[openeuler:OLK-5.10 3401/3401] fs/xfs/libxfs/xfs_alloc.c:91:1: warning: no previous prototype for 'xfs_ag_fixup_aside'

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

tree:   https://gitee.com/openeuler/kernel.git OLK-5.10
head:   41baca24098d5757f3aea4d98e63eb9d9f7d43a3
commit: 12a5c9f8f69c682f3aaf799a18f4a3631cc9bfbc [3401/3401] xfs: fix xfs shutdown since we reserve more blocks in agfl fixup
config: x86_64-randconfig-161-20251210 (https://download.01.org/0day-ci/archive/20251211/202512110538.DUkYagUT-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.4.0-5) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512110538.DUkYagUT-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/202512110538.DUkYagUT-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> fs/xfs/libxfs/xfs_alloc.c:91:1: warning: no previous prototype for 'xfs_ag_fixup_aside' [-Wmissing-prototypes]
      91 | xfs_ag_fixup_aside(
         | ^~~~~~~~~~~~~~~~~~


vim +/xfs_ag_fixup_aside +91 fs/xfs/libxfs/xfs_alloc.c

    83	
    84	/*
    85	 * Twice fixup for the same ag may happen within exact one tp, and the consume
    86	 * of agfl after first fixup may trigger second fixup's failure, then xfs will
    87	 * shutdown. To avoid that, we reserve blocks which can satisfy the second
    88	 * fixup.
    89	 */
    90	xfs_extlen_t
  > 91	xfs_ag_fixup_aside(
    92		struct xfs_mount	*mp)
    93	{
    94		xfs_extlen_t ret;
    95	
    96		ret = 2 * mp->m_ag_maxlevels;
    97		if (xfs_has_rmapbt(mp))
    98			ret += mp->m_rmap_maxlevels;
    99	
   100		return ret;
   101	}
   102	

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