimal order
  1244	 * xas_try_split() supports.
  1245	 *
  1246	 * Return: the minimal order xas_try_split() supports
  1247	 *
  1248	 * Context: Any context.
  1249	 *
  1250	 */
> 1251	unsigned int xas_try_split_min_order(unsigned int order)
  1252	{
  1253		if (order % XA_CHUNK_SHIFT == 0)
  1254			return order == 0 ? 0 : order - 1;
  1255	
  1256		return order - (order % XA_CHUNK_SHIFT);
  1257	}
  1258	EXPORT_SYMBOL_GPL(xas_try_split_min_order);
  1259	

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