On Fri, Aug 24, 2018 at 06:32:14PM +0900, Naoya Horiguchi wrote:

-	int hwcache_align, object_size, objs_per_slab;
-	int sanity_checks, slab_size, store_user, trace;
+	int hwcache_align, objs_per_slab;
+	int sanity_checks, store_user, trace;
 	int order, poison, reclaim_account, red_zone;
+	unsigned int object_size, slab_size;

Surely hwcache_align and objs_per_slab can't be negative either?
Nor the other three.  So maybe convert all seven of these variables to
unsigned int?