Re: [PATCH v5 1/4] mm: swap: introduce swap tier infrastructure

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

Hi Youngjun,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 6381a729fa7dda43574d93ab9c61cec516dd885b]

url:    https://github.com/intel-lab-lkp/linux/commits/Youngjun-Park/mm-swap-introduce-swap-tier-infrastructure/20260327-203639
base:   6381a729fa7dda43574d93ab9c61cec516dd885b
patch link:    https://lore.kernel.org/r/20260325175453.2523280-2-youngjun.park%40lge.com
patch subject: [PATCH v5 1/4] mm: swap: introduce swap tier infrastructure
config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20260329/202603292156.2V2nVz19-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260329/202603292156.2V2nVz19-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/202603292156.2V2nVz19-lkp@intel.com/

All warnings (new ones prefixed by >>):

   mm/swap_tier.c: In function 'swap_tiers_sysfs_show':
>> mm/swap_tier.c:116:59: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'int' [-Wformat=]
     116 |                 len += sysfs_emit_at(buf, len, "%-16s %-5ld %-11d %-11d\n",
         |                                                       ~~~~^
         |                                                           |
         |                                                           long int
         |                                                       %-5d


vim +116 mm/swap_tier.c

   105	
   106	ssize_t swap_tiers_sysfs_show(char *buf)
   107	{
   108		struct swap_tier *tier;
   109		ssize_t len = 0;
   110	
   111		len += sysfs_emit_at(buf, len, "%-16s %-5s %-11s %-11s\n",
   112				 "Name", "Idx", "PrioStart", "PrioEnd");
   113	
   114		spin_lock(&swap_tier_lock);
   115		for_each_active_tier(tier) {
 > 116			len += sysfs_emit_at(buf, len, "%-16s %-5ld %-11d %-11d\n",
   117					     tier->name,
   118					     TIER_IDX(tier),
   119					     tier->prio,
   120					     TIER_END_PRIO(tier));
   121		}
   122		spin_unlock(&swap_tier_lock);
   123	
   124		return len;
   125	}
   126	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki