[jlayton:mgtime 8/13] kernel/time/timekeeping_debug.c:59:15: warning: no previous prototype for 'timekeeping_mg_get_floor_swaps'

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git mgtime
head:   c276587422e7965813f945523c522b95b0f5ffcf
commit: 6f453b2b31051a046df355061b0bfcfe32198083 [8/13] timekeeping: add percpu counter for tracking floor swap events
config: parisc-defconfig (https://download.01.org/0day-ci/archive/20240919/202409192105.DaLdoYKW-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240919/202409192105.DaLdoYKW-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/202409192105.DaLdoYKW-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> kernel/time/timekeeping_debug.c:59:15: warning: no previous prototype for 'timekeeping_mg_get_floor_swaps' [-Wmissing-prototypes]
      59 | unsigned long timekeeping_mg_get_floor_swaps(void)
         |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/timekeeping_mg_get_floor_swaps +59 kernel/time/timekeeping_debug.c

    58	
  > 59	unsigned long timekeeping_mg_get_floor_swaps(void)
    60	{
    61		int i;
    62		unsigned long sum = 0;
    63	
    64		for_each_possible_cpu(i)
    65			sum += per_cpu(timekeeping_mg_floor_swaps, i);
    66		return sum < 0 ? 0 : sum;
    67	}
    68	

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